WO2012171505A1 - An impedance matching system and apparatus - Google Patents
An impedance matching system and apparatus Download PDFInfo
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- WO2012171505A1 WO2012171505A1 PCT/CN2012/077092 CN2012077092W WO2012171505A1 WO 2012171505 A1 WO2012171505 A1 WO 2012171505A1 CN 2012077092 W CN2012077092 W CN 2012077092W WO 2012171505 A1 WO2012171505 A1 WO 2012171505A1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/38—Impedance-matching networks
Definitions
- the present invention relates to the field of electronic technology, and more particularly to an impedance matching system and an impedance matching device. Background technique
- impedance matching between different units in the system is generally performed by an impedance matching unit, for example: the impedance of the RF load circuit is 50 or 75 ohms, and the impedance of the RF amplifier is often Smaller, it is necessary to connect an impedance matching unit between the RF amplifier and the RF load, and the impedance matching unit matches the RF load impedance with the output impedance of the RF amplifier.
- the impedance matching unit is mainly a circuit that matches the fundamental impedance, so that the harmonic impedance affects various gains, output power, linearity, and efficiency of the amplifier circuit, such as switch-type power amplifiers and Dow.
- the performance of the Doherty amplifier is particularly obvious; the existing impedance matching unit considers the fundamental impedance and the harmonic impedance to form a matching network.
- the debugging of the impedance matching network is difficult. The change will cause the fundamental and harmonic impedances to change at the same time.
- Embodiments of the present invention provide an impedance matching system and an impedance matching device to achieve separate matching of fundamental impedance and harmonic impedance, and debugging complexity of impedance matching of a tubular circuit.
- the embodiment of the present invention provides the following technical solutions:
- An impedance matching system comprising: a first impedance circuit, a second impedance circuit, and an impedance matching device,
- the impedance matching device includes: a reference impedance matching subunit, an adjustable fundamental tuning circuit subunit, and an adjustable Nth harmonic tuning circuit subunit, wherein the N is a natural number greater than 1;
- the reference impedance matching subunit is connected in series between the first impedance circuit and the second impedance circuit; one end of the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are respectively grounded, And the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are connected in series and/or in parallel, and are connected to one end of the reference impedance matching subunit; wherein the reference impedance matching sub a unit and an adjustable fundamental impedance matching subunit for matching a fundamental impedance between the first impedance circuit and the second impedance circuit; the adjustable Nth harmonic tuning circuit subunit is configured to match the first The Nth harmonic impedance between the impedance circuit and the second impedance circuit.
- An impedance matching device for matching an impedance between a first impedance circuit and a second impedance circuit, the impedance matching device comprising:
- N is a natural number greater than one
- the reference impedance matching subunit is connected in series between the first impedance circuit and the second impedance circuit; one end of the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are respectively grounded, And the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are connected in series and/or in parallel, and are connected to one end of the reference impedance matching subunit; wherein the reference impedance matching sub a unit and an adjustable fundamental impedance matching subunit for matching a fundamental impedance between the first impedance circuit and the second impedance circuit; the adjustable Nth harmonic tuning circuit subunit is configured to match the first The Nth harmonic impedance between the impedance circuit and the second impedance circuit.
- the impedance matching system of the embodiment of the present invention includes a first impedance circuit, a second impedance circuit and an impedance matching device, wherein the reference impedance matching sub-unit and the adjustable fundamental wave are respectively tuned in the impedance matching device.
- the circuit subunit matches the fundamental impedance between the first and second impedance circuits, and the harmonics between the first and second impedance circuits are tuned by the adjustable Nth harmonic tuned circuit subunit in the impedance matching device.
- the impedance is matched, thus achieving a separate matching of the fundamental impedance and the harmonic impedance, and the respective matching of the fundamental impedance and the harmonic impedance is advantageous.
- FIG. 1 is a schematic structural diagram of an impedance matching system according to an embodiment of the present invention.
- FIG. 2 is a schematic structural diagram of another impedance matching system according to an embodiment of the present invention
- FIG. 3 is a schematic structural diagram of an impedance matching system according to an application embodiment of the present invention.
- an impedance matching system may include: a first impedance circuit 10, a second impedance circuit 20, and an impedance matching device 30; wherein the impedance matching device 30 includes a reference impedance matching sub-unit 301, An adjustable Nth harmonic tuning circuit subunit 302 and an adjustable fundamental tuning circuit subunit 303, the N being a natural number greater than one.
- the adjustable fundamental tuning circuit subunit 303 comprises inductive components and capacitive components connected in series (or in parallel), and the adjustable Nth harmonic tuning circuit subunit 302 comprises inductive components and capacitors connected in series (or in parallel). Sexual components.
- the series connection is taken as an example.
- the series (or parallel) resonant frequency of the capacitive element 322 is the Nth harmonic frequency, so the adjustable N times of tuning power
- the sub-unit 302 is configured to match the Nth harmonic impedance between the first impedance circuit 10 and the second impedance circuit 20, and the inductive component 312 is capable of accessing the inductance in the adjustable Nth harmonic tuning circuit subunit 302.
- the inductive component is adjusted such that the Nth harmonic impedance matched by the impedance matching device 30 can be varied by adjusting the amount of inductance in the inductive Nth harmonic tuning circuit subunit 302 by the inductive component 312.
- the series (or parallel) resonant frequency of the capacitive element 323 is the 1st harmonic frequency
- the inductive component 313 is connected to the adjustable fundamental tuning circuit unit 303.
- the inductive component of the inductive component can be adjusted such that the N-substance impedance matched by the impedance matching device 30 can be varied by adjusting the amount of inductance of the inductive component 313 into the adjustable fundamental tuning circuit sub-unit 303.
- the reference impedance matching sub-unit 301 is connected in series to the first impedance circuit 10 and the second impedance circuit
- the reference impedance matching sub-unit 301 and the adjustable fundamental tuning circuit sub-unit 303 are used to match the fundamental impedance between the first impedance circuit 10 and the second impedance circuit 20.
- the impedance matching means that a specific matching relationship is satisfied between the impedance of the second impedance circuit 20 (ie, the load impedance) and the output impedance of the first impedance circuit 10, and the purpose of the impedance matching device 30 is to make the first The impedance circuit 10 and the second impedance circuit 20 achieve impedance matching.
- adjustable Nth harmonic tuning circuit subunit 302 and the adjustable fundamental tuning circuit subunit 303 are respectively connected to the ground, and the inductive component and the adjustable Nth harmonic tuning circuit in the adjustable fundamental tuning circuit subunit
- the inductive elements in subunit 302 can be connected to one end of reference impedance matching subunit 301 after being connected in series and/or in parallel.
- the inductive component and the capacitive component included in the adjustable fundamental harmonic tuning circuit subunit 303 are connected in series, and the inductive component and the capacitive component included in the adjustable Nth harmonic tuning circuit subunit 302 are connected in series;
- the inductive component of the adjustable Nth harmonic tuning circuit subunit 302 is connected in series with the inductive component of the adjustable fundamental tuning circuit subunit 303 and is connected to one end of the reference impedance matching subunit 301; the adjustable Nth harmonic tuning circuit
- the capacitive elements in subunit 302 and adjustable fundamental tuning circuit subunit 302 are respectively grounded.
- the impedance matching device 30 can perform matching in consideration of the fundamental impedance and the harmonic impedance.
- the inductive component and the capacitive component in the adjustable fundamental tuning circuit subunit 303 may be connected in series, and the inductive component and the capacitive component in the adjustable Nth harmonic tuning circuit subunit 302 may be connected in series, in this case,
- the series resonant frequency of the capacitive elements in the two units is the fundamental frequency (ie, the first harmonic Wave frequency) and Nth harmonic frequency.
- the inductive component and the capacitive component in the adjustable fundamental tuning circuit subunit 303 may also be connected in parallel, and the inductive component and the capacitive component in the adjustable Nth harmonic tuning circuit subunit 302 may also be connected in parallel.
- the parallel resonant frequencies of the capacitive elements in the two units are the fundamental frequency (ie, the first harmonic frequency) and the Nth harmonic frequency, respectively.
- the inductance adjustment of the inductive component in the adjustable fundamental tuning circuit sub-unit 303 and the adjustable N-order harmonic tuning circuit sub-unit 302 can be achieved by adjusting the length of the inductive component into the circuit.
- the adjustable Nth harmonic tuning circuit subunit 302 when the inductance of the inductive component 312 accessing the cell changes, since the series (or parallel) resonant frequency of the capacitive component 322 is the Nth harmonic frequency, The impedance of the Nth harmonic matched by the impedance matching device 30 in the circuit changes, and theoretically affects the fundamental impedance in the circuit, because the change of the relatively higher harmonic impedance affects the relatively low harmonic impedance. .
- the system is provided with an adjustable fundamental tuning circuit sub-unit 303 for adjusting the fundamental impedance matched by the impedance matching device 30, and the adjustable fundamental tuning circuit sub-unit 303 and the adjustable N-order harmonic tuning.
- the basic structure of circuit sub-unit 302 may be the same, except that the series (or parallel) resonant frequency of the capacitive elements in tunable fundamental tuning circuit sub-unit 303 is the fundamental frequency.
- the first impedance circuit 10 and the second impedance circuit 20 in the above impedance matching system can be any circuit that needs impedance matching, such as an amplifier, a power tube or a voltage controlled oscillator (VCO).
- the inductive component in the impedance matching device 30 may be a microstrip line, or a strip line, or a metal connecting line, or a component such as an inductor; etc.; the capacitive component in the impedance matching device 30 may be a microstrip line, or a strip line , or components such as capacitors.
- the adjustable Nth harmonic tuning circuit subunit can change the harmonic inductance of the impedance matching device by adjusting the access inductance of the inductive component
- the adjustable fundamental tuning circuit subunit can adjust the access of the inductive component.
- the amount of inductance thereby changing the fundamental impedance of the impedance matching device.
- two or two of the impedance matching devices 30 may be included.
- Adjustable high order (ie greater than or equal to 2 times) harmonic tuning circuit subunit such as shown in Figure 2, adjustable N+m harmonic tuning circuit subunit and adjustable Nn harmonic tuning circuit subunit (Of course, only one of them can be included), and the inductive components of the adjustable N+m harmonic tuning circuit subunit, the adjustable Nn harmonic tuning circuit subunit, and the adjustable Nth harmonic tuning circuit subunit are connected in series After connection and / or parallel connection (in Figure 2, the inductive components of each adjustable high-order (Nn times, N times, N + m times) harmonic tuning circuit sub-unit are connected in series), connected to the reference impedance Matching one end of the subunit 301; wherein n is a natural number less than N, the m is a natural number; the adjustable N+m harmonic tuning circuit subunit is used to match between the first impedance circuit 10 and the second impedance circuit 20 N+m harmonic impedance; the tunable Nn harmonic tuning circuit subunit
- the harmonic impedance can improve the efficiency, power, gain and linearity of the impedance matching system.
- the Class B amplifier has higher harmonic impedance than the fundamental impedance. When it is 0, its saturation efficiency is 78.5%. If the fundamental wave output impedance matching is properly adjusted and its even harmonic impedance is infinite, the saturation efficiency is 100%.
- the first impedance circuit is an amplifier
- the second impedance circuit is a load circuit of the amplifier, that is, a capacitor and a resistor connected in series to the ground
- the reference impedance matching subunit is an output matching unit
- the capacitive component of the adjustable second harmonic tuning circuit subunit is C2
- the series resonant frequency is the second harmonic frequency
- the capacitance of the third harmonic tuning circuit subunit is adjustable.
- the component is C3, the series resonant frequency is the third harmonic frequency, the capacitive component of the adjustable fundamental tuning circuit subunit is C1, the series resonant frequency is the fundamental frequency, and the inductive components of the three harmonic tuning circuit subunits are Feeder.
- the output matching unit of Figure 3 is connected between the amplifier and the load circuit; the inductive component of the adjustable second harmonic tuning circuit subunit, the adjustable third harmonic tuning circuit subunit and the adjustable fundamental tuning circuit subunit After the wires are connected in series, they are connected to one end of the output matching unit, and each The inductive component and the capacitive component of the adjustable harmonic tuning circuit unit are connected in series between one end of the output matching unit and the ground.
- the inductance of the adjustable harmonic tuning circuit unit can be adjusted by adjusting the inductive component, thereby changing the corresponding harmonic impedance in the impedance matching device, and sequentially adjusting from the higher harmonic impedance to the lower harmonic impedance, and finally completed. Impedance matching.
- the output matching unit performs the main fundamental matching between the amplifier and the load circuit.
- the length of the feeder in the adjustable third harmonic tuning circuit subunit that is, the position of the C point on the feeder (ie, adjusting the inductive component of the adjustable third harmonic tuning circuit subunit to the adjustable third harmonic tuning circuit)
- the inductance of the subunit so that the third harmonic impedance value is 10*j ohms; and then adjust the length of the feeder in the adjustable second harmonic tuning circuit subunit, that is, the position of the b point on the feeder (ie, the adjustment can be Adjusting the inductance of the second harmonic tuning circuit subunit into the second harmonic tuning circuit subunit, so that the second harmonic impedance value is 30*j ohm, and the third harmonic impedance is not affected (The adjustment of the low-order harmonic impedance does not affect the high-order harmonic impedance); and then adjusts the length of the feeder in the sub-unit of the adjustable fundamental tuning circuit, that is, the position of
- the embodiment of the invention further provides an impedance matching device for matching the impedance between the first impedance circuit and the second impedance circuit, and the impedance matching device comprises:
- the reference impedance matching subunit is connected in series between the first impedance circuit and the second impedance circuit; one end of the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are respectively grounded, and the above The fundamental wave tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are connected in series and/or in parallel, and are connected to one end of the reference impedance matching subunit.
- the reference impedance matching subunit and the adjustable fundamental impedance matching subunit are used to match a fundamental impedance between the first impedance circuit and the second impedance circuit; and the adjustable Nth harmonic tuning circuit subunit is used for matching The Nth harmonic impedance between the first impedance circuit and the second impedance circuit.
- the adjustable fundamental tuning circuit subunit includes series and/or parallel connections The inductive component and the capacitive component; the adjustable Nth harmonic tuning circuit subunit comprises an inductive component and a capacitive component connected in series and/or in parallel; wherein the capacitance in the adjustable Nth harmonic tuning circuit subunit
- the resonant frequency of the sexual component is the Nth harmonic frequency
- the inductive component is an inductive component capable of adjusting the inductance in the subunit of the adjustable Nth harmonic tuning circuit
- in the adjustable fundamental tuning circuit subunit The resonant frequency of the capacitive component is the fundamental frequency
- the inductive component is an inductive component that can be adjusted by the inductance in the sub-unit of the adjustable fundamental tuning circuit.
- the inductive component and the capacitive component included in the adjustable fundamental tuning circuit subunit are connected in series, and the inductive component and the capacitive component included in the adjustable Nth harmonic tuning circuit subunit are connected in series;
- the inductive component of the adjustable Nth harmonic tuning circuit subunit is connected in series with the inductive component of the adjustable fundamental tuning circuit subunit and is connected to one end of the reference impedance matching subunit; the adjustable Nth harmonic tuning The capacitive elements in the circuit subunit and the adjustable fundamental tuning circuit subunit are grounded, respectively.
- the impedance matching device may further include: an adjustable N+m harmonic tuning circuit subunit and an adjustable Nn harmonic tuning circuit subunit (or one of the), wherein the adjustable N+ The inductive components of the mth harmonic tuning circuit subunit and the adjustable Nn subharmonic tuning circuit subunit are connected to each other in series and/or in parallel, and are connected to one end of the reference impedance matching subunit; wherein, the above n is less than N The natural number, the above m is a natural number; the tunable N+m harmonic tuning circuit subunit is used to match the N+m harmonic impedance between the first impedance circuit and the second impedance circuit; The wave tuning circuit subunit is configured to match the Nn harmonic impedance between the first impedance circuit and the second impedance circuit.
- the inductive component can be a microstrip line, or a strip line, or a metal connection line, or an inductor, etc.
- the capacitive element can be a microstrip line, or a strip line, or a capacitor.
- first impedance circuit and the second impedance circuit in this embodiment may be any circuit that needs impedance matching, such as an amplifier, a power tube or a voltage controlled oscillator (VCO).
- VCO voltage controlled oscillator
- the structure of the impedance matching device in this embodiment may be the impedance matching device 30 in the above embodiment.
- the impedance matching system of the embodiment of the present invention includes a first impedance circuit, a second impedance circuit, and an impedance matching device, wherein the reference impedance matching sub-unit and the adjustable fundamental wave tuning circuit in the impedance matching device are respectively utilized.
- Subunit pair of bases between the first and second impedance circuits The wave impedance is matched, and the harmonic impedance between the first and second impedance circuits is matched by the adjustable Nth harmonic tuning circuit subunit in the impedance matching device, thereby realizing the fundamental impedance and harmonics.
- the impedances are matched separately, and the respective matching of the fundamental impedance and the harmonic impedance is beneficial to the debugging complexity of the barrel matching process and the impedance matching of the barrel circuit.
- the harmonic impedance or the fundamental impedance of the impedance matching device can be changed by adjusting the access inductance of the inductive component, and the impedance matching process is easy and the operability is strong.
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Abstract
Disclosed in the embodiments of this application are an impedance matching system and apparatus. In which, an impedance matching system includes: a first impedance circuit, a second impedance circuit and an impedance matching apparatus, the impedance matching apparatus includes: a basic impedance matching subunit, an adjustable base wave resonance circuit subunit and an adjustable N sub-harmonic resonance circuit subunit, N is an natural number and greater than 1; the basic impedance matching subunit and the adjustable base wave resonance circuit subunit are used to match the base wave impedance between the first impedance circuit and the second impedance circuit; the adjustable N sub-harmonic resonance circuit subunit is used to match the N sub-harmonic impedance between the first impedance circuit and the second impedance circuit. Embodiments of this application benefit realize the respective matching of the base wave impedance and the harmonic impedance, and simplified the debugging complexity of circuit impedance matching.
Description
阻抗匹配***和阻抗匹配装置 本申请要求于 2011 年 06 月 17 日提交中国专利局、 申请号为 201110165188.1、 发明名称为 "阻抗匹配***和阻抗匹配装置" 的中国专利 申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域 RESISTANCE MATCHING SYSTEM AND RESISTANCE MATCHING DEVICE This application claims priority from Chinese Patent Application No. 201110165188.1, entitled "Impedance Matching System and Impedance Matching Device", filed on June 17, 2011, the entire contents of which is hereby incorporated by reference. This is incorporated herein by reference. Technical field
本发明涉及电子技术领域， 特别涉及阻抗匹配***和阻抗匹配装置。 背景技术 The present invention relates to the field of electronic technology, and more particularly to an impedance matching system and an impedance matching device. Background technique
在现有的阻抗匹配***如通信射频***中， 一般会通过阻抗匹配单元来 进行***中不同单元之间的阻抗匹配， 例如： 射频负载电路的阻抗为 50或 75 欧姆， 而射频放大器的阻抗往往较小， 就需要在射频放大器与射频负载之间 连接阻抗匹配单元， 通过阻抗匹配单元使得射频负载阻抗与射频放大器的输 出阻抗相匹配。 In an existing impedance matching system such as a communication RF system, impedance matching between different units in the system is generally performed by an impedance matching unit, for example: the impedance of the RF load circuit is 50 or 75 ohms, and the impedance of the RF amplifier is often Smaller, it is necessary to connect an impedance matching unit between the RF amplifier and the RF load, and the impedance matching unit matches the RF load impedance with the output impedance of the RF amplifier.
目前阻抗匹配单元主要是对基波阻抗进行匹配的电路，这样谐波阻抗 会影响电路中如放大电路的增益、 输出功率、 线性和效率等各项指标， 这 种影响在开关类功放和道尔蒂 （Doherty ) 功放中表现得尤为明显； 而现 有的另一种阻抗匹配单元是将基波阻抗和谐波阻抗综合考虑形成匹配网 络， 但是这种阻抗匹配网络的调试较困难， 对匹配网络的改变将同时使得 基波和各次谐波阻抗发生变化。 发明内容 本发明实施例提供阻抗匹配***和阻抗匹配装置， 以便实现对基波阻 抗和谐波阻抗的分别匹配， 筒化电路阻抗匹配的调试复杂度。 At present, the impedance matching unit is mainly a circuit that matches the fundamental impedance, so that the harmonic impedance affects various gains, output power, linearity, and efficiency of the amplifier circuit, such as switch-type power amplifiers and Dow. The performance of the Doherty amplifier is particularly obvious; the existing impedance matching unit considers the fundamental impedance and the harmonic impedance to form a matching network. However, the debugging of the impedance matching network is difficult. The change will cause the fundamental and harmonic impedances to change at the same time. SUMMARY OF THE INVENTION Embodiments of the present invention provide an impedance matching system and an impedance matching device to achieve separate matching of fundamental impedance and harmonic impedance, and debugging complexity of impedance matching of a tubular circuit.
为解决上述技术问题， 本发明实施例提供以下技术方案： To solve the above technical problem, the embodiment of the present invention provides the following technical solutions:
一种阻抗匹配***， 包括：
第一阻抗电路、 第二阻抗电路和阻抗匹配装置， An impedance matching system, comprising: a first impedance circuit, a second impedance circuit, and an impedance matching device,
所述阻抗匹配装置包括： 基准阻抗匹配子单元、 可调基波调谐电路子 单元和可调 N次谐波调谐电路子单元， 所述 N为大于 1的自然数； The impedance matching device includes: a reference impedance matching subunit, an adjustable fundamental tuning circuit subunit, and an adjustable Nth harmonic tuning circuit subunit, wherein the N is a natural number greater than 1;
所述基准阻抗匹配子单元串联连接于所述第一阻抗电路和第二阻抗 电路之间； 所述可调基波调谐电路子单元和可调 N次谐波调谐电路子单元 的一端分别接地， 且所述可调基波调谐电路子单元和可调 N次谐波调谐电 路子单元串联和 /或并联连接后， 连接于所述基准阻抗匹配子单元的一端； 其中， 所述基准阻抗匹配子单元和可调基波阻抗匹配子单元用于匹配 所述第一阻抗电路和第二阻抗电路之间的基波阻抗； 所述可调 N次谐波调 谐电路子单元用于匹配所述第一阻抗电路和第二阻抗电路之间的 N次谐波 阻抗。 The reference impedance matching subunit is connected in series between the first impedance circuit and the second impedance circuit; one end of the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are respectively grounded, And the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are connected in series and/or in parallel, and are connected to one end of the reference impedance matching subunit; wherein the reference impedance matching sub a unit and an adjustable fundamental impedance matching subunit for matching a fundamental impedance between the first impedance circuit and the second impedance circuit; the adjustable Nth harmonic tuning circuit subunit is configured to match the first The Nth harmonic impedance between the impedance circuit and the second impedance circuit.
一种阻抗匹配装置， 用于匹配第一阻抗电路和第二阻抗电路之间的阻 抗， 所述阻抗匹配装置包括： An impedance matching device for matching an impedance between a first impedance circuit and a second impedance circuit, the impedance matching device comprising:
基准阻抗匹配子单元、 可调基波调谐电路子单元和可调 N次谐波调谐 电路子单元， 所述 N为大于 1的自然数； a reference impedance matching subunit, an adjustable fundamental tuning circuit subunit, and an adjustable Nth harmonic tuning circuit subunit, wherein said N is a natural number greater than one;
所述基准阻抗匹配子单元串联连接于所述第一阻抗电路和第二阻抗 电路之间； 所述可调基波调谐电路子单元和可调 N次谐波调谐电路子单元 的一端分别接地， 且所述可调基波调谐电路子单元和可调 N次谐波调谐电 路子单元串联和 /或并联连接后， 连接于所述基准阻抗匹配子单元的一端； 其中， 所述基准阻抗匹配子单元和可调基波阻抗匹配子单元用于匹配 所述第一阻抗电路和第二阻抗电路之间的基波阻抗； 所述可调 N次谐波调 谐电路子单元用于匹配所述第一阻抗电路和第二阻抗电路之间的 N次谐波 阻抗。 The reference impedance matching subunit is connected in series between the first impedance circuit and the second impedance circuit; one end of the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are respectively grounded, And the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are connected in series and/or in parallel, and are connected to one end of the reference impedance matching subunit; wherein the reference impedance matching sub a unit and an adjustable fundamental impedance matching subunit for matching a fundamental impedance between the first impedance circuit and the second impedance circuit; the adjustable Nth harmonic tuning circuit subunit is configured to match the first The Nth harmonic impedance between the impedance circuit and the second impedance circuit.
由上可见， 本发明实施例的阻抗匹配***中包括第一阻抗电路、 第二 阻抗电路和阻抗匹配装置， 其中， 由于分别是利用阻抗匹配装置中的基准 阻抗匹配子单元和可调基波调谐电路子单元对第一和第二阻抗电路之间 的基波阻抗进行匹配，而利用阻抗匹配装置中的可调 N次谐波调谐电路子 单元对第一和第二阻抗电路之间的谐波阻抗进行匹配， 这样就实现了对基 波阻抗和谐波阻抗的分别匹配， 而基波阻抗和谐波阻抗的分别匹配有利于
筒化匹配过程， 筒化电路阻抗匹配的调试复杂度。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对 实施例或现有技术描述中所需要使用的附图作筒单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员 来讲， 在不付出创造性劳动性的前提下， 还可以根据这些附图获得其他的 附图。 It can be seen that the impedance matching system of the embodiment of the present invention includes a first impedance circuit, a second impedance circuit and an impedance matching device, wherein the reference impedance matching sub-unit and the adjustable fundamental wave are respectively tuned in the impedance matching device. The circuit subunit matches the fundamental impedance between the first and second impedance circuits, and the harmonics between the first and second impedance circuits are tuned by the adjustable Nth harmonic tuned circuit subunit in the impedance matching device The impedance is matched, thus achieving a separate matching of the fundamental impedance and the harmonic impedance, and the respective matching of the fundamental impedance and the harmonic impedance is advantageous. The tube matching process, the debugging complexity of the impedance matching of the barrel circuit. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art description will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.
图 1是本发明实施例提供的一种阻抗匹配***的结构示意图； 1 is a schematic structural diagram of an impedance matching system according to an embodiment of the present invention;
图 2是本发明实施例提供的另一种阻抗匹配***的结构示意图； 图 3是本发明应用实施例提供的一种阻抗匹配***的结构示意图。 具体实施方式 下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进 行清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没 有作出创造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的 范围。 2 is a schematic structural diagram of another impedance matching system according to an embodiment of the present invention; and FIG. 3 is a schematic structural diagram of an impedance matching system according to an application embodiment of the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
参见图 1 , 本发明实施例提供的一种阻抗匹配***， 可包括： 第一阻抗电路 10、 第二阻抗电路 20和阻抗匹配装置 30; 其中， 阻抗匹 配装置 30包括基准阻抗匹配子单元 301、 可调 N次谐波调谐电路子单元 302 和可调基波调谐电路子单元 303 , 该 N是大于 1的自然数。 Referring to FIG. 1 , an impedance matching system provided by an embodiment of the present invention may include: a first impedance circuit 10, a second impedance circuit 20, and an impedance matching device 30; wherein the impedance matching device 30 includes a reference impedance matching sub-unit 301, An adjustable Nth harmonic tuning circuit subunit 302 and an adjustable fundamental tuning circuit subunit 303, the N being a natural number greater than one.
其中， 可调基波调谐电路子单元 303包括串联（或并联） 连接的感性 元件和容性元件， 可调 N次谐波调谐电路子单元 302都包括串联（或并联） 连接的感性元件和容性元件。 Wherein, the adjustable fundamental tuning circuit subunit 303 comprises inductive components and capacitive components connected in series (or in parallel), and the adjustable Nth harmonic tuning circuit subunit 302 comprises inductive components and capacitors connected in series (or in parallel). Sexual components.
图 1中以串联为例说明， 在可调 N次调谐电路子单元 302中， 其容性元 件 322的串联（或并联）谐振频率为 N次谐波频率， 故而该可调 N次调谐电
路子单元 302用于匹配第一阻抗电路 10和第二阻抗电路 20之间的 N次谐波 阻抗， 而其感性元件 312为接入可调 N次谐波调谐电路子单元 302中的电感 量能够调节的感性元件， 这样， 可通过调节感性元件 312接入可调 N次谐波 调谐电路子单元 302中的电感量来改变阻抗匹配装置 30匹配的 N次谐波阻 抗。 在可调基波调谐电路子单元 303中， 其容性元件 323的串联（或并联） 谐振频率为 1次谐波频率， 而其感性元件 313为接入可调基波调谐电路单元 303中的电感量能够调节的感性元件， 这样， 可通过调节感性元件 313接入 可调基波调谐电路子单元 303中的电感量来改变阻抗匹配装置 30匹配的 N 次基波阻抗。 In FIG. 1, the series connection is taken as an example. In the adjustable N-time tuning circuit sub-unit 302, the series (or parallel) resonant frequency of the capacitive element 322 is the Nth harmonic frequency, so the adjustable N times of tuning power The sub-unit 302 is configured to match the Nth harmonic impedance between the first impedance circuit 10 and the second impedance circuit 20, and the inductive component 312 is capable of accessing the inductance in the adjustable Nth harmonic tuning circuit subunit 302. The inductive component is adjusted such that the Nth harmonic impedance matched by the impedance matching device 30 can be varied by adjusting the amount of inductance in the inductive Nth harmonic tuning circuit subunit 302 by the inductive component 312. In the adjustable fundamental tuning circuit sub-unit 303, the series (or parallel) resonant frequency of the capacitive element 323 is the 1st harmonic frequency, and the inductive component 313 is connected to the adjustable fundamental tuning circuit unit 303. The inductive component of the inductive component can be adjusted such that the N-substance impedance matched by the impedance matching device 30 can be varied by adjusting the amount of inductance of the inductive component 313 into the adjustable fundamental tuning circuit sub-unit 303.
基准阻抗匹配子单元 301串联连接于第一阻抗电路 10和第二阻抗电路 The reference impedance matching sub-unit 301 is connected in series to the first impedance circuit 10 and the second impedance circuit
20之间， 基准阻抗匹配子单元 301和可调基波调谐电路子单元 303用于对第 一阻抗电路 10和第二阻抗电路 20之间的基波阻抗进行匹配。 其中， 阻抗匹 配指的就是， 使第二阻抗电路 20的阻抗（即负载阻抗）与第一阻抗电路 10 的输出阻抗之间满足特定配合关系， 而设置阻抗匹配装置 30的目的， 就是 使得第一阻抗电路 10和第二阻抗电路 20实现阻抗匹配。 Between 20, the reference impedance matching sub-unit 301 and the adjustable fundamental tuning circuit sub-unit 303 are used to match the fundamental impedance between the first impedance circuit 10 and the second impedance circuit 20. The impedance matching means that a specific matching relationship is satisfied between the impedance of the second impedance circuit 20 (ie, the load impedance) and the output impedance of the first impedance circuit 10, and the purpose of the impedance matching device 30 is to make the first The impedance circuit 10 and the second impedance circuit 20 achieve impedance matching.
可调 N次谐波调谐电路子单元 302和可调基波调谐电路子单元 303的一 端分别与地线连接， 可调基波调谐电路子单元中的感性元件与可调 N次谐 波调谐电路子单元 302中的感性元件相互串联和 /或并联连接后可连接于基 准阻抗匹配子单元 301的一端。 One end of the adjustable Nth harmonic tuning circuit subunit 302 and the adjustable fundamental tuning circuit subunit 303 are respectively connected to the ground, and the inductive component and the adjustable Nth harmonic tuning circuit in the adjustable fundamental tuning circuit subunit The inductive elements in subunit 302 can be connected to one end of reference impedance matching subunit 301 after being connected in series and/or in parallel.
举例来说， 例如可调基波调谐电路子单元 303包含的感性元件和容性 元件串联连接，可调 N次谐波调谐电路子单元 302中包含的感性元件和容性 元件串联连接； 其中， 该可调 N次谐波调谐电路子单元 302的感性元件与可 调基波调谐电路子单元 303的感性元件串联连接后连接于基准阻抗匹配子 单元 301的一端； 可调 N次谐波调谐电路子单元 302和可调基波调谐电路子 单元 302中的容性元件分别接地。 For example, the inductive component and the capacitive component included in the adjustable fundamental harmonic tuning circuit subunit 303 are connected in series, and the inductive component and the capacitive component included in the adjustable Nth harmonic tuning circuit subunit 302 are connected in series; The inductive component of the adjustable Nth harmonic tuning circuit subunit 302 is connected in series with the inductive component of the adjustable fundamental tuning circuit subunit 303 and is connected to one end of the reference impedance matching subunit 301; the adjustable Nth harmonic tuning circuit The capacitive elements in subunit 302 and adjustable fundamental tuning circuit subunit 302 are respectively grounded.
阻抗匹配装置 30可以综合考虑基波阻抗和谐波阻抗进行匹配。 可调基 波调谐电路子单元 303中的感性元件和容性元件可以是串联连接、 可调 N 次谐波调谐电路子单元 302中的感性元件和容性元件可以是串联连接， 这 时， 这两个单元中的容性元件的串联谐振频率分别为基波频率 （即 1次谐
波频率）和 N次谐波频率。 当然， 可调基波调谐电路子单元 303中的感性元 件和容性元件也可以是并联连接、可调 N次谐波调谐电路子单元 302中的感 性元件和容性元件也可以是并联连接， 这时， 这两个单元中的容性元件的 并联谐振频率分别为基波频率（即 1次谐波频率 )和 N次谐波频率。 在实际 应用中， 可调基波调谐电路子单元 303和可调 N次谐波调谐电路子单元 302 中感性元件的电感量调节， 可以通过调节该感性元件接入电路中的长度来 实现。 The impedance matching device 30 can perform matching in consideration of the fundamental impedance and the harmonic impedance. The inductive component and the capacitive component in the adjustable fundamental tuning circuit subunit 303 may be connected in series, and the inductive component and the capacitive component in the adjustable Nth harmonic tuning circuit subunit 302 may be connected in series, in this case, The series resonant frequency of the capacitive elements in the two units is the fundamental frequency (ie, the first harmonic Wave frequency) and Nth harmonic frequency. Of course, the inductive component and the capacitive component in the adjustable fundamental tuning circuit subunit 303 may also be connected in parallel, and the inductive component and the capacitive component in the adjustable Nth harmonic tuning circuit subunit 302 may also be connected in parallel. At this time, the parallel resonant frequencies of the capacitive elements in the two units are the fundamental frequency (ie, the first harmonic frequency) and the Nth harmonic frequency, respectively. In practical applications, the inductance adjustment of the inductive component in the adjustable fundamental tuning circuit sub-unit 303 and the adjustable N-order harmonic tuning circuit sub-unit 302 can be achieved by adjusting the length of the inductive component into the circuit.
对于可调 N次谐波调谐电路子单元 302来说， 接入该单元的感性元件 312的电感量发生改变时， 由于容性元件 322的串联（或并联）谐振频率为 N次谐波频率， 电路中阻抗匹配装置 30匹配的 N次谐波阻抗就会发生改变， 且理论上会影响电路中的基波阻抗， 因为， 相对高次谐波阻抗的变化会对 相对低次谐波阻抗产生影响。 为了消除这种影响， ***中配置可调基波调 谐电路子单元 303 , 用来调节阻抗匹配装置 30匹配的基波阻抗， 而可调基 波调谐电路子单元 303和可调 N次谐波调谐电路子单元 302的基本结构可能 是相同的， 不同的是可调基波调谐电路子单元 303中容性元件的串联（或 并联） 谐振频率为基波频率。 For the adjustable Nth harmonic tuning circuit subunit 302, when the inductance of the inductive component 312 accessing the cell changes, since the series (or parallel) resonant frequency of the capacitive component 322 is the Nth harmonic frequency, The impedance of the Nth harmonic matched by the impedance matching device 30 in the circuit changes, and theoretically affects the fundamental impedance in the circuit, because the change of the relatively higher harmonic impedance affects the relatively low harmonic impedance. . In order to eliminate this effect, the system is provided with an adjustable fundamental tuning circuit sub-unit 303 for adjusting the fundamental impedance matched by the impedance matching device 30, and the adjustable fundamental tuning circuit sub-unit 303 and the adjustable N-order harmonic tuning. The basic structure of circuit sub-unit 302 may be the same, except that the series (or parallel) resonant frequency of the capacitive elements in tunable fundamental tuning circuit sub-unit 303 is the fundamental frequency.
可以理解， 上述阻抗匹配***中的第一阻抗电路 10和第二阻抗电路 20 可以是任何需要进行阻抗匹配的电路， 比如放大器， 功率管或压控振荡器 ( VCO )等电路。 阻抗匹配装置 30中的感性元件可以为微带线，或带状线， 或金属连接线， 或电感等元器件等； 阻抗匹配装置 30中的容性元件可以为 微带线， 或带状线， 或电容等元器件等。 It can be understood that the first impedance circuit 10 and the second impedance circuit 20 in the above impedance matching system can be any circuit that needs impedance matching, such as an amplifier, a power tube or a voltage controlled oscillator (VCO). The inductive component in the impedance matching device 30 may be a microstrip line, or a strip line, or a metal connecting line, or a component such as an inductor; etc.; the capacitive component in the impedance matching device 30 may be a microstrip line, or a strip line , or components such as capacitors.
由上可见， 在本实施例的阻抗匹配***中包括第一阻抗电路、 第二阻 抗电路和阻抗匹配装置， 阻抗匹配装置中的基准阻抗匹配子单元对第一和 第二阻抗电路之间的阻抗进行匹配， 可调 N次谐波调谐电路子单元可以通 过调节感性元件的接入电感量， 从而改变阻抗匹配装置的谐波阻抗， 可调 基波调谐电路子单元可以通过调节感性元件的接入电感量， 从而改变阻抗 匹配装置的基波阻抗。 这样就实现了对基波阻抗和谐波阻抗的分别匹配， 且电路的调试也比较筒单， 即调节电路中感性元件的电感量。 As can be seen from the above, in the impedance matching system of the embodiment, the first impedance circuit, the second impedance circuit and the impedance matching device are included, and the impedance between the reference impedance matching subunit in the impedance matching device and the first and second impedance circuits is For matching, the adjustable Nth harmonic tuning circuit subunit can change the harmonic inductance of the impedance matching device by adjusting the access inductance of the inductive component, and the adjustable fundamental tuning circuit subunit can adjust the access of the inductive component. The amount of inductance, thereby changing the fundamental impedance of the impedance matching device. In this way, the matching of the fundamental impedance and the harmonic impedance is realized, and the debugging of the circuit is also relatively simple, that is, adjusting the inductance of the inductive component in the circuit.
在另一个具体的实施例中， 阻抗匹配装置 30中可以包括两个或两个以
上的可调高次 （即大于或等于 2次） 谐波调谐电路子单元， 例如图 2所示， 可调 N+m次谐波调谐电路子单元和可调 N-n次谐波调谐电路子单元 （当然 也可只包括其中一个） ， 而可调 N+m次谐波调谐电路子单元、 可调 N-n次 谐波调谐电路子单元、 可调 N次谐波调谐电路子单元的感性元件相互串联 连接和 /或并联连接后 （其中， 图 2中以各个可调高次（ N-n次、 N次、 N+m 次）谐波调谐电路子单元的感性元件串联连接为例） ， 连接于基准阻抗匹 配子单元 301的一端； 其中， 该 n为小于 N的自然数、 该 m为自然数； 可调 N+m次谐波调谐电路子单元用于匹配第一阻抗电路 10和第二阻抗电路 20 之间的 N+m次谐波阻抗； 可调 N-n次谐波调谐电路子单元用于匹配第一阻 抗电路 10和第二阻抗电路 20之间的 N-n次谐波阻抗。 举例来说， 阻抗匹配 装置 30包括的高次谐波调谐电路子单元例如有， 可调 2次谐波调谐电路子 单元， 可调 3次谐波调谐电路子单元、 可调 4次谐波调谐电路子单元等等。 In another specific embodiment, two or two of the impedance matching devices 30 may be included. Adjustable high order (ie greater than or equal to 2 times) harmonic tuning circuit subunit, such as shown in Figure 2, adjustable N+m harmonic tuning circuit subunit and adjustable Nn harmonic tuning circuit subunit (Of course, only one of them can be included), and the inductive components of the adjustable N+m harmonic tuning circuit subunit, the adjustable Nn harmonic tuning circuit subunit, and the adjustable Nth harmonic tuning circuit subunit are connected in series After connection and / or parallel connection (in Figure 2, the inductive components of each adjustable high-order (Nn times, N times, N + m times) harmonic tuning circuit sub-unit are connected in series), connected to the reference impedance Matching one end of the subunit 301; wherein n is a natural number less than N, the m is a natural number; the adjustable N+m harmonic tuning circuit subunit is used to match between the first impedance circuit 10 and the second impedance circuit 20 N+m harmonic impedance; the tunable Nn harmonic tuning circuit subunit is used to match the Nn harmonic impedance between the first impedance circuit 10 and the second impedance circuit 20. For example, the impedance matching device 30 includes a higher harmonic tuning circuit subunit such as an adjustable 2nd harmonic tuning circuit subunit, an adjustable 3rd harmonic tuning circuit subunit, and an adjustable 4th harmonic tuning. Circuit subunits and so on.
在实际应用中， 对谐波阻抗进行匹配可以使得阻抗匹配***的效率、 功率、 增益和线性等指标得到提升， 以效率为例说明， Class B放大器除基 波阻抗外， 高次谐波阻抗均为 0, 其饱和效率为 78.5% , 若对基波输出阻抗 匹配进行适当调节， 再将其偶次谐波阻抗变为无穷大， 则其饱和效率为 100%。 In practical applications, matching the harmonic impedance can improve the efficiency, power, gain and linearity of the impedance matching system. Taking the efficiency as an example, the Class B amplifier has higher harmonic impedance than the fundamental impedance. When it is 0, its saturation efficiency is 78.5%. If the fundamental wave output impedance matching is properly adjusted and its even harmonic impedance is infinite, the saturation efficiency is 100%.
为便于更好的理解和实施本发明实施例的上述方案， 下面以一个具体 的应用电路为例来说明各个可调谐波调谐电路子单元的连接关系。 In order to better understand and implement the above solution of the embodiment of the present invention, a specific application circuit is taken as an example to illustrate the connection relationship of each adjustable harmonic tuning circuit subunit.
请参考图 3 , 在如图 3所示的阻抗匹配***中第一阻抗电路为放大器， 第二阻抗电路为放大器的负载电路， 即串联连接于地线的电容和电阻； 在 阻抗匹配装置中： 基准阻抗匹配子单元为输出匹配单元， 可调二次谐波调 谐电路子单元的容性元件为 C2, 其串联谐振频率为二次谐波频率、 可调三 次谐波调谐电路子单元的容性元件为 C3 , 其串联谐振频率为三次谐波频 率， 可调基波调谐电路子单元的容性元件为 C1 , 其串联谐振频率为基波频 率， 三个谐波调谐电路子单元的感性元件为馈电线。 Referring to FIG. 3, in the impedance matching system shown in FIG. 3, the first impedance circuit is an amplifier, and the second impedance circuit is a load circuit of the amplifier, that is, a capacitor and a resistor connected in series to the ground; in the impedance matching device: The reference impedance matching subunit is an output matching unit, the capacitive component of the adjustable second harmonic tuning circuit subunit is C2, the series resonant frequency is the second harmonic frequency, and the capacitance of the third harmonic tuning circuit subunit is adjustable. The component is C3, the series resonant frequency is the third harmonic frequency, the capacitive component of the adjustable fundamental tuning circuit subunit is C1, the series resonant frequency is the fundamental frequency, and the inductive components of the three harmonic tuning circuit subunits are Feeder.
图 3中输出匹配单元连接在放大器与负载电路之间； 可调二次谐波调 谐电路子单元、 可调三次谐波调谐电路子单元和可调基波调谐电路子单元 中的感性元件即馈电线相互串联后， 再与输出匹配单元的一端连接， 且每
个可调谐波调谐电路单元中的感性元件和容性元件都串联连接在输出匹 配单元的一端和地线之间。 这样就可以通过调节感性元件接入这些可调谐 波调谐电路单元的电感量， 从而改变阻抗匹配装置中对应的谐波阻抗， 从 高次谐波阻抗到低次谐波阻抗依次调节， 最终完成阻抗匹配。 The output matching unit of Figure 3 is connected between the amplifier and the load circuit; the inductive component of the adjustable second harmonic tuning circuit subunit, the adjustable third harmonic tuning circuit subunit and the adjustable fundamental tuning circuit subunit After the wires are connected in series, they are connected to one end of the output matching unit, and each The inductive component and the capacitive component of the adjustable harmonic tuning circuit unit are connected in series between one end of the output matching unit and the ground. In this way, the inductance of the adjustable harmonic tuning circuit unit can be adjusted by adjusting the inductive component, thereby changing the corresponding harmonic impedance in the impedance matching device, and sequentially adjusting from the higher harmonic impedance to the lower harmonic impedance, and finally completed. Impedance matching.
图 3所示阻抗匹配***中， 输出匹配单元完成对放大器与负载电路之 间主要的基波匹配。 通过调节可调三次谐波调谐电路子单元中馈电线的长 度即 C点在馈电线上的位置 （即调整可调三次谐波调谐电路子单元中感性 元件接入该可调三次谐波调谐电路子单元的电感量）， 使得三次谐波阻抗 值为 10*j欧；而后再调节可调二次谐波调谐电路子单元中馈电线的长度即 b 点在馈电线上的位置（即调整可调二次谐波调谐电路子单元中感性元件接 入该二次谐波调谐电路子单元的电感量），使得二次谐波阻抗值为 30*j欧， 且三次谐波阻抗不会受到影响 （低次谐波阻抗的调节不影响高次谐波阻 抗） ； 而后调节可调基波调谐电路子单元中馈电线的长度即 a点在馈电线 上的位置（即调整可调基波调谐电路子单元中感性元件接入该可调基波调 谐电路单元的电感量） ， 最终完成三次谐波、 二次谐波和基波阻抗的阻抗 匹配。 当然， 在实际应用中也不限于上述举例的阻抗匹配调节顺序。 本发明实施例还提供一种阻抗匹配装置， 用于匹配第一阻抗电路和第 二阻抗电路之间的阻抗， 阻抗匹配装置， 包括： In the impedance matching system shown in Figure 3, the output matching unit performs the main fundamental matching between the amplifier and the load circuit. By adjusting the length of the feeder in the adjustable third harmonic tuning circuit subunit, that is, the position of the C point on the feeder (ie, adjusting the inductive component of the adjustable third harmonic tuning circuit subunit to the adjustable third harmonic tuning circuit) The inductance of the subunit), so that the third harmonic impedance value is 10*j ohms; and then adjust the length of the feeder in the adjustable second harmonic tuning circuit subunit, that is, the position of the b point on the feeder (ie, the adjustment can be Adjusting the inductance of the second harmonic tuning circuit subunit into the second harmonic tuning circuit subunit, so that the second harmonic impedance value is 30*j ohm, and the third harmonic impedance is not affected (The adjustment of the low-order harmonic impedance does not affect the high-order harmonic impedance); and then adjusts the length of the feeder in the sub-unit of the adjustable fundamental tuning circuit, that is, the position of the point on the feeder (ie, the adjustable adjustable fundamental tuning circuit) The inductive component of the subunit is connected to the inductance of the adjustable fundamental tuning circuit unit, and finally the impedance matching of the third harmonic, the second harmonic and the fundamental impedance is completed. Of course, it is not limited to the impedance matching adjustment sequence of the above example in practical applications. The embodiment of the invention further provides an impedance matching device for matching the impedance between the first impedance circuit and the second impedance circuit, and the impedance matching device comprises:
基准阻抗匹配子单元、 可调基波调谐电路子单元和可调 N次谐波调谐 电路子单元， 上述 N为大于 1的自然数； a reference impedance matching subunit, an adjustable fundamental tuning circuit subunit, and an adjustable Nth harmonic tuning circuit subunit, wherein the above N is a natural number greater than one;
其中， 基准阻抗匹配子单元串联连接于第一阻抗电路和第二阻抗电路 之间； 上述可调基波调谐电路子单元和可调 N次谐波调谐电路子单元的一 端分别接地， 且上述可调基波调谐电路子单元和可调 N次谐波调谐电路子 单元串联和 /或并联连接后， 连接于上述基准阻抗匹配子单元的一端。 Wherein, the reference impedance matching subunit is connected in series between the first impedance circuit and the second impedance circuit; one end of the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are respectively grounded, and the above The fundamental wave tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are connected in series and/or in parallel, and are connected to one end of the reference impedance matching subunit.
其中， 上述基准阻抗匹配子单元和可调基波阻抗匹配子单元用于匹配 第一阻抗电路和第二阻抗电路之间的基波阻抗； 上述可调 N次谐波调谐电 路子单元用于匹配第一阻抗电路和第二阻抗电路之间的 N次谐波阻抗。 Wherein, the reference impedance matching subunit and the adjustable fundamental impedance matching subunit are used to match a fundamental impedance between the first impedance circuit and the second impedance circuit; and the adjustable Nth harmonic tuning circuit subunit is used for matching The Nth harmonic impedance between the first impedance circuit and the second impedance circuit.
在一种应用场景下，可调基波调谐电路子单元包括串联和 /或并联连接
的感性元件和容性元件； 上述可调 N次谐波调谐电路子单元包括串联和 / 或并联连接的感性元件和容性元件； 其中， 上述可调 N次谐波调谐电路子 单元中的容性元件的谐振频率为 N次谐波频率， 其感性元件为接入上述可 调 N次谐波调谐电路子单元中的电感量能够调节的感性元件； 上述可调基 波调谐电路子单元中的容性元件的谐振频率为基波频率， 其感性元件为接 入上述可调基波调谐电路子单元中的电感量能够调节的感性元件。 In one application scenario, the adjustable fundamental tuning circuit subunit includes series and/or parallel connections The inductive component and the capacitive component; the adjustable Nth harmonic tuning circuit subunit comprises an inductive component and a capacitive component connected in series and/or in parallel; wherein the capacitance in the adjustable Nth harmonic tuning circuit subunit The resonant frequency of the sexual component is the Nth harmonic frequency, and the inductive component is an inductive component capable of adjusting the inductance in the subunit of the adjustable Nth harmonic tuning circuit; in the adjustable fundamental tuning circuit subunit The resonant frequency of the capacitive component is the fundamental frequency, and the inductive component is an inductive component that can be adjusted by the inductance in the sub-unit of the adjustable fundamental tuning circuit.
在一种应用场景下， 上述可调基波调谐电路子单元包含的感性元件和 容性元件串联连接， 上述可调 N次谐波调谐电路子单元中包含的感性元件 和容性元件串联连接； 其中， 上述可调 N次谐波调谐电路子单元的感性元 件与可调基波调谐电路子单元的感性元件串联连接后连接于上述基准阻 抗匹配子单元的一端； 上述可调 N次谐波调谐电路子单元和可调基波调谐 电路子单元中的容性元件分别接地。 In an application scenario, the inductive component and the capacitive component included in the adjustable fundamental tuning circuit subunit are connected in series, and the inductive component and the capacitive component included in the adjustable Nth harmonic tuning circuit subunit are connected in series; The inductive component of the adjustable Nth harmonic tuning circuit subunit is connected in series with the inductive component of the adjustable fundamental tuning circuit subunit and is connected to one end of the reference impedance matching subunit; the adjustable Nth harmonic tuning The capacitive elements in the circuit subunit and the adjustable fundamental tuning circuit subunit are grounded, respectively.
在一种应用场景下， 阻抗匹配装置还可包括： 可调 N+m次谐波调谐电 路子单元和可调 N-n次谐波调谐电路子单元 （或者其中一个） ， 其中， 上 述可调 N+m次谐波调谐电路子单元和可调 N-n次谐波调谐电路子单元的感 性元件相互串联连接和 /或并联连接后，连接于上述基准阻抗匹配子单元的 一端； 其中， 上述 n为小于 N的自然数、 上述 m为自然数； 上述可调 N+m次 谐波调谐电路子单元用于匹配第一阻抗电路和第二阻抗电路之间的 N+m 次谐波阻抗； 上述可调 N-n次谐波调谐电路子单元用于匹配第一阻抗电路 和第二阻抗电路之间的 N-n次谐波阻抗。 In an application scenario, the impedance matching device may further include: an adjustable N+m harmonic tuning circuit subunit and an adjustable Nn harmonic tuning circuit subunit (or one of the), wherein the adjustable N+ The inductive components of the mth harmonic tuning circuit subunit and the adjustable Nn subharmonic tuning circuit subunit are connected to each other in series and/or in parallel, and are connected to one end of the reference impedance matching subunit; wherein, the above n is less than N The natural number, the above m is a natural number; the tunable N+m harmonic tuning circuit subunit is used to match the N+m harmonic impedance between the first impedance circuit and the second impedance circuit; The wave tuning circuit subunit is configured to match the Nn harmonic impedance between the first impedance circuit and the second impedance circuit.
在实际应用中， 感性元件可为微带线、 或带状线、 或金属连接线、 或 电感等； 容性元件可为微带线、 或带状线、 或电容等。 In practical applications, the inductive component can be a microstrip line, or a strip line, or a metal connection line, or an inductor, etc.; the capacitive element can be a microstrip line, or a strip line, or a capacitor.
可以理解， 本实施例中的第一阻抗电路和第二阻抗电路可以是任何需 要进行阻抗匹配的电路， 如放大器， 功率管或压控振荡器（VCO )等电路。 It can be understood that the first impedance circuit and the second impedance circuit in this embodiment may be any circuit that needs impedance matching, such as an amplifier, a power tube or a voltage controlled oscillator (VCO).
可以理解的是， 本实施例中的阻抗匹配装置的结构可以如上述实施例 中的阻抗匹配装置 30, 相关结构可参考上述实施例的相关描述。 It can be understood that the structure of the impedance matching device in this embodiment may be the impedance matching device 30 in the above embodiment. For the related structure, reference may be made to the related description of the above embodiment.
综上， 本发明实施例的阻抗匹配***中包括第一阻抗电路、 第二阻抗 电路和阻抗匹配装置， 其中， 由于分别是利用阻抗匹配装置中的基准阻抗 匹配子单元和可调基波调谐电路子单元对第一和第二阻抗电路之间的基
波阻抗进行匹配， 而利用阻抗匹配装置中的可调 N次谐波调谐电路子单元 对第一和第二阻抗电路之间的谐波阻抗进行匹配， 这样就实现了对基波阻 抗和谐波阻抗的分别匹配， 而基波阻抗和谐波阻抗的分别匹配有利于筒化 匹配过程， 筒化电路阻抗匹配的调试复杂度。 In summary, the impedance matching system of the embodiment of the present invention includes a first impedance circuit, a second impedance circuit, and an impedance matching device, wherein the reference impedance matching sub-unit and the adjustable fundamental wave tuning circuit in the impedance matching device are respectively utilized. Subunit pair of bases between the first and second impedance circuits The wave impedance is matched, and the harmonic impedance between the first and second impedance circuits is matched by the adjustable Nth harmonic tuning circuit subunit in the impedance matching device, thereby realizing the fundamental impedance and harmonics. The impedances are matched separately, and the respective matching of the fundamental impedance and the harmonic impedance is beneficial to the debugging complexity of the barrel matching process and the impedance matching of the barrel circuit.
同时， 可以通过调节感性元件的接入电感量， 从而改变阻抗匹配装置 的谐波阻抗或基波阻抗， 阻抗匹配过程筒易， 可操作性强。 At the same time, the harmonic impedance or the fundamental impedance of the impedance matching device can be changed by adjusting the access inductance of the inductive component, and the impedance matching process is easy and the operability is strong.
以上对本发明实施例所提供的阻抗匹配***和阻抗匹配装置， 进行了 述， 以上实施例的说明只是用于帮助理解本发明的方法及其核心思想； 同 时， 对于本领域的一般技术人员， 依据本发明的思想， 在具体实施方式及 应用范围上均会有改变之处， 综上， 本说明书内容不应理解为对本发明的 限制。
The impedance matching system and the impedance matching device provided by the embodiments of the present invention have been described above. The description of the above embodiments is only for helping to understand the method of the present invention and its core idea; and, for a person skilled in the art, The present invention is not limited by the scope of the present invention.
Claims
1、 一种阻抗匹配***， 其特征在于， 包括： An impedance matching system, comprising:
第一阻抗电路、 第二阻抗电路和阻抗匹配装置， a first impedance circuit, a second impedance circuit, and an impedance matching device,
所述阻抗匹配装置包括： 基准阻抗匹配子单元、 可调基波调谐电路子 单元和可调 N次谐波调谐电路子单元， 所述 N为大于 1的自然数； The impedance matching device includes: a reference impedance matching subunit, an adjustable fundamental tuning circuit subunit, and an adjustable Nth harmonic tuning circuit subunit, wherein the N is a natural number greater than 1;
所述基准阻抗匹配子单元串联连接于所述第一阻抗电路和第二阻抗 电路之间； 所述可调基波调谐电路子单元和可调 N次谐波调谐电路子单元 的一端分别接地， 且所述可调基波调谐电路子单元和可调 N次谐波调谐电 路子单元串联和 /或并联连接后， 连接于所述基准阻抗匹配子单元的一端； 其中， 所述基准阻抗匹配子单元和可调基波阻抗匹配子单元用于匹配 所述第一阻抗电路和第二阻抗电路之间的基波阻抗； 所述可调 N次谐波调 谐电路子单元用于匹配所述第一阻抗电路和第二阻抗电路之间的 N次谐波 阻抗。 The reference impedance matching subunit is connected in series between the first impedance circuit and the second impedance circuit; one end of the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are respectively grounded, And the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are connected in series and/or in parallel, and are connected to one end of the reference impedance matching subunit; wherein the reference impedance matching sub a unit and an adjustable fundamental impedance matching subunit for matching a fundamental impedance between the first impedance circuit and the second impedance circuit; the adjustable Nth harmonic tuning circuit subunit is configured to match the first The Nth harmonic impedance between the impedance circuit and the second impedance circuit.
2、 根据权利要求 1所述的阻抗匹配***， 其特征在于， 2. The impedance matching system of claim 1 wherein:
所述可调基波调谐电路子单元包括串联和 /或并联连接的感性元件和 容性元件； 所述可调 N次谐波调谐电路子单元包括串联和 /或并联连接的感 性元件和容性元件； 其中， 所述可调 N次谐波调谐电路子单元中的容性元 件的谐振频率为 N次谐波频率， 其感性元件为接入所述可调 N次谐波调谐 电路子单元中的电感量能够调节的感性元件； 所述可调基波调谐电路子单 元中的容性元件的谐振频率为基波频率， 其感性元件为接入所述可调基波 调谐电路子单元中的电感量能够调节的感性元件。 The adjustable fundamental tuning circuit subunit includes inductive components and capacitive components connected in series and/or in parallel; the adjustable Nth harmonic tuning circuit subunit includes inductive components and capacitively connected in series and/or in parallel The resonant frequency of the capacitive element in the adjustable Nth harmonic tuning circuit subunit is an Nth harmonic frequency, and the inductive component is connected to the adjustable Nth harmonic tuning circuit subunit An inductive component capable of being adjusted in an inductance; a resonant frequency of the capacitive component in the adjustable fundamental tuning circuit subunit is a fundamental frequency, and an inductive component is coupled to the subunit of the adjustable fundamental tuning circuit Inductive components with adjustable inductance.
3、 根据权利要求 1所述的阻抗匹配***， 其特征在于， 所述可调基波 调谐电路子单元包含的感性元件和容性元件串联连接， 所述可调 N次谐波 调谐电路子单元中包含的感性元件和容性元件串联连接； 3. The impedance matching system according to claim 1, wherein the tunable fundamental tuning circuit subunit comprises an inductive component and a capacitive component connected in series, the adjustable Nth harmonic tuning circuit subunit The inductive component and the capacitive component included in the series are connected in series;
其中， 所述可调 N次谐波调谐电路子单元的感性元件与可调基波调谐 电路子单元的感性元件串联连接后连接于所述基准阻抗匹配子单元的一 端； 所述可调 N次谐波调谐电路子单元和可调基波调谐电路子单元中的容 性元件分别接地。 The inductive component of the adjustable Nth harmonic tuning circuit subunit is connected in series with the inductive component of the adjustable fundamental tuning circuit subunit and is connected to one end of the reference impedance matching subunit; The capacitive elements in the harmonic tuning circuit subunit and the adjustable fundamental tuning circuit subunit are grounded, respectively.
4、 根据权利要求 1所述的阻抗匹配***， 其特征在于， 4. The impedance matching system of claim 1 wherein:
所述阻抗匹配装置还包括可调 N+m次谐波调谐电路子单元， The impedance matching device further includes an adjustable N+m harmonic tuning circuit subunit,
其中， 所述可调 N+m次谐波调谐电路子单元和所述可调 N次谐波调谐 电路子单元的感性元件相互串联连接和 /或并联连接后，连接于所述基准阻 抗匹配子单元的一端； 其中， 所述 m为自然数； 所述可调 N+m次谐波调谐 电路子单元用于匹配所述第一阻抗电路和第二阻抗电路之间的 N+m次谐 波阻抗。 The inductive components of the adjustable N+m harmonic tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are connected to each other in series and/or in parallel, and are connected to the reference impedance matching unit. One end of the unit; wherein the m is a natural number; the adjustable N+m harmonic tuning circuit subunit is configured to match the N+m harmonic impedance between the first impedance circuit and the second impedance circuit .
5、 根据权利要求 1所述的阻抗匹配***， 其特征在于， 5. The impedance matching system of claim 1 wherein:
所述感性元件为微带线、 或带状线、 或金属连接线、 或电感； 所述容性元件为微带线、 或带状线、 或电容。 The inductive element is a microstrip line, or a strip line, or a metal connection line, or an inductor; the capacitive element is a microstrip line, or a strip line, or a capacitor.
6、 根据权利要求 1至 5任一项所述的***， 其特征在于， 所述阻抗匹 配***为放大器， 或功率管， 或压控振荡器 VCO***。 6. System according to any one of claims 1 to 5, characterized in that the impedance matching system is an amplifier, or a power tube, or a voltage controlled oscillator VCO system.
7、 一种阻抗匹配装置， 用于匹配第一阻抗电路和第二阻抗电路之间 的阻抗， 其特征在于， 所述阻抗匹配装置包括： 7. An impedance matching device for matching an impedance between a first impedance circuit and a second impedance circuit, wherein the impedance matching device comprises:
基准阻抗匹配子单元、 可调基波调谐电路子单元和可调 N次谐波调谐 电路子单元， 所述 N为大于 1的自然数； a reference impedance matching subunit, an adjustable fundamental tuning circuit subunit, and an adjustable Nth harmonic tuning circuit subunit, wherein said N is a natural number greater than one;
所述基准阻抗匹配子单元串联连接于所述第一阻抗电路和第二阻抗 电路之间； 所述可调基波调谐电路子单元和可调 N次谐波调谐电路子单元 的一端分别接地， 且所述可调基波调谐电路子单元和可调 N次谐波调谐电 路子单元串联和 /或并联连接后， 连接于所述基准阻抗匹配子单元的一端； 其中， 所述基准阻抗匹配子单元和可调基波阻抗匹配子单元用于匹配 所述第一阻抗电路和第二阻抗电路之间的基波阻抗； 所述可调 N次谐波调 谐电路子单元用于匹配所述第一阻抗电路和第二阻抗电路之间的 N次谐波 阻抗。 The reference impedance matching subunit is connected in series between the first impedance circuit and the second impedance circuit; one end of the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are respectively grounded, And the adjustable fundamental tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are connected in series and/or in parallel, and are connected to one end of the reference impedance matching subunit; wherein the reference impedance matching sub a unit and an adjustable fundamental impedance matching subunit for matching a fundamental impedance between the first impedance circuit and the second impedance circuit; the adjustable Nth harmonic tuning circuit subunit is configured to match the first The Nth harmonic impedance between the impedance circuit and the second impedance circuit.
8、 根据权利要求 7所述的阻抗匹配装置， 其特征在于， 8. The impedance matching apparatus according to claim 7, wherein:
所述可调基波调谐电路子单元包括串联和 /或并联连接的感性元件和 容性元件； 所述可调 N次谐波调谐电路子单元包括串联和 /或并联连接的感 性元件和容性元件； 其中， 所述可调 N次谐波调谐电路子单元中的容性元 件的谐振频率为 N次谐波频率， 其感性元件为接入所述可调 N次谐波调谐 电路子单元中的电感量能够调节的感性元件； 所述可调基波调谐电路子单 元中的容性元件的谐振频率为基波频率， 其感性元件为接入所述可调基波 调谐电路子单元中的电感量能够调节的感性元件。 The adjustable fundamental tuning circuit subunit includes inductive components and capacitive components connected in series and/or in parallel; the adjustable Nth harmonic tuning circuit subunit includes inductive components and capacitively connected in series and/or in parallel The resonant frequency of the capacitive component in the adjustable Nth harmonic tuning circuit subunit is the Nth harmonic frequency, and the inductive component is connected to the adjustable Nth harmonic tuning An inductive component capable of being adjusted in an inductance of the circuit subunit; a resonant frequency of the capacitive component in the adjustable fundamental tuning circuit subunit is a fundamental frequency, and an inductive component is connected to the adjustable fundamental tuning circuit The inductive component of the subunit that can be adjusted in inductance.
9、 根据权利要求 7所述的阻抗匹配装置， 其特征在于， 所述可调基波 调谐电路子单元包含的感性元件和容性元件串联连接， 所述可调 N次谐波 调谐电路子单元中包含的感性元件和容性元件串联连接； 9. The impedance matching apparatus according to claim 7, wherein the inductive component and the capacitive component included in the adjustable fundamental tuning circuit subunit are connected in series, the adjustable Nth harmonic tuning circuit subunit The inductive component and the capacitive component included in the series are connected in series;
其中， 所述可调 N次谐波调谐电路子单元的感性元件与可调基波调谐 电路子单元的感性元件串联连接后连接于所述基准阻抗匹配子单元的一 端； 所述可调 N次谐波调谐电路子单元和可调基波调谐电路子单元中的容 性元件分别接地。 The inductive component of the adjustable Nth harmonic tuning circuit subunit is connected in series with the inductive component of the adjustable fundamental tuning circuit subunit and is connected to one end of the reference impedance matching subunit; The capacitive elements in the harmonic tuning circuit subunit and the adjustable fundamental tuning circuit subunit are grounded, respectively.
10、 根据权利要求 7至 9任一项所述的阻抗匹配装置， 其特征在于， 所 述阻抗匹配装置还包括： The impedance matching device according to any one of claims 7 to 9, wherein the impedance matching device further comprises:
可调 N+m次谐波调谐电路子单元， Adjustable N+m harmonic tuning circuit subunit,
其中， 所述可调 N+m次谐波调谐电路子单元和所述可调 N次谐波调 谐电路子单元的感性元件相互串联连接和 /或并联连接后，连接于所述基准 阻抗匹配子单元的一端； 其中， 所述 m为自然数； 所述可调 N+m次谐波 调谐电路子单元用于匹配所述第一阻抗电路和第二阻抗电路之间的 N+m 次谐波阻抗。 The inductive components of the adjustable N+m harmonic tuning circuit subunit and the adjustable Nth harmonic tuning circuit subunit are connected to each other in series and/or in parallel, and are connected to the reference impedance matching unit. One end of the unit; wherein the m is a natural number; the adjustable N+m harmonic tuning circuit subunit is configured to match the N+m harmonic impedance between the first impedance circuit and the second impedance circuit .
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| CN1417945A (en) * | 2001-11-05 | 2003-05-14 | 瑞昱半导体股份有限公司 | Impedance matching circuit |
| CN1773877A (en) * | 2004-11-08 | 2006-05-17 | 佛山市顺德区顺达电脑厂有限公司 | Impedance matching circuit of multi-frequency antenna |
| CN102355222A (en) * | 2011-06-17 | 2012-02-15 | 上海华为技术有限公司 | Impedance matching system and impedance matching device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4464919B2 (en) * | 2003-03-14 | 2010-05-19 | 株式会社エヌ・ティ・ティ・ドコモ | Matching circuit |
| JP2005341447A (en) * | 2004-05-31 | 2005-12-08 | Matsushita Electric Ind Co Ltd | High-frequency power amplifier |
| JP5102825B2 (en) * | 2009-01-30 | 2012-12-19 | 株式会社エヌ・ティ・ティ・ドコモ | Multiband matching circuit and multiband power amplifier |
| CN201726363U (en) * | 2010-04-30 | 2011-01-26 | 苏州英诺迅科技有限公司 | Circuit capable of improving linearity and power-added efficiency of power amplifier |
-
2011
- 2011-06-17 CN CN201110165188.1A patent/CN102355222B/en active Active
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2012
- 2012-06-18 WO PCT/CN2012/077092 patent/WO2012171505A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417945A (en) * | 2001-11-05 | 2003-05-14 | 瑞昱半导体股份有限公司 | Impedance matching circuit |
| CN1773877A (en) * | 2004-11-08 | 2006-05-17 | 佛山市顺德区顺达电脑厂有限公司 | Impedance matching circuit of multi-frequency antenna |
| CN102355222A (en) * | 2011-06-17 | 2012-02-15 | 上海华为技术有限公司 | Impedance matching system and impedance matching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102355222A (en) | 2012-02-15 |
| CN102355222B (en) | 2014-09-17 |
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