CN117176106A - Amplitude phase integrated regulation and control circuit based on resistance attenuation network - Google Patents
Amplitude phase integrated regulation and control circuit based on resistance attenuation network Download PDFInfo
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Abstract
The application provides an amplitude and phase integrated regulation circuit based on a resistance attenuation network, and relates to the technical field of regulation circuits. The application provides an amplitude-phase integrated regulation circuit based on a resistance attenuation network, which comprises a phase regulation network and a symmetrical resistance attenuation network, wherein the phase regulation network comprises a phase regulation switching tube and a phase regulation capacitor, the control end of the phase regulation switching tube is connected with a control signal, and the other two connection ends are respectively grounded and connected with the first end of the phase regulation capacitor; and the second end of the phase regulating capacitor is connected with the symmetrical position connecting end of the resistance attenuation network. Compared with the existing cascade amplitude and phase control system, the phase control system has the advantages that only the phase control switching tube and the capacitor element are added, the phase control function can be additionally realized under the condition that the size of the attenuation unit is kept unchanged, meanwhile, the integrated arrangement is realized, the circuit insertion loss is avoided, and the circuit efficiency is improved.
Description
Technical Field
The application relates to the technical field of regulation and control circuits, in particular to an amplitude and phase integrated regulation and control circuit based on a resistance attenuation network.
Background
The high-precision phase shifting and attenuation circuit is widely applied to electronic systems such as phased array systems, broadband electronic countermeasure systems and the like, the phase shifting and attenuation precision index directly influences the core performances such as beam scanning precision and the like, and the phase shifting and attenuation circuit influences the system cost to a great extent in transceiver systems such as large-scale phased arrays and the like.
The traditional passive phase shifting and attenuation circuits are respectively realized by adopting a high-low pass network and a resistor attenuation network in cascade, and although the high-precision phase shifting and attenuation characteristics are realized in a specific frequency band through parameter optimization, the phase shifting and attenuation circuit structure in the method cannot be reused, so that the circuit size is large, and the improvement of the circuit integration level is limited.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the application provides an amplitude-phase integrated regulation circuit based on a resistance attenuation network, which solves the technical problems of large phase shifting and attenuation circuit size in the prior art.
(II) technical scheme
In order to achieve the above purpose, the application is realized by the following technical scheme:
the application provides an amplitude and phase integrated regulation circuit based on a resistance attenuation network, which comprises a phase regulation network and a symmetrical resistance attenuation network;
wherein the phase regulation network comprises a phase regulation switch tube and a phase regulation capacitor, the first end of the phase regulation switch tube is grounded, the second end of the phase regulation switch tube is connected with the first end of the phase regulation capacitor,
the third end is connected with a control signal;
and the second end of the phase regulating capacitor is connected with the symmetrical position connecting end of the resistance attenuation network.
Preferably, the symmetrical resistive damping network comprises a pi-type resistive damping network or a bridge T-type resistive damping network.
Preferably, the pi-type resistance attenuation network comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first switching tube, a second switching tube and a third switching tube;
the first resistor and the third resistor have the same resistance, and the second resistor and the fourth resistor have the same resistance;
the first end and the second end of the second switch tube are respectively connected with the first ends of the first resistor and the second resistor;
the first end and the second end of the third switch tube are respectively connected with the first ends of the third resistor and the fourth resistor;
the second ends of the first resistor and the third resistor are connected with each other, and the connecting ends are symmetrical position connecting ends of the pi-type resistor attenuation network;
the second ends of the second resistor and the fourth resistor are grounded;
the first end of the first switch tube is connected with an input signal, and the second end of the first switch tube is connected with an output signal;
the third ends of the first switching tube, the second switching tube and the third switching tube are connected with control signals, wherein the control signals of the second switching tube and the third switching tube are connected in the same direction, and the control signals of the first switching tube, the second switching tube and the third switching tube are connected in opposite directions.
Preferably, in the amplitude regulation state, two different amplitude characteristics are realized by controlling the first switching tube, the second switching tube and the third switching tube;
when the control signal of the first switching tube is high, the first switching tube is conducted, the second switching tube is disconnected from the third switching tube, and the input signal is transmitted through the on state (low-resistance state) of the first switching tube;
when the control signal of the first switching tube is low, the second switching tube is conducted with the third switching tube, the first switching tube is disconnected, and the signal is transmitted through a pi-type resistor network consisting of the first resistor, the second resistor, the third resistor and the fourth resistor.
Preferably, in the phase regulation state, the phase regulation is realized by controlling a phase regulation switching tube;
when the control signal of the phase regulation switching tube is high, the phase regulation switching tube is conducted, and the phase regulation switching tube is equivalent to a resistor; the equivalent phase regulating capacitor is directly grounded after the phase regulating capacitor is connected with the resistor in series, and is in a phase reference state;
when the control signal of the phase regulation switching tube is low, the phase regulation switching tube is disconnected, and the phase regulation switching tube is equivalent to an off-state small capacitor; the phase regulating capacitor and the Guan Taixiao capacitor are connected with the ground in series and are in a phase shift state.
Preferably, the bridge T-shaped resistor attenuation network comprises a first switch tube, a second switch tube, a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor;
the first resistor and the third resistor have the same resistance, and the second resistor and the fourth resistor have the same resistance;
the first end of the first switch tube is connected with the second end of the first switch tube through the second resistor and the fourth resistor;
the first end of the first resistor is connected to the common end of the first switch tube and the second resistor, and the common end of the first resistor is connected with an input signal; the second end of the first resistor is connected with the first end of the third resistor, the second end of the third resistor is connected to the common end of the first switch tube and the fourth resistor, and the common end of the third resistor is connected with an output signal;
the connecting ends of the first resistor and the third resistor are symmetrical position connecting ends of a bridge T-shaped resistor attenuation network;
the first end of the second switching tube is connected to the connecting end of the second resistor and the fourth resistor; the second end of the second switching tube is grounded through a fifth resistor;
the third ends of the first switch tube and the second switch tube are connected with control signals, and the control signals connected with the first switch tube and the second switch tube are mutually reverse control signals.
(III) beneficial effects
The application provides an amplitude and phase integrated regulation circuit based on a resistance attenuation network. Compared with the prior art, the method has the following beneficial effects:
the application provides an amplitude-phase integrated regulation circuit based on a resistance attenuation network, which comprises a phase regulation network and a symmetrical resistance attenuation network, wherein the phase regulation network comprises a phase regulation switching tube and a phase regulation capacitor, the control end of the phase regulation switching tube is connected with a control signal, and the other two connection ends are respectively grounded and connected with the first end of the phase regulation capacitor; and the second end of the phase regulating capacitor is connected with the symmetrical position connecting end of the resistance attenuation network. Compared with the existing cascade amplitude and phase control system, the phase control system has the advantages that only the phase control switching tube and the capacitor element are added, the phase control function can be additionally realized under the condition that the size of the attenuation unit is kept unchanged, meanwhile, the integrated arrangement is realized, the circuit insertion loss is avoided, and the circuit efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of an amplitude-phase integrated regulation circuit based on a resistance attenuation network according to an embodiment of the present application;
FIG. 2 is a circuit diagram of an amplitude-phase integrated regulation circuit based on a pi-type resistance attenuation network according to an embodiment of the present application;
fig. 3a and fig. 3b are schematic diagrams illustrating amplitude regulation principles of an amplitude-phase integrated regulation circuit based on a pi-type resistance attenuation network according to an embodiment of the present application;
FIG. 4 is a simulation result of amplitude characteristics of an amplitude-phase integrated regulation circuit based on a pi-type resistance attenuation network according to an embodiment of the present application;
FIG. 5 is a simulation result of attenuation characteristics of an amplitude-phase integrated regulation and control circuit based on a pi-type resistance attenuation network according to an embodiment of the present application;
FIGS. 6a, 6b and 6c are schematic diagrams illustrating phase regulation in a reference state (non-attenuation state) of an amplitude-phase integrated regulation circuit based on a pi-type resistance attenuation network according to an embodiment of the present application;
FIG. 7 is a simulation result of the phase characteristics of an amplitude-phase integrated regulation circuit based on a pi-type resistance attenuation network according to an embodiment of the present application;
FIG. 8 is a simulation result of phase shifting characteristics of an amplitude-phase integrated regulation circuit based on a pi-type resistance attenuation network according to an embodiment of the present application;
fig. 9 is a circuit diagram of an amplitude-phase integrated regulation circuit based on a bridge T-type resistance attenuation network according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, for convenience of description, a switching MOSFET is used as a controllable (on and off) switching transistor in an embodiment of the present application, but the switching transistor in the present application is not limited to the MOSFET. The MOSFET is described as an example. The third end of the MOSFET is a control end, namely a grid electrode; the first end is a drain or a source, and the second end is a drain or a source, that is, in the embodiment of the present application, the circuits connected by the drain and the source of the switching tube can be interchanged, without being affected. The control end of each switching tube in the embodiment of the application applies a driving control signal. For brevity, the description is omitted. The power switch tube in the embodiment of the application can also be realized by adopting other controllable switch tube devices besides MOSFETs, such as IGBT.
The embodiment of the application solves the technical problems of large size of a phase shifting and attenuating circuit in the prior art by providing the amplitude-phase integrated regulating circuit based on the resistance attenuation network, and only adds the phase regulating switch tube and the capacitor element on the basis of the resistance attenuation network unit, thereby realizing the additional realization of the phase regulating function under the condition that the size of the attenuation unit is kept unchanged.
The technical scheme in the embodiment of the application aims to solve the technical problems, and the overall thought is as follows:
the cascade connection of the high-low pass network and the resistance attenuation network can realize high-precision phase shifting and attenuation characteristics in a specific frequency band through parameter optimization, but has the following defects: 1. the phase-shifting attenuation circuit structure cannot be reused, so that the circuit size is large, and the improvement of the circuit integration level is limited; 2. the phase shifting and attenuation circuit cascade connection is needed in the amplitude-phase control system, so that the circuit insertion loss is increased, and the circuit efficiency is reduced. In order to solve the above problems, the embodiment of the application provides adding a phase regulation sub-circuit in a traditional pi-type or bridge T-type resistor attenuation network unit, and additionally realizing a phase modulation function under the condition of keeping the attenuation performance and the circuit size of the attenuation circuit unit basically unchanged.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
The embodiment of the application provides an amplitude-phase integrated regulation circuit based on a resistance attenuation network, which is shown in fig. 1, and comprises a phase regulation network and a symmetrical resistance attenuation network, wherein the phase regulation network comprises a phase regulation switching tube and a phase regulation capacitor, the control end of the phase regulation switching tube is connected with a control signal, and the other two connection ends are respectively grounded and connected with the first end of the phase regulation capacitor; and the second end of the phase regulating capacitor is connected with the symmetrical position connecting end of the resistance attenuation network.
Compared with the existing cascade amplitude and phase control system, the embodiment of the application only adds the phase regulation switching tube and the capacitor element, can additionally realize the phase regulation function under the condition that the size of the attenuation unit is kept unchanged, and meanwhile, the integrated arrangement avoids circuit insertion loss and improves circuit efficiency.
In an implementation, the resistive damping network includes a pi-type or bridge T-type resistive damping network. As shown in fig. 2, disclosed is an amplitude-phase integrated regulation circuit based on a pi-type resistance attenuation network, in the integrated regulation circuit, a gate of a phase regulation switching tube M0 of the phase regulation network is connected with a control signal V0, a drain of the phase regulation switching tube M0 is grounded, a source of the phase regulation switching tube M0 is connected with a first end of a phase regulation capacitor C0, and a second end of the phase regulation switching tube C0 is connected with a symmetrical position connection end of the pi-type resistance attenuation network. It should be noted that, in the implementation process, the connection manner of the source electrode and the drain electrode of M0 may be interchanged, that is, the drain electrode is connected to C0, and the source electrode is grounded.
The pi-type resistance attenuation network comprises two groups of symmetrical circuit modules and a first switching tube M1; the two groups of symmetrical circuit modules respectively comprise two resistors and a switching tube, the drain electrode and the source electrode of the second switching tube M2 are respectively connected with the first ends of the first resistor R1 and the fifth resistor R5, and the drain electrode and the source electrode of the third switching tube M3 are respectively connected with the first ends of the R3 and the R4. The second ends of the first resistor R1 and the third resistor R3 are connected with each other, the connecting ends are symmetrical position connecting ends of the pi-type resistor attenuation network, and the second ends of the second resistor and the fourth resistor are grounded. The second switching tube and the third switching tube are connected by control signals in the same direction.
The source electrode of the first switch tube M1 is connected with an input signal, the drain electrode is connected with an output signal, and the grid electrode is connected with a control signal. The first switching tube M1 is connected with the second switching tube M2 and the third switching tube M3 by control signals which are mutually opposite.
R1 and R3 have the same resistance, R2 and R4 have the same resistance
The amplitude regulation principle of the amplitude-phase integrated regulation circuit based on the pi-type resistance attenuation network shown in fig. 2 is as shown in fig. 3a and 3 b:
as shown in fig. 3a, vc andthe first switching transistors M1 are turned on and M2 and M3 are turned off when the Vc signal is high, and the signal is transmitted via the low-resistance state of the M1 on state, and the transmission state is defined as an amplitude reference state (not attenuation), that is, the transmission parameter S21 (vc=1).
As shown in fig. 3b, when the Vc signal is low, the switching transistors M2 and M3 are turned on and M1 are turned off, and the signal is transmitted through the pi-type resistor attenuation network formed by R1, R2, R3, and R4, and the transmission state is defined as an attenuation state, that is, the transmission parameter s21' (vc=0).
The reference state and the attenuation state have different amplitude characteristics under the two transmission states, and specific amplitude difference values can be realized, namely amplitude modulation is realized. In the simulation design, parameters r1=20Ω, r2=220Ω, c0=120ff, a gate length of transistor M1 of 60nm, a gate width of 10um, a gate length of transistors M1 and M2 of 60nm, a gate width of 4um are set, and as a result of attenuation simulation, referring to fig. 4 and fig. 5, it can be seen from fig. 5 that attenuation values are near 4dB in two transmission states of v0=0 and v0=1, so that the state of the phase regulation network is not affected.
The phase regulation principle of the amplitude-phase integrated regulation circuit based on the pi-type resistance attenuation network shown in fig. 2 is as shown in fig. 6a, 6b and 6 c:
as shown in fig. 6a, when V0 is high, the switching tube M0 is turned on, and the switching tube M0 is equivalent to a small resistor RM0, and after the phase adjusting capacitor C0 is connected in series with the on equivalent resistor RM0 of the switching tube M0, the phase adjusting capacitor C0 can be approximately C0 to be directly grounded, and the equivalent grounding capacitance is large, and at this time, the transmission state is defined as a phase reference state (not shifting phase), that is, the transmission parameter s21 (vc=1, v0=1).
As shown in fig. 6b, when V0 is low, the switching tube M0 is in an off state, and the switching tube M0 is equivalent to the off state small capacitor CM0, the capacitance value of the phase adjusting capacitor C0 and the off state equivalent capacitor CM0 of the switching tube M0 connected in series is small, the equivalent ground capacitance value is small, and the transmission state is defined as a phase shift state, i.e., the transmission parameter S21 (vc=1, v0=0).
As shown in fig. 6 c; in both transmission states, a specific phase difference value, i.e. a phase modulation, can be achieved.
Based on the simulation parameter setting in the amplitude regulation principle, the simulation result shows that the amplitude phase integrated regulation circuit based on the pi-type resistance attenuation network can realize 10-degree phase regulation within the range of 32-38 GHz. As a result of the phase shift, referring to fig. 7 and 8, it can be seen from fig. 8 that the phase shift values are all around 10 ° in two transmission states of vc=0 and vc=1, and it is explained that the state of the amplitude adjusting unit circuit does not affect the phase shift characteristics.
As shown in fig. 9. The amplitude-phase integrated regulation and control circuit based on the bridge T-shaped resistance attenuation network provided by the embodiment of the application is consistent with the principle of the amplitude-phase integrated regulation and control circuit based on the pi-shaped resistance attenuation network, and can realize the same function.
The first resistor R11 and the third resistor R21 have the same resistance, and the second resistor R10 and the fourth resistor R20 have the same resistance.
In the circuit, a phase regulation network comprises a phase regulation switching tube and a phase regulation capacitor, wherein the control end of the phase regulation switching tube is connected with a control signal, and the other two connecting ends are respectively grounded and connected with the first end of the phase regulation capacitor; and the second end of the phase regulating capacitor is connected with the symmetrical position connecting end of the bridge T-shaped resistance attenuation network.
The bridge T-shaped resistor attenuation network comprises a first switching tube M1, a second switching tube M2, a first group of symmetrical resistors R11 and R21, a second group of symmetrical resistors R10 and R20 and a fifth resistor R5.
The gate of the first switching tube M1 and the gate of the second switching tube M2 are connected with control signals in opposite directions.
The first end of the first switching tube M1 is connected to the second end of the first switching tube M1 via resistors R10, R20.
The first end of the resistor R11 is connected to the common end of the M1 and the R10, and the common end is connected with an input signal; the second terminal of the resistor R11 is connected to the first terminal of the resistor R21, the second terminal of the resistor R21 is connected to the common terminal of the M1 and R20, and the common terminal is connected to the output signal.
The connection end of the resistor R11 and the resistor R21 is a symmetrical position connection end of the bridge T-shaped resistor attenuation network.
The first end of the second switching tube M2 is connected to the connecting end of the resistor R10 and the resistor R20; the second end of the second switching tube M2 is grounded via a fifth resistor R5.
In summary, compared with the prior art, the method has the following beneficial effects:
1. compared with the existing cascade amplitude and phase control system, the phase control system is added, the phase control network only comprises the phase control switching tube and the capacitor element, the phase control network is connected to the symmetrical position connection end of the resistor attenuation network, the performance of signals is consistent when the original circuit is transmitted in the forward direction or the reverse direction, the phase control function can be additionally realized under the condition that the size of the attenuation unit is unchanged, meanwhile, the integrated arrangement is realized, the circuit insertion loss is avoided, and the circuit efficiency is improved.
2. In the phase regulation state, the amplitude parasitic value caused by changing the phase regulation switching tube is smaller, so that the integrated circuit of the embodiment of the application keeps lower amplitude parasitic in the phase regulation process.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (6)
1. An amplitude and phase integrated regulation and control circuit based on a resistance attenuation network is characterized by comprising a phase regulation and control network and a symmetrical resistance attenuation network;
the phase regulation network comprises a phase regulation switch tube and a phase regulation capacitor, wherein the first end of the phase regulation switch tube is grounded, the second end of the phase regulation switch tube is connected with the first end of the phase regulation capacitor, and the third end of the phase regulation switch tube is connected with a control signal;
and the second end of the phase regulating capacitor is connected with the symmetrical position connecting end of the resistance attenuation network.
2. The amplitude phase integrated regulation circuit based on a resistive damping network of claim 1, wherein the symmetrical resistive damping network comprises a pi-type resistive damping network or a bridge T-type resistive damping network.
3. The amplitude-phase integrated regulation and control circuit based on a resistance attenuation network according to claim 2, wherein the pi-type resistance attenuation network comprises a first resistance, a second resistance, a third resistance, a fourth resistance, a first switching tube, a second switching tube and a third switching tube;
the first resistor and the third resistor have the same resistance, and the second resistor and the fourth resistor have the same resistance;
the first end and the second end of the second switch tube are respectively connected with the first ends of the first resistor and the second resistor;
the first end and the second end of the third switch tube are respectively connected with the first ends of the third resistor and the fourth resistor;
the second ends of the first resistor and the third resistor are connected with each other, and the connecting ends are symmetrical position connecting ends of the pi-type resistor attenuation network;
the second ends of the second resistor and the fourth resistor are grounded;
the first end of the first switch tube is connected with an input signal, and the second end of the first switch tube is connected with an output signal;
the third ends of the first switching tube, the second switching tube and the third switching tube are connected with control signals, wherein the control signals of the second switching tube and the third switching tube are connected in the same direction, and the control signals of the first switching tube, the second switching tube and the third switching tube are connected in opposite directions.
4. The amplitude-phase integrated regulation circuit based on a resistance attenuation network according to claim 3, wherein in an amplitude regulation state, two different amplitude characteristics are realized by controlling the first switching tube, the second switching tube and the third switching tube;
when the control signal of the first switching tube is high, the first switching tube is conducted, the second switching tube is disconnected from the third switching tube, and the input signal is transmitted through the on-state low-resistance state of the first switching tube;
when the control signal of the first switching tube is low, the second switching tube is conducted with the third switching tube, the first switching tube is disconnected, and the signal is transmitted through a pi-type resistor network consisting of the first resistor, the second resistor, the third resistor and the fourth resistor.
5. The amplitude-phase integrated regulation and control circuit based on a resistance attenuation network according to claim 3, wherein in a phase regulation and control state, phase regulation and control are realized by controlling a phase regulation and control switching tube;
when the control signal of the phase regulation switching tube is high, the phase regulation switching tube is conducted, and the phase regulation switching tube is equivalent to a resistor; the equivalent phase regulating capacitor is directly grounded after the phase regulating capacitor is connected with the resistor in series, and is in a phase reference state;
when the control signal of the phase regulation switching tube is low, the phase regulation switching tube is disconnected, and the phase regulation switching tube is equivalent to an off-state small capacitor; the phase regulating capacitor and the Guan Taixiao capacitor are connected with the ground in series and are in a phase shift state.
6. The amplitude-phase integrated regulation and control circuit based on a resistance attenuation network according to claim 2, wherein the bridge T-type resistance attenuation network comprises a first switch tube, a second switch tube, a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor;
the first resistor and the third resistor have the same resistance, and the second resistor and the fourth resistor have the same resistance;
the first end of the first switch tube is connected with the second end of the first switch tube through the second resistor and the fourth resistor;
the first end of the first resistor is connected to the common end of the first switch tube and the second resistor, and the common end of the first resistor is connected with an input signal; the second end of the first resistor is connected with the first end of the third resistor, the second end of the third resistor is connected to the common end of the first switch tube and the fourth resistor, and the common end of the third resistor is connected with an output signal;
the connecting ends of the first resistor and the third resistor are symmetrical position connecting ends of a bridge T-shaped resistor attenuation network;
the first end of the second switching tube is connected to the connecting end of the second resistor and the fourth resistor; the second end of the second switching tube is grounded through a fifth resistor;
the third ends of the first switch tube and the second switch tube are connected with control signals, and the control signals connected with the first switch tube and the second switch tube are mutually reverse control signals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311266978.8A CN117176106A (en) | 2023-09-27 | 2023-09-27 | Amplitude phase integrated regulation and control circuit based on resistance attenuation network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311266978.8A CN117176106A (en) | 2023-09-27 | 2023-09-27 | Amplitude phase integrated regulation and control circuit based on resistance attenuation network |
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| CN110830001A (en) * | 2019-11-20 | 2020-02-21 | 南京汇君半导体科技有限公司 | Ultra-wideband attenuator |
| CN113114162A (en) * | 2021-03-24 | 2021-07-13 | 中国电子科技集团公司第三十八研究所 | Attenuator circuit for CMOS broadband amplitude-phase multifunctional chip |
| CN114172488A (en) * | 2021-11-08 | 2022-03-11 | 北京无线电测量研究所 | Numerical control attenuator with low additional phase shift |
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- 2023-09-27 CN CN202311266978.8A patent/CN117176106A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427781A (en) * | 2013-08-31 | 2013-12-04 | 西安电子科技大学 | Silicone substrate high-linearity low-phase-shift ultra-broad-band digital attenuator |
| CN110380708A (en) * | 2019-06-10 | 2019-10-25 | 浙江大学 | A kind of ultra wide band width mutually compensates digital switch attenuator circuit |
| CN110830001A (en) * | 2019-11-20 | 2020-02-21 | 南京汇君半导体科技有限公司 | Ultra-wideband attenuator |
| CN113114162A (en) * | 2021-03-24 | 2021-07-13 | 中国电子科技集团公司第三十八研究所 | Attenuator circuit for CMOS broadband amplitude-phase multifunctional chip |
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