CN110957987A - Ultra-wideband adjustable phase-shifting unit loaded with sector line reflection load and phase shifter - Google Patents
Ultra-wideband adjustable phase-shifting unit loaded with sector line reflection load and phase shifter Download PDFInfo
- Publication number
- CN110957987A CN110957987A CN201911385491.5A CN201911385491A CN110957987A CN 110957987 A CN110957987 A CN 110957987A CN 201911385491 A CN201911385491 A CN 201911385491A CN 110957987 A CN110957987 A CN 110957987A
- Authority
- CN
- China
- Prior art keywords
- ultra
- phase
- wideband
- adjustable phase
- loaded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 101000633089 Homo sapiens Transient receptor potential cation channel subfamily V member 2 Proteins 0.000 description 22
- 230000010363 phase shift Effects 0.000 description 21
- 238000010586 diagram Methods 0.000 description 16
- 102100029621 Transient receptor potential cation channel subfamily V member 2 Human genes 0.000 description 15
- 238000004088 simulation Methods 0.000 description 12
- 102100032401 Charged multivesicular body protein 2a Human genes 0.000 description 8
- 101000943253 Homo sapiens Charged multivesicular body protein 2a Proteins 0.000 description 8
- 102100024827 Dynamin-1-like protein Human genes 0.000 description 7
- 101000909218 Homo sapiens Dynamin-1-like protein Proteins 0.000 description 7
- 102000003565 TRPV2 Human genes 0.000 description 7
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- 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
- H03H7/18—Networks for phase shifting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
- H01P1/185—Phase-shifters using a diode or a gas filled discharge tube
Landscapes
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention discloses an ultra-wideband adjustable phase-shifting unit and a phase shifter for loading sector line reflection loads, wherein the ultra-wideband adjustable phase-shifting unit comprises: an input node, an output node, and a quadrature coupler; wherein the input node for receiving the signal to be phase-shifted is connected with the input end of the orthogonal coupler; wherein the output node of the output phase-shifted signal is connected with the isolation end of the orthogonal coupler; the straight-through end and the coupling end of the orthogonal coupler are respectively connected with a single-port variable reflection type load unit. The invention adopts the reflective phase-shifting circuit framework of the orthogonal coupler, can realize good input and output standing wave characteristics in an octave range, further has a larger phase-shifting range and lower additional amplitude variation in an ultra-wideband range, and greatly reduces the problem of circuit consistency caused by process fluctuation in production.
Description
Technical Field
The invention relates to the technical field of phase shifters, in particular to an ultra-wideband adjustable phase shifting circuit.
Background
The variable phase-shifting circuit is widely applied to radar signal simulators, signal generators, phased array systems, electronic countermeasure systems, communication systems and the like, and realizes control over signal phases.
For ultra-wideband system applications, such as emerging 5G millimeter wave frequency bands, the frequency band is basically within the octave frequency range of 24-45GHz domestically; aiming at the ultra-wideband application of more than octave, the frequency band coverage range of the variable phase shifter circuit is insufficient, the additional amplitude change is too large, the application of the variable phase shifter circuit in a wideband system is limited, or the complexity of the application system is increased.
Therefore, how to make the adjustable phase shifter circuit have better input-output standing wave characteristics, how to further make the adjustable phase shifter circuit have a larger phase shift range and lower phase shift additional amplitude fluctuation, and even still have high consistency and temperature stability, so as to greatly simplify or even save the calibration work of an application system, and reduce the complexity of the application system, and the problem is worthy of further research and solution.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the defects in the prior art, one of the purposes of the invention is to provide an ultra-wideband adjustable phase-shifting unit loaded with a sector line reflection load; another object of the present invention is to provide an ultra-wideband adjustable phase shifter loaded with sector line reflective loads.
The technical scheme is as follows: in order to solve the above technical problem, the present invention provides an ultra-wideband adjustable phase shift unit for loading a sector line reflective load, comprising: an input node, an output node, and a quadrature coupler;
wherein the input node for receiving the signal to be phase-shifted is connected with the input end of the orthogonal coupler;
wherein the output node of the output phase-shifted signal is connected with the isolation end of the orthogonal coupler;
the straight-through end and the coupling end of the orthogonal coupler are respectively connected with a single-port variable reflection type load unit.
Preferably, each single-port variable reflection type load unit is formed by cascading a two-port first series reactance element, a two-port parallel fan-shaped line ultra-wideband matching circuit and a single-port series grounded tunable capacitive device.
Preferably, the ultra-wideband matching circuit with the two ports connected with the sector lines in parallel is mainly formed by sequentially cascading N-stage matching unit circuits, wherein N is more than or equal to 1; each stage of matching unit circuit is mainly formed by cascading a parallel fan-shaped line circuit and a second series reactance element, and each stage of matching unit circuit comprises more than one parallel fan-shaped line circuit.
Preferably, the first series reactance element and the second series reactance element are inductance elements or transmission lines in a series structure.
Preferably, the tunable capacitive device is a diode or a triode with a source and a drain connected with each other.
Preferably, the single-port variable reflective load unit is a sector line loaded variable reflective load unit.
Further preferably, the circuit further comprises a first bias resistor, one end of which is connected with the through end of the orthogonal coupler, and the other end of which is connected with the external power supply, and a second bias resistor, one end of which is connected with the coupling end of the orthogonal coupler, and the other end of which is connected with the external power supply.
The invention also provides a phase shifter: the phase-shifting device is mainly formed by sequentially cascading a plurality of stages of ultra-wideband adjustable phase-shifting units loaded with sector line reflection loads; and the output nodes of the ultra-wideband adjustable phase-shifting units loaded with the sector line reflection loads are connected with the input nodes of the ultra-wideband adjustable phase-shifting units loaded with the sector line reflection loads at the next stage adjacent to the output nodes of the ultra-wideband adjustable phase-shifting units loaded with the sector line reflection loads, so that multistage cascade connection is realized.
Preferably, the output node of the ultra-wideband adjustable phase-shifting unit loaded with the sector line reflective load at each stage is connected with the input node of the ultra-wideband adjustable phase-shifting unit loaded with the sector line reflective load at the next stage adjacent to the output node of the ultra-wideband adjustable phase-shifting unit loaded with the sector line reflective load at each stage through a transmission line.
The invention also provides another phase shifter: the phase-shifting device is mainly formed by sequentially cascading a plurality of stages of ultra-wideband adjustable phase-shifting units loaded with sector line reflection loads; the isolation end of the orthogonal coupler in the ultra-wideband adjustable phase-shifting unit loaded with the sector line reflection load is connected with the input end of the orthogonal coupler in the next-stage ultra-wideband adjustable phase-shifting unit loaded with the sector line reflection load, so that multistage cascade connection is realized.
Has the advantages that: compared with the prior art, the ultra-wideband adjustable phase shifting unit and the phase shifter loaded with the sector line reflection load have the advantages that:
(1) by adopting a reflective phase-shifting circuit architecture of the orthogonal coupler, good input and output standing wave characteristics can be realized in an octave range;
(2) furthermore, a reflection type phase shifter loaded with a sector line reflection load is adopted, and a load structure of a sector line matching unit circuit is loaded in a single-port variable reflection type load unit, so that large dynamic range phase shifting can be realized in an octave frequency range, and the characteristics of low insertion loss and low additional amplitude change are realized, namely, a large phase shifting range and low additional amplitude change are realized in an ultra-wideband range;
(3) the load structure of the loaded fan-shaped line matching unit circuit does not contain lumped capacitance elements, and the problem of circuit consistency caused by process fluctuation in production can be greatly reduced.
(4) Furthermore, the phase shifter is formed by cascading ultra-wideband adjustable phase shifting units loaded with sector line reflection loads in multiple stages, ultra-wideband 360-degree phase shifting is achieved, even more than 360-degree phase shifting is achieved, good standing wave characteristics and low additional amplitude change characteristics can be still maintained, the structure is reasonable and ingenious, flexible expansion can be achieved according to needs, and the phase shifter can be widely applied.
Drawings
Fig. 1 is a schematic circuit structure diagram of an ultra-wideband adjustable phase-shifting unit provided by the invention;
fig. 2 is a schematic circuit diagram of an ultra-wideband adjustable phase-shifting unit according to an embodiment;
FIG. 3 is an enlarged schematic diagram of the circuit structure of the single-port variable reflective load unit in FIG. 2;
fig. 4 is a schematic circuit diagram of a phase shifter formed by cascading two stages of the ultra-wideband adjustable phase shifting units shown in fig. 2 according to an embodiment;
FIG. 5 is a schematic diagram of a simulation result of return loss of the ultra-wideband adjustable phase-shifting unit circuit provided in FIG. 2;
FIG. 6 is a schematic diagram of a simulation result of the phase shift characteristic of the ultra-wideband adjustable phase shift unit circuit provided in FIG. 2;
FIG. 7 is a schematic diagram of a simulation result of additional amplitude variation of the ultra-wideband adjustable phase-shifting unit circuit provided in FIG. 2;
FIG. 8 is a diagram illustrating simulation results of insertion loss of the ultra-wideband adjustable phase-shifting unit circuit provided in FIG. 2;
FIG. 9 is a diagram illustrating simulation results of return loss of the two-stage cascaded phase shifter circuit provided in FIG. 4;
FIG. 10 is a diagram illustrating simulation results of phase shifting characteristics of the two-stage cascaded phase shifter circuit provided in FIG. 4;
FIG. 11 is a graph illustrating simulation results of additional amplitude variation of the two-stage cascaded phase shifter circuit provided in FIG. 4;
fig. 12 is a diagram showing simulation results of insertion loss of the two-stage cascaded phase shifter circuit provided in fig. 4.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited to the following examples.
The structural schematic diagram of the ultra-wideband adjustable phase shifting unit loaded with the sector line reflection load provided by the invention is shown in fig. 1, and the ultra-wideband adjustable phase shifting unit comprises: an input node P11, an output node P12, and a quadrature coupler CP 1; wherein the input node P11 receiving the signal to be phase shifted is connected to the input IN of the quadrature coupler; wherein the output node P12 for outputting the phase-shifted signal is connected with the isolation end ISO of the orthogonal coupler; the through end THR of the quadrature coupler is connected to a single-port variable reflective load cell VRL1, and the coupling end COU of the quadrature coupler is connected to a single-port variable reflective load cell VRL 1'.
In some embodiments, the single-port variable reflective load unit is a sector line loaded variable reflective load unit.
In some embodiments, each of the single-port variable reflection load units is formed by cascading a two-port first series reactance element, a two-port parallel fan-shaped ultra-wideband matching circuit, and a single-port series-grounded tunable capacitive device. Specifically, the single-port variable reflection type load unit VRL1 connected to the through terminal THR of the quadrature coupler is formed by cascading a two-port first series reactance element TL1, an ultra-wideband matching circuit with a two-port parallel fan-shaped line, and a single-port series-grounded tunable capacitive device VD 1; the single-port variable reflection load unit VRL1 ' connected to the coupling terminal COU of the quadrature coupler is formed by cascading a two-port first series reactive element TL1 ', a two-port parallel fan-shaped line ultra-wideband matching circuit, and a single-port series-grounded tunable capacitive device VD1 '.
As shown in FIG. 1, the ultra-wideband matching circuit with two parallel-connected fan-shaped lines at two ports in each single-port variable reflection type load unit is formed by sequentially cascading N-stage matching unit circuits, wherein N is more than or equal to 1; each stage of matching unit circuit is formed by cascading a parallel fan-shaped line circuit and a second series reactance element, and each stage of matching unit circuit comprises more than one parallel fan-shaped line circuit.
As shown in figure 1, in a single-port variable reflection type load unit VRL1 connected with a straight-through end THR of an orthogonal coupler, an ultra-wideband matching circuit with two ports connected with a fan-shaped line in parallel is formed by sequentially cascading N-level matching unit circuits MN _ i, wherein N is more than or equal to 1, and i is more than or equal to 1 and less than or equal to N. Each stage of matching unit circuit MN _ i is formed by cascading a parallel fan-shaped line circuit RSB _1i and a second series reactance element L1i, and each stage of matching unit circuit MN _ i includes more than one parallel fan-shaped line circuit RSB _1 i. In a single-port variable reflection type load unit VRL1 'connected with a coupling end COU of an orthogonal coupler, an ultra-wideband matching circuit with two ports connected with sector lines in parallel is formed by sequentially cascading N-level matching unit circuits MN _ i', wherein N is more than or equal to 1, and i is more than or equal to 1 and less than or equal to N. Each stage of matching unit circuit MN _ i ' is formed by cascading a parallel fan-shaped line circuit RSB _1i ' and a second series reactance element L1i ', and each stage of matching unit circuit MN _ i ' includes more than one parallel fan-shaped line circuit RSB _1i '. Each stage of matching unit circuit MN _ i shown in fig. 1 includes 2 parallel fan-shaped line circuits, which are only examples, and may be flexibly adjusted according to needs in practice, the number of parallel fan-shaped lines of each stage of matching unit circuit may be one or multiple, and the number of parallel fan-shaped lines of each stage of matching unit circuit may be the same or different.
Each series reactance element in this embodiment includes a first series reactance element and a second series reactance element, and may be implemented by an inductance element in a series structure or by a transmission line in a series structure.
The tunable capacitive device in this embodiment may be implemented by a diode, or a triode with a source connected to a drain.
Fig. 2 shows a schematic circuit structure diagram of an embodiment of the present invention, in which M is 1, that is, each single-port variable reflection load unit is formed by cascading a two-port first series reactance element, an ultra-wideband matching circuit with a two-port parallel sector line, and a single-port series-grounded tunable capacitive device; the ultra-wideband matching circuit with two parallel fan-shaped lines connected with two ports in each single-port variable reflection type load unit only comprises a 1-stage matching unit circuit; and the matching unit circuit of the stage is formed by cascading 1 parallel fan-shaped line circuit and 1 second series reactance element. In particular, in the embodiment, the ultra-wideband phase-shift unit circuit comprises a 90-degree quadrature coupler CP1 and a single-port variable reflection type load unit VRL 1; the orthogonal coupler CP1 has an input end IN, a straight-through end THR, a coupling end COU and an isolation end ISO; wherein, the input terminal IN is used for receiving signals and is connected with an input node P11 for receiving signals to be phase-shifted; the isolation end ISO is used for outputting a phase-shifted signal and is connected with an output node P12; the straight-through end THR is connected with a single-port variable reflection type load unit VRL 1; the coupling terminal COU is connected to the single-port variable reflective load unit VRL 1'. The single-port variable reflective load unit VRL1 includes a variable capacitive element VD1, 1 2-port matching unit circuits MN _1, and a first series reactive element TL1, and the single-port variable reflective load unit VRL1 'includes a variable capacitive element VD 1', 1 2-port matching unit circuits MN _1 ', and a first series reactive element TL 1'.
The tunable capacitive devices described herein may also be referred to as variable capacitive elements. The variable reflective load units described herein may also be referred to as variable reflective load units, or variable reflective load units. The ultra-wideband adjustable phase shifting unit loaded with the sector line reflection load may also be referred to as an ultra-wideband adjustable phase shifting circuit loaded with the sector line reflection load, and may also be referred to as an ultra-wideband adjustable phase shifter unit or an ultra-wideband adjustable phase shifter circuit.
Here, the structure and operation principle of the single-port variable reflective load unit are illustrated by taking the single-port variable reflective load unit VRL1 in one embodiment shown in fig. 2 as an example, and as can be seen from the enlarged schematic structural diagram shown in fig. 3, the sector line loaded variable reflective load unit VRL1 includes: the ultra-wideband matching circuit with two ports connected with a sector line in parallel and composed of the first series reactance element TL1 and the primary matching unit circuit MN _1 and the tunable capacitive device VD1 are grounded and are sequentially cascaded. In this embodiment, a series inductive element is used as the first series reactive element TL1, and the series inductive element is implemented by a transmission line having a characteristic impedance and an electrical length (Z0_ TL1, TH _ TL1), respectively. In this embodiment, a variable capacitance diode is used as a variable capacitive element, i.e., the tunable capacitive device VD1, to provide tuning of the variable capacitance value. One end of a first bias resistor Rb1 (3000 ohms in the embodiment) with a larger resistance value is connected with a through end THR of the orthogonal coupler, and the other end of the first bias resistor Rb1 is connected with an external power supply Vc; vc is used to provide a bias voltage to the variable capacitance diode VD1 to control the capacitance value of VD 1. The variable capacitance diode VD1 serving as a tunable capacitive device/variable capacitive element in this embodiment has an index of NoF1 and a length of Len1, and the HBT process is adopted in this embodiment, and the varactor diode is implemented by the HBT process. Generally, the capacitance variation range of the varactor diode is difficult to realize large-range phase shifting, and the technical scheme provided by this embodiment adopts an ultra-wideband matching circuit with series inductive elements and parallel fan-shaped lines to match the capacitance characteristics of a specific varactor diode together, so that the phase shifting range of the variable reflection load cell VRL1 circuit is greatly increased, and the fluctuation of the signal amplitude is optimized.
In practical application, the number of stages N of a matching unit circuit in the ultra-wideband matching circuit with two ports connected with a sector line in parallel is determined by the total bandwidth of the phase shifter. Generally, the larger the operating bandwidth, the larger the number of stages of matching unit circuits in the ultra-wideband matching circuit requiring parallel fan-shaped lines (i.e., the larger N). In the embodiment, a 22-44GHz phase shift circuit is realized, and a matching circuit with one-stage parallel fan-shaped lines is adopted, so that the bandwidth of the device can be greatly expanded, and an octave phase shift device is realized. In this embodiment, the first-stage matching unit circuit MN _1 in the ultra-wideband matching circuit of the parallel sector line is formed by cascading one parallel sector line RSB _11 and the second series reactance element L11; the radius of the segment line RSB _11 is R _11 and the internal angle is a _11, where the second series reactance element L11 is implemented as a series inductive element implemented by a transmission line having a characteristic impedance and an electrical length (Z0_ L11, TH _ L11), respectively. Unlike lumped capacitor devices, the sector line has ultra-wideband characteristics and does not cause the problem of device inconsistency due to the fluctuation of the production process. The dimensions of the variable reflective load cell VRL1 loaded with sector lines in this embodiment are detailed in table 1;
table 1 variable reflective load cell VRL1 size
The sector line-loaded variable reflection load unit VRL 1' connected to the quadrature coupler coupling terminal COU, like the sector line-loaded variable reflection load unit VRL1 connected to the quadrature coupler through terminal THR, includes: the ultra-wideband matching circuit with two ports connected in parallel with a sector line and the tunable capacitive device VD1 ' formed by the first series reactance element TL1 ' and the primary matching unit circuit MN _1 ' are grounded, and the three are cascaded in sequence. In this embodiment, a symmetrical load structure is adopted, that is, the ultra-wideband matching circuit and the tunable capacitive device VD1 'of the two-port parallel fan-shaped line formed by the first series reactance element TL 1' and the first-stage matching unit circuit MN _1 'in the VRL 1' are respectively the same as the ultra-wideband matching circuit and the tunable capacitive device VD1 of the two-port parallel fan-shaped line formed by the first series reactance element TL1 and the first-stage matching unit circuit MN _1 in the VRL1, and the second bias resistor Rb1 'is the same as the first bias resistor Rb1, including the same device size and the same connection mode between devices, and the labels/marks of the related devices in the VRL 1' are the same as the labels/marks of the corresponding devices in the VRL1, with a suffix '″' added thereto, so that description is omitted here. One end of the second bias resistor Rb 1' is connected to the coupling terminal COU of the quadrature coupler, and the other end is connected to the external power supply Vc.
A simulation experiment is performed on the ultra-wideband adjustable phase shift unit loaded with the sector line reflection load shown in fig. 2, and fig. 5 shows the return loss characteristic of the phase shift unit when Vc is 0V. Due to the adoption of the reflective phase-shifting circuit structure of the orthogonal coupler, the embodiment can realize good matching better than-17 dB from the range of 20GHz-50 GHz; fig. 6 shows the phase shift characteristics of the phase shift unit, and the phase shift can be realized by increasing Vc with the phase when the bias voltage Vc is 0V as the reference phase; when the bias voltage Vc is more than 6V, the visible frequency can realize more than 180 degrees of phase shift within 20-45 GHz; FIG. 7 is a diagram showing the characteristics of the amplitude variation of the phase shift unit during the phase adjustment process, and the ultralow additional amplitude variation of + -0.7 dB is realized at 24-44 GHz; as can be seen from the simulation result of the insertion loss characteristics of the phase shift unit at the bias voltage Vc equal to 0V shown in fig. 8, the loss is small.
The invention also provides a phase shifter which is formed by sequentially cascading the multistage ultra-wideband adjustable phase shifting units loaded with sector line reflection loads, which are provided by the above embodiments; and the output nodes of the ultra-wideband adjustable phase-shifting units loaded with the sector line reflection loads are connected with the input nodes of the ultra-wideband adjustable phase-shifting units loaded with the sector line reflection loads at the next stage adjacent to the output nodes of the ultra-wideband adjustable phase-shifting units loaded with the sector line reflection loads, so that multistage cascade connection is realized. The isolation end of the orthogonal coupler in the ultra-wideband adjustable phase-shifting unit loaded with the sector line reflection load is connected with the input end of the orthogonal coupler in the next-stage ultra-wideband adjustable phase-shifting unit loaded with the sector line reflection load, so that multistage cascade connection is realized. In this embodiment, the output node of the ultra-wideband adjustable phase-shifting unit loaded with the sector line reflective load at each stage is connected to the input node of the ultra-wideband adjustable phase-shifting unit loaded with the sector line reflective load at the next stage adjacent to the output node of the ultra-wideband adjustable phase-shifting unit loaded with the sector line reflective load at each stage through the transmission line.
The structure schematic circuit diagram of one embodiment of the phase shifter provided by the invention is shown in fig. 4, in the embodiment, the 90 ° hybrid quadrature coupler CP1 is implemented by using coupled transmission lines, and the characteristic impedance and the electrical length of the odd-even mode are respectively; zo1 ═ 15 Ω, Ze1 ═ 100 Ω, and PHI — 1 @ 90 ° @34 GHz. As shown in fig. 4, in this embodiment, two ultra-wideband adjustable phase shifting units provided in fig. 2 are cascaded to form a phase shifter, that is, in order to further increase the phase shifting range, in this embodiment, two stages of ultra-wideband adjustable phase shifting units VPS1 and VPS2 loaded with sector line reflection loads are cascaded to form an integrated phase shifter, so as to implement ultra-wideband 360 ° phase shifting. Specifically, in the present embodiment, the output node P12 in the ultra-wideband adjustable phase shift unit VPS1 loaded with the sector line reflective load at the first stage is connected to the input node P21 in the ultra-wideband adjustable phase shift unit VPS2 loaded with the sector line reflective load at the next stage, so that two-stage cascade connection of VPS1 and VPS2 is realized. The two-stage cascade of the VPS1 and the VPS2 can be realized by connecting the isolated end of the orthogonal coupler CP1 in the ultra-wideband adjustable phase-shifting unit VPS1 loaded with the sector line reflective load at the first stage to the input end of the orthogonal coupler CP2 in the ultra-wideband adjustable phase-shifting unit VPS2 loaded with the sector line reflective load at the next stage.
In this embodiment, VPS2 and VPS1 have the same structure, that is, VPS2 includes a quadrature coupler CP2, an input node P21 and an output node P22, which are the same as the quadrature coupler CP1, the input end of the quadrature coupler CP2 is connected to the input node P21, and the isolated end of the quadrature coupler CP2 is connected to the output node P22.
In this embodiment, each component in VPS 2: the parallel fan-shaped line RSB _21 and the second series reactance element L21 in the ultra-wideband matching circuit comprising the first series reactance element TL2, the tunable capacitive device VD2 and the two-port parallel fan-shaped line, the first bias resistor Rb2, the first series reactance element TL2 ', the tunable capacitive device VD2 ', the parallel fan-shaped line RSB _21 ' and the second series reactance element L21 ' in the two-port parallel fan-shaped line ultra-wideband matching circuit, and the second bias resistor Rb2 ', and the corresponding components in the VPS 1: the parallel fan-shaped line RSB _11 in the ultra-wideband matching circuit of the first series reactance element TL1, the tunable capacitive device VD1 and the two-port parallel fan-shaped line is the same as the second series reactance element L11, the first bias resistor Rb1, the first series reactance element TL1 ', the tunable capacitive device VD1 ', the parallel fan-shaped line RSB _11 ' in the two-port parallel fan-shaped line ultra-wideband matching circuit, the second series reactance element L11 ' and the second bias resistor Rb1 ', including the same device size and the same connection mode between devices.
As shown in fig. 4, in this embodiment, two identical ultra-wideband adjustable phase shifting units loaded with sector line reflective loads are connected through a transmission line TL12 with characteristic impedance Z0_12 equal to 50 Ω, and the electrical length TH _12 can be freely adjusted according to layout position, where the electrical length TH _12 is selected to be 30 ° @34GHz in this embodiment.
A simulation experiment was performed on the phase shifter in which two stages of VPS1 and VPS2 are cascaded as shown in fig. 4, which is provided in this embodiment, and fig. 9 shows the return loss characteristic of the phase shifter when Vc is 0V. After the ultra-wideband adjustable phase-shifting units loaded with sector line reflection loads at two stages are cascaded, the good matching from 20GHz to 50GHz, which is better than-12 dB, can still be realized; fig. 10 shows the phase shift characteristics of the two-stage cascaded phase shifter, in which the phase shift can be realized by increasing Vc, with the phase when the bias voltage Vc is 0V as the reference phase; when the bias voltage Vc is more than 6V, the visible frequency can realize more than 360-degree phase shift within 20-45 GHz; FIG. 11 is a graph of the amplitude variation characteristics of the two-stage cascaded phase shifter during phase adjustment, achieving an ultra-low additional amplitude variation of + -0.1.5 dB at 24-44 GHz; fig. 12 shows the insertion loss characteristics of the two-stage cascaded phase shifter when the bias voltage Vc is 0V, and it can be seen from the simulation result that the two-stage cascaded phase shifter provided in this embodiment has a smaller loss.
The above is only a preferred embodiment of the present invention, it should be noted that the above embodiment does not limit the present invention, and various changes and modifications made by workers within the scope of the technical idea of the present invention fall within the protection scope of the present invention.
Claims (10)
1. An ultra-wideband adjustable phase shifting unit loaded with sector line reflective loads, comprising: an input node, an output node, and a quadrature coupler;
wherein the input node for receiving the signal to be phase-shifted is connected with the input end of the orthogonal coupler;
wherein the output node of the output phase-shifted signal is connected with the isolation end of the orthogonal coupler;
the straight-through end and the coupling end of the orthogonal coupler are respectively connected with a single-port variable reflection type load unit.
2. The ultra-wideband adjustable phase shifting unit loaded with a sector line reflective load according to claim 1, wherein: each single-port variable reflection type load unit is formed by cascading a two-port first series reactance element, an ultra-wideband matching circuit with two ports connected with a sector line in parallel and a single-port series-grounded tunable capacitive device.
3. The ultra-wideband adjustable phase shifting unit loaded with a sector line reflective load according to claim 2, wherein: the ultra-wideband matching circuit with the two ports connected with the fan-shaped lines in parallel is mainly formed by sequentially cascading N-stage matching unit circuits, wherein N is more than or equal to 1; each stage of matching unit circuit is mainly formed by cascading a parallel fan-shaped line circuit and a second series reactance element, and each stage of matching unit circuit comprises more than one parallel fan-shaped line circuit.
4. The ultra-wideband adjustable phase shifting unit loaded with a sector line reflective load according to claim 2 or 3, wherein: the first series reactance element and the second series reactance element are inductance elements or transmission lines adopting a series structure.
5. The ultra-wideband adjustable phase shifting unit loaded with a sector line reflective load according to claim 2 or 3, wherein: the tunable capacitive device is a diode or a triode with a source electrode and a drain electrode connected through ports.
6. The ultra-wideband adjustable phase shifting unit loaded with a sector line reflective load according to claim 1, wherein: the single-port variable reflective load unit is a variable reflective load unit loading a sector line.
7. The ultra-wideband adjustable phase shifting unit loaded with a sector line reflective load according to claim 1, wherein: the circuit also comprises a first bias resistor with one end connected with the through end of the orthogonal coupler and the other end connected with external power supply, and a second bias resistor with one end connected with the coupling end of the orthogonal coupler and the other end connected with the external power supply.
8. A phase shifter, characterized by: the phase-shifting unit mainly comprises a plurality of stages of ultra-wideband adjustable phase-shifting units loaded with sector line reflection loads according to any one of claims 1 to 7 which are cascaded in sequence; and the output nodes of the ultra-wideband adjustable phase-shifting units loaded with the sector line reflection loads are connected with the input nodes of the ultra-wideband adjustable phase-shifting units loaded with the sector line reflection loads at the next stage adjacent to the output nodes of the ultra-wideband adjustable phase-shifting units loaded with the sector line reflection loads, so that multistage cascade connection is realized.
9. The phase shifter of claim 8, wherein: the output node of the ultra-wideband adjustable phase-shifting unit loaded with the sector line reflection load at each stage is connected with the input node of the ultra-wideband adjustable phase-shifting unit loaded with the sector line reflection load at the next stage adjacent to the output node of the ultra-wideband adjustable phase-shifting unit through the transmission line.
10. A phase shifter, characterized by: the phase-shifting unit mainly comprises a plurality of stages of ultra-wideband adjustable phase-shifting units loaded with sector line reflection loads according to any one of claims 1 to 7 which are cascaded in sequence; the isolation end of the orthogonal coupler in the ultra-wideband adjustable phase-shifting unit loaded with the sector line reflection load is connected with the input end of the orthogonal coupler in the next-stage ultra-wideband adjustable phase-shifting unit loaded with the sector line reflection load, so that multistage cascade connection is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911385491.5A CN110957987A (en) | 2019-12-29 | 2019-12-29 | Ultra-wideband adjustable phase-shifting unit loaded with sector line reflection load and phase shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911385491.5A CN110957987A (en) | 2019-12-29 | 2019-12-29 | Ultra-wideband adjustable phase-shifting unit loaded with sector line reflection load and phase shifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110957987A true CN110957987A (en) | 2020-04-03 |
Family
ID=69984773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911385491.5A Pending CN110957987A (en) | 2019-12-29 | 2019-12-29 | Ultra-wideband adjustable phase-shifting unit loaded with sector line reflection load and phase shifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110957987A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135409A1 (en) * | 2019-12-29 | 2021-07-08 | 南京米乐为微电子科技有限公司 | Ultra-wideband adjustable phase shifter loaded with fan-shaped line reflective load |
| WO2021135410A1 (en) * | 2019-12-29 | 2021-07-08 | 南京米乐为微电子科技有限公司 | Ultra-wideband adjustable phase shifting unit loaded with fan-shaped wire reflection load |
| WO2023226503A1 (en) * | 2022-05-27 | 2023-11-30 | 华为技术有限公司 | Phase shifter and communication device |
-
2019
- 2019-12-29 CN CN201911385491.5A patent/CN110957987A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135409A1 (en) * | 2019-12-29 | 2021-07-08 | 南京米乐为微电子科技有限公司 | Ultra-wideband adjustable phase shifter loaded with fan-shaped line reflective load |
| WO2021135410A1 (en) * | 2019-12-29 | 2021-07-08 | 南京米乐为微电子科技有限公司 | Ultra-wideband adjustable phase shifting unit loaded with fan-shaped wire reflection load |
| WO2023226503A1 (en) * | 2022-05-27 | 2023-11-30 | 华为技术有限公司 | Phase shifter and communication device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109616723B (en) | High-precision phase shifter applied to 5G millimeter wave base station | |
| CN110957987A (en) | Ultra-wideband adjustable phase-shifting unit loaded with sector line reflection load and phase shifter | |
| US10270146B2 (en) | Ultra wide band digital phase shifter | |
| CN110190830B (en) | Dual-band miniaturized digital phase shifter | |
| CN100555860C (en) | Micro-wave mm wave broadband and low consumption digital analog compatible phase shifter | |
| CN210839500U (en) | Ultra-wideband adjustable phase-shifting unit loaded with sector line reflection load | |
| WO2017128678A1 (en) | Capacitive load-based ultra wide band constant value phase shifter | |
| CN211063583U (en) | Ultra-wideband adjustable phase shifter loaded with sector line reflection load | |
| CN110752429A (en) | Ultra-wideband odd-equal power dividing circuit and design method | |
| CN112688664A (en) | Broadband six-bit MMIC numerical control phase shifter | |
| CN102176523B (en) | Miniaturized UWB (ultra-wide-band) low-loss 0-90-degree phase shifter with microwave and millimeter wave of 1-22GHz | |
| CN114499456B (en) | Broadband orthogonal signal generator based on two-stage hybrid | |
| CN113783550B (en) | High-precision numerical control phase shifter for K wave band and phase shifting method thereof | |
| CN115566379A (en) | Ultra-wideband digital phase shifter covering K and Ka wave bands | |
| CN109509940A (en) | A kind of continuously adjustable analog phase shifter | |
| KR102670636B1 (en) | Power distributors, regulation methods, power distribution methods, storage media and electronic devices | |
| CN113949361A (en) | Ultra-wideband phase-shifting circuit | |
| CN115021701A (en) | Ultra-wideband analog phase shifter | |
| CN209691908U (en) | A kind of phase shifter | |
| EP0456379A1 (en) | Analog phase shifter | |
| CN113193851A (en) | Numerical control phase shifter for X wave band | |
| CN117081545B (en) | Ultra-wideband digital phase shifter | |
| KR100366299B1 (en) | Analog Phase Shifter Using Hybrid Coupler and Varactor Diode Circuit | |
| Shin et al. | 360-degree linear analog phase shifter design using tunable short-circuit terminated combline filters | |
| CN216673004U (en) | Phase-adjustable control system and radio frequency circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 211100 9 Jiangning Road, Jiangning economic and Technological Development Zone, Nanjing, China Applicant after: Nanjing Milewei Microelectronics Technology Co.,Ltd. Address before: 211100 9 Jiangning Road, Jiangning economic and Technological Development Zone, Nanjing, China Applicant before: NANJING MILEWEI Corp. Country or region before: China |
|
| CB02 | Change of applicant information |