CN115458882B - Balance type broadband phase shifter - Google Patents
Balance type broadband phase shifter Download PDFInfo
- Publication number
- CN115458882B CN115458882B CN202211114951.2A CN202211114951A CN115458882B CN 115458882 B CN115458882 B CN 115458882B CN 202211114951 A CN202211114951 A CN 202211114951A CN 115458882 B CN115458882 B CN 115458882B
- Authority
- CN
- China
- Prior art keywords
- microstrip line
- line
- wavelength
- capacitor group
- feeder
- 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.)
- Active
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 52
- 239000002356 single layer Substances 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 29
- 238000010168 coupling process Methods 0.000 claims description 29
- 238000005859 coupling reaction Methods 0.000 claims description 29
- 230000010363 phase shift Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000001629 suppression Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
- H01P1/184—Strip line phase-shifters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
本发明属于微波通信技术领域，具体涉及一种平衡式宽带移相器。本发明采用单层微带结构，整个结构沿垂直方向的中心线对称，包括第一馈线至第四馈线、半波长耦合微带线、第一耦合微带线、第二耦合微带线、第一微带线、第二微带线、阶跃阻抗线、第一电容组及第二电容组；第一馈线与第二馈线的一端分别连接半波长耦合微带线的上侧两端；第三馈线与第四馈线的一端分别连接半波长耦合微带线的下侧两端；半波长耦合微带线的左侧两端分别与第一电容组的一端连接；半波长耦合微带线的右侧两端分别与第二电容组的一端连接；阶跃阻抗线的上端与半波长耦合微带线下侧中点端连接。本发明具有宽带、小尺寸、低损耗和结构简单易加工的优点。
The invention belongs to the technical field of microwave communication, and in particular relates to a balanced broadband phase shifter. The present invention adopts a single-layer microstrip structure, and the whole structure is symmetrical along the center line in the vertical direction, including the first feeder line to the fourth feeder line, the half-wavelength coupled microstrip line, the first coupled microstrip line, the second coupled microstrip line, the second A microstrip line, a second microstrip line, a step impedance line, a first capacitor group and a second capacitor group; one end of the first feeder line and the second feeder line are respectively connected to the upper two ends of the half-wavelength coupled microstrip line; the second One end of the three feeders and the fourth feeder are respectively connected to the lower two ends of the half-wavelength coupled microstrip line; the left two ends of the half-wavelength coupled microstrip line are respectively connected to one end of the first capacitor group; The two ends on the right side are respectively connected to one end of the second capacitor group; the upper end of the step impedance line is connected to the lower midpoint end of the half-wavelength coupled microstrip line. The invention has the advantages of wide band, small size, low loss, simple structure and easy processing.
Description
技术领域technical field
本发明属于微波通信技术领域，具体涉及一种平衡式宽带移相器。The invention belongs to the technical field of microwave communication, and in particular relates to a balanced broadband phase shifter.
背景技术Background technique
移相器能够对电磁波的相位进行调整和控制，被广泛应用于相控阵天线、圆极化天线、波束成形网络和卫星移动通信系统中，其性能的好坏直接影响整个通信系统的质量。无线通信系统正向小型化、高集成度和低损耗方向发展，导致系统内部的环境噪声和电磁串扰等问题日益严重，因此同时具有差模移相和共模抑制功能的平衡式移相器受到广泛关注。此外，随着无线通信系统的快速发展，频谱资源日益紧张，而宽带系统因其兼容性好、传输速率高等优势成为未来无线通信发展的必然趋势。因此，具有宽带、小型化和低损耗特点的平衡式移相器符合无线通信系统的发展需求，然而目前同时具有宽带、小尺寸和低损耗的平衡式移相器设计仍然是一个重要挑战。Phase shifters can adjust and control the phase of electromagnetic waves, and are widely used in phased array antennas, circularly polarized antennas, beamforming networks, and satellite mobile communication systems, and their performance directly affects the quality of the entire communication system. Wireless communication systems are developing towards miniaturization, high integration and low loss, which leads to increasingly serious problems such as environmental noise and electromagnetic crosstalk inside the system. Therefore, balanced phase shifters with differential-mode phase shift and common-mode suppression functions are being extensive attention. In addition, with the rapid development of wireless communication systems, spectrum resources are becoming increasingly scarce, and broadband systems have become an inevitable trend in the future development of wireless communication due to their advantages such as good compatibility and high transmission rates. Therefore, balanced phase shifters with broadband, miniaturization, and low loss meet the development needs of wireless communication systems. However, the design of balanced phase shifters with broadband, small size, and low loss is still an important challenge.
目前报道了多种平衡式移相器的设计技术。采用单个半波长耦合线加载半波长微带线的方法可以实现宽带差模阻抗匹配和宽带差模移相，但是工作带宽受限于共模抑制带宽。使用非对称的方法可以实现宽带共模抑制和小尺寸，但是工作带宽较窄，且损耗较大。采用两级分支线结构或T型多模谐振器的方法可以实现宽移相范围，但其尺寸较大。采用一对对折耦合线的三端分别连接半波长微带线的方法可以实现滤波移相功能，但其带宽较窄。使用液晶技术可以实现可调差模移相功能，但是其工作带宽较窄且结构复杂。A variety of design techniques for balanced phase shifters have been reported. The method of loading a half-wavelength microstrip line with a single half-wavelength coupling line can realize broadband differential-mode impedance matching and broadband differential-mode phase shifting, but the working bandwidth is limited by the common-mode rejection bandwidth. Wideband common-mode rejection and small size can be achieved using an asymmetric approach, but the operating bandwidth is narrow and losses are high. A wide phase shift range can be achieved by using a two-stage branch line structure or a T-shaped multimode resonator, but its size is relatively large. The method of connecting the three ends of a pair of double-fold coupled lines to the half-wavelength microstrip line can realize the function of filtering and phase shifting, but its bandwidth is narrow. The use of liquid crystal technology can realize the adjustable differential mode phase shift function, but its working bandwidth is narrow and the structure is complex.
发明内容Contents of the invention
本发明针对上述技术所存在的问题，提出了一种平衡式宽带移相器。本发明的目的在于提高平衡式移相器的工作带宽，并且在保证宽带的情况下，降低尺寸和损耗，实现小尺寸、低损耗和结构简单的一种平衡式宽带移相器。The present invention proposes a balanced broadband phase shifter aiming at the problems existing in the above technologies. The purpose of the present invention is to improve the working bandwidth of the balanced phase shifter, and reduce the size and loss while ensuring the broadband, so as to realize a balanced broadband phase shifter with small size, low loss and simple structure.
本发明为实现上述发明目的，采取的技术方案如下：一种平衡式宽带移相器，采用单层微带结构，整个结构沿垂直方向的中心线对称，包括第一馈线至第四馈线、半波长耦合微带线、第一耦合微带线、第二耦合微带线、第一微带线、第二微带线、阶跃阻抗线、第一电容组及第二电容组；所述第一馈线与第二馈线的一端分别连接半波长耦合微带线的上侧两端；所述第三馈线与第四馈线的一端分别连接半波长耦合微带线的下侧两端；所述半波长耦合微带线的左侧两端分别与第一电容组的一端连接；所述第一电容组的另一端分别与第一耦合微带线的一端连接；所述第一耦合微带线的另一端与第一微带线连接；所述半波长耦合微带线的右侧两端分别与第二电容组的一端连接；所述第二电容组的另一端分别与第二耦合微带线的一端连接；所述第二耦合微带线的另一端与第二微带线连接；所述阶跃阻抗线的上端与半波长耦合微带线下侧中点端连接。In order to realize the purpose of the above invention, the technical scheme adopted by the present invention is as follows: a balanced broadband phase shifter adopts a single-layer microstrip structure, and the whole structure is symmetrical along the center line in the vertical direction, including the first feeder to the fourth feeder, half Wavelength coupled microstrip line, first coupled microstrip line, second coupled microstrip line, first microstrip line, second microstrip line, step impedance line, first capacitor group and second capacitor group; One end of a feeder line and one end of the second feeder line are respectively connected to the upper two ends of the half-wavelength coupled microstrip line; one end of the third feeder line and the fourth feeder line are respectively connected to the lower two ends of the half-wavelength coupled microstrip line; The left two ends of the wavelength coupled microstrip line are respectively connected to one end of the first capacitor group; the other ends of the first capacitor group are respectively connected to one end of the first coupled microstrip line; the first coupled microstrip line The other end is connected to the first microstrip line; the two ends on the right side of the half-wavelength coupled microstrip line are respectively connected to one end of the second capacitor group; the other end of the second capacitor group is respectively connected to the second coupled microstrip line The other end of the second coupled microstrip line is connected to the second microstrip line; the upper end of the step impedance line is connected to the lower midpoint end of the half-wavelength coupled microstrip line.
进一步的作为本发明的优选技术方案，所述第一馈线与第二馈线的另一端分别外接一对平衡式端口；所述第三馈线与第四馈线的另一端分别外接另一对平衡式端口。Further, as a preferred technical solution of the present invention, the other ends of the first feeder and the second feeder are respectively externally connected to a pair of balanced ports; the other ends of the third feeder and the fourth feeder are respectively externally connected to another pair of balanced ports .
进一步的作为本发明的优选技术方案，所述第一电容组、第二电容组均包括上下平行设置的2个电容。As a further preferred technical solution of the present invention, both the first capacitor group and the second capacitor group include two capacitors arranged in parallel up and down.
进一步的作为本发明的优选技术方案，所述第一微带线、第二微带线均为口字型微带线；所述第一微带线的右侧设置开口端；所述第一微带线右侧开口端的上下侧与第一耦合微带线的另一端连接；所述第二微带线的左侧设置开口端；所述第二微带线左侧开口端的上下侧与第二耦合微带线的另一端。As a further preferred technical solution of the present invention, both the first microstrip line and the second microstrip line are square-shaped microstrip lines; the right side of the first microstrip line is provided with an open end; the first microstrip line The upper and lower sides of the open end on the right side of the microstrip line are connected to the other end of the first coupling microstrip line; the left side of the second microstrip line is provided with an open end; the upper and lower sides of the left open end of the second microstrip line are connected to the second The other end of the second coupled microstrip line.
进一步的作为本发明的优选技术方案，当移相器被差模信号激励时，半波长耦合微带线沿着垂直方向的中心对称面等效为理想的电壁，阶跃阻抗线不起作用，半波长耦合微带线等效为四分之一波长短路枝节，结合两端分别连接第一电容组、第二电容组和第一微带线、第二微带线的第一耦合微带线、第二耦合微带线可获得多个差模传输极点，实现宽带差模阻抗匹配，通过调节半波长耦合微带线、第一耦合微带线、第二耦合微带线的奇偶模阻抗、第一电容组与第二电容组的容值和第一微带线、第二微带线的阻抗控制差模阻抗匹配带宽和差模移相带宽；当被共模信号激励时，移相器垂直方向的中心对称面等效为理想的磁壁，半波长耦合微带线等效为四分之一波长开路枝节，结合两端分别连接第一电容组、第二电容组和第一微带线、第二微带线的第一耦合微带线、第二耦合微带线以及阶跃阻抗线可获得多个共模传输零点，实现宽带共模抑制，阶跃阻抗线在不影响差模工作的情况下提高共模抑制带宽。Further as a preferred technical solution of the present invention, when the phase shifter is excited by a differential mode signal, the half-wavelength coupled microstrip line along the vertical central symmetry plane is equivalent to an ideal electric wall, and the step impedance line does not work , the half-wavelength coupled microstrip line is equivalent to a quarter-wavelength short-circuit stub, combined with the first coupled microstrip that connects the first capacitor group, the second capacitor group, the first microstrip line, and the second microstrip line at both ends line, the second coupled microstrip line can obtain multiple differential mode transmission poles, and realize broadband differential mode impedance matching, by adjusting the odd and even mode impedance of the half-wavelength coupled microstrip line, the first coupled microstrip line, and the second coupled microstrip line , the capacitance of the first capacitor group and the second capacitor group and the impedance of the first microstrip line and the second microstrip line control the differential mode impedance matching bandwidth and the differential mode phase shift bandwidth; when excited by the common mode signal, the phase shift The central symmetry plane in the vertical direction of the device is equivalent to an ideal magnetic wall, and the half-wavelength coupled microstrip line is equivalent to a quarter-wavelength open-circuit stub, and the two ends of the combination are respectively connected to the first capacitor group, the second capacitor group and the first microstrip line, the first coupled microstrip line of the second microstrip line, the second coupled microstrip line, and the step impedance line can obtain multiple common-mode transmission zeros to achieve wideband common-mode rejection, and the step impedance line does not affect the differential mode operation to increase the common-mode rejection bandwidth.
本发明所述的一种平衡式宽带移相器，采用以上技术方案与现有技术相比，具有以下技术效果：A kind of balanced broadband phase shifter described in the present invention adopts the above technical scheme compared with the prior art, and has the following technical effects:
(1)本发明通过一个半波长耦合微带线，结合一对两端分别连接电容和微带线的耦合微带线实现同时具有宽带差模阻抗匹配、宽带差模移相和宽带共模抑制的平衡式移相器，并且具有小尺寸、低损耗和结构简单易加工的优点。(1) The present invention realizes having broadband differential mode impedance matching, broadband differential mode phase shifting and broadband common mode rejection simultaneously through a half-wavelength coupled microstrip line, combined with a pair of coupled microstrip lines whose two ends are respectively connected to capacitors and microstrip lines The balanced phase shifter has the advantages of small size, low loss, simple structure and easy processing.
(2)本发明整个电路结构左右对称而上下不对称，以便兼顾差模阻抗匹配、差模移相和共模抑制的性能调控。(2) The entire circuit structure of the present invention is left-right symmetrical and vertically asymmetrical, so as to take into account the performance control of differential-mode impedance matching, differential-mode phase shifting and common-mode suppression.
(3)本发明即可通过微带线实现，也可通过共面波导、带状线等其它传输线形式实现。(3) The present invention can be realized through microstrip lines, and can also be realized through coplanar waveguides, striplines and other transmission line forms.
附图说明Description of drawings
图1是本发明实施例紧凑型平衡式宽带移相器的结构示意图；Fig. 1 is a schematic structural view of a compact balanced broadband phase shifter according to an embodiment of the present invention;
图2是本发明实施例紧凑型平衡式宽带移相器的差模阻抗匹配响应仿真图；Fig. 2 is the simulation diagram of the differential mode impedance matching response of the compact balanced broadband phase shifter of the embodiment of the present invention;
图3是本发明实施例紧凑型平衡式宽带移相器的差模移相响应仿真图；Fig. 3 is the differential mode phase-shifting response simulation diagram of the compact balanced broadband phase shifter of the embodiment of the present invention;
图4是本发明实施例紧凑型平衡式宽带移相器的共模抑制响应仿真图；Fig. 4 is the common-mode rejection response simulation diagram of the compact balanced broadband phase shifter of the embodiment of the present invention;
附图中，1-第一馈线，2-第二馈线，3-第三馈线，4-第四馈线，5-半波长耦合微带线，6-第一耦合微带线，7-第二耦合微带线，8-第一微带线，9-第二微带线，10-阶跃阻抗线。In the drawings, 1-first feeder, 2-second feeder, 3-third feeder, 4-fourth feeder, 5-half-wavelength coupled microstrip line, 6-first coupled microstrip line, 7-second Coupled microstrip line, 8-first microstrip line, 9-second microstrip line, 10-step impedance line.
具体实施方式Detailed ways
下面结合附图详细的描述本发明的作进一步的解释说明，以使本领域的技术人员可以更深入地理解本发明并能够实施，但下面通过参考实例仅用于解释本发明，不作为本发明的限定。The present invention is described in detail below in conjunction with the accompanying drawings for further explanation, so that those skilled in the art can understand the present invention more deeply and can implement it, but the following examples are only used to explain the present invention, not as the present invention limit.
如图1所示，本发明提出的一种平衡式宽带移相器，采用单层微带结构，整个结构沿垂直方向的中心线对称，包括第一馈线1至第四馈线4、半波长耦合微带线5、第一耦合微带线6、第二耦合微带线7、第一微带线8、第二微带线9、阶跃阻抗线10、第一电容组及第二电容组；第一馈线1与第二馈线2的一端分别连接半波长耦合微带线5的上侧两端；第三馈线3与第四馈线4的一端分别连接半波长耦合微带线5的下侧两端；半波长耦合微带线5的左侧两端分别与第一电容组的一端连接；第一电容组的另一端分别与第一耦合微带线6的一端连接；第一耦合微带线6的另一端与第一微带线8连接；半波长耦合微带线5的右侧两端分别与第二电容组的一端连接；第二电容组的另一端分别与第二耦合微带线7的一端连接；第二耦合微带线7的另一端与第二微带线9连接；阶跃阻抗线10的上端与半波长耦合微带线5下侧中点端连接。As shown in Figure 1, a balanced broadband phase shifter proposed by the present invention adopts a single-layer microstrip structure, and the entire structure is symmetrical along the center line in the vertical direction, including the first feeder 1 to the fourth feeder 4, half-wavelength coupling Microstrip line 5, first coupled microstrip line 6, second coupled microstrip line 7, first microstrip line 8, second microstrip line 9, step impedance line 10, first capacitor group and second capacitor group One end of the first feeder 1 and the second feeder 2 are respectively connected to the upper two ends of the half-wavelength coupled microstrip line 5; one end of the third feeder 3 and the fourth feeder 4 are respectively connected to the lower side of the half-wavelength coupled microstrip line 5 two ends; the left two ends of the half-wavelength coupled microstrip line 5 are respectively connected to one end of the first capacitor group; the other end of the first capacitor group is respectively connected to one end of the first coupled microstrip line 6; the first coupled microstrip The other end of the line 6 is connected with the first microstrip line 8; the two ends on the right side of the half-wavelength coupled microstrip line 5 are respectively connected with one end of the second capacitor group; the other end of the second capacitor group is respectively connected with the second coupled microstrip One end of the line 7 is connected; the other end of the second coupled microstrip line 7 is connected to the second microstrip line 9;
第一馈线1与第二馈线2的另一端分别外接一对平衡式端口；第三馈线3与第四馈线4的另一端分别外接另一对平衡式端口。第一电容组、第二电容组均包括上下平行设置的2个电容。The other ends of the first feeder 1 and the second feeder 2 are respectively externally connected to a pair of balanced ports; the other ends of the third feeder 3 and the fourth feeder 4 are respectively externally connected to another pair of balanced ports. Both the first capacitor group and the second capacitor group include two capacitors arranged in parallel up and down.
第一微带线8、第二微带线9均为口字型微带线；第一微带线8的右侧设置开口端；第一微带线8右侧开口端的上下侧与第一耦合微带线6的另一端连接；第二微带线9的左侧设置开口端；第二微带线9左侧开口端的上下侧与第二耦合微带线7的另一端连接。The first microstrip line 8 and the second microstrip line 9 are mouth-shaped microstrip lines; the right side of the first microstrip line 8 is provided with an open end; The other end of the coupled microstrip line 6 is connected; the left side of the second microstrip line 9 is provided with an open end; the upper and lower sides of the left open end of the second microstrip line 9 are connected to the other end of the second coupled microstrip line 7 .
当移相器被差模信号激励时，半波长耦合微带线5沿着垂直方向的中心对称面等效为理想的电壁，阶跃阻抗线10不起作用，半波长耦合微带线5等效为四分之一波长短路枝节，结合两端分别连接第一电容组、第二电容组和第一微带线8、第二微带线9的第一耦合微带线6、第二耦合微带线7可获得多个差模传输极点，实现宽带差模阻抗匹配，通过调节半波长耦合微带线5、第一耦合微带线6、第二耦合微带线7的奇偶模阻抗、第一电容组与第二电容组的容值和第一微带线8、第二微带线9的阻抗控制差模阻抗匹配带宽和差模移相带宽；当被共模信号激励时，移相器垂直方向的中心对称面等效为理想的磁壁，半波长耦合微带线5等效为四分之一波长开路枝节，结合两端分别连接第一电容组、第二电容组和第一微带线8、第二微带线9的第一耦合微带线6、第二耦合微带线7以及阶跃阻抗线10可获得多个共模传输零点，实现宽带共模抑制，阶跃阻抗线10在不影响差模工作的情况下提高共模抑制带宽。When the phase shifter is excited by a differential mode signal, the half-wavelength coupled microstrip line 5 is equivalent to an ideal electric wall along the central symmetry plane in the vertical direction, and the step impedance line 10 does not work, and the half-wavelength coupled microstrip line 5 It is equivalent to a quarter-wavelength short-circuit stub, combining the first coupling microstrip line 6 and the second microstrip line connected to the first capacitor group, the second capacitor group and the first microstrip line 8 and the second microstrip line 9 respectively at both ends. The coupled microstrip line 7 can obtain a plurality of differential mode transmission poles to realize broadband differential mode impedance matching, by adjusting the odd and even mode impedances of the half-wavelength coupled microstrip line 5, the first coupled microstrip line 6, and the second coupled microstrip line 7 , the capacitance of the first capacitor group and the second capacitor group and the impedance of the first microstrip line 8 and the second microstrip line 9 control the differential mode impedance matching bandwidth and the differential mode phase shift bandwidth; when excited by the common mode signal, The central symmetrical plane in the vertical direction of the phase shifter is equivalent to an ideal magnetic wall, and the half-wavelength coupled microstrip line 5 is equivalent to a quarter-wavelength open-circuit stub, and the two ends of the combination are respectively connected to the first capacitor group, the second capacitor group and the second capacitor group. A microstrip line 8, the first coupled microstrip line 6 of the second microstrip line 9, the second coupled microstrip line 7 and the step impedance line 10 can obtain a plurality of common-mode transmission zero points, realize broadband common-mode suppression, and step The jumper impedance line 10 improves the common mode rejection bandwidth without affecting the differential mode operation.
本发明中移相器的参考线和主线结构相同，如图1所示，区别在于对应部分的物理尺寸取值有差异，该设计的移相基准值通过参考线和主线的第一馈线1至第四馈线4的长度差对应的相位差实现。The reference line and the main line structure of the phase shifter in the present invention are the same, as shown in Figure 1, the difference is that there is a difference in the value of the physical size of the corresponding part, the phase shift reference value of this design passes through the first feeder line 1 to the first feeder line of the reference line and the main line The phase difference corresponding to the length difference of the fourth feeder 4 is realized.
本实施例为本发明的45°和90°移相器的设计案例，分别实现了45°和90°的差模移相，设定中心频率为3.5GHz，图2是本发明实施例紧凑型平衡式宽带移相器的差模阻抗匹配响应仿真图；图3是本发明实施例紧凑型平衡式宽带移相器的差模移相响应仿真图；图4是本发明实施例紧凑型平衡式宽带移相器的共模抑制响应仿真图；对于参考线，15-dB差模阻抗匹配带宽为2.13GHz～5.74GHz(103.1％)，通带内最大插入损耗为0.25dB，10-dB共模抑制宽为2.1GHz～6.2GHz(117.1％)。对于45°移相器主线，15-dB差模阻抗匹配带宽为1.97GHz～5.75GHz(108％)，通带内最小插入损耗为0.23dB，10-dB共模抑制带宽为2.22GHz～6.2GHz(113.7％)。90°移相器主线的15-dB差模阻抗匹配带宽为1.32GHz～6.29GHz(142％)，通带内最小插入损耗为0.27dB，10-dB共模抑制带宽为2.15GHz～6.32GHz(119.1％)。实现45°±2.5°和90°±4.5°的移相带宽分别为2.23GHz～5.74GHz(100.3％)和2.21GHz～5.74GHz(100.8％)。因此，对于45°和90°移相器，其同时覆盖参考线和主线的15-dB差模阻抗匹配带宽、10-dB共模抑制带宽以及移相误差在±2.5°和±5°之内的移相带宽的工作带宽分别为2.23GHz～5.74GHz(100.3％)和2.21GHz～5.74GHz(100.8％)。参考线、45°主线和90°主线的电尺寸分别是0.9λg×0.23λg、0.77λg×0.24λg和0.74λg×0.34λg(λg为中心频率所对应的导波波长)。本案例采用RO4003C基板，其介电常数为3.38，损耗角为0.0027，厚度为0.813mm。This embodiment is a design case of the 45° and 90° phase shifters of the present invention, respectively realizing 45° and 90° differential mode phase shifting, and setting the center frequency to 3.5 GHz. Figure 2 is a compact version of the embodiment of the present invention The differential mode impedance matching response simulation diagram of the balanced broadband phase shifter; Fig. 3 is the differential mode phase shift response simulation diagram of the compact balanced broadband phase shifter of the embodiment of the present invention; Fig. 4 is the compact balanced type of the embodiment of the present invention Simulation diagram of common-mode rejection response of broadband phase shifter; for the reference line, the 15-dB differential-mode impedance matching bandwidth is 2.13GHz to 5.74GHz (103.1%), the maximum insertion loss in the passband is 0.25dB, and the 10-dB common-mode The suppression width is 2.1GHz-6.2GHz (117.1%). For the main line of the 45° phase shifter, the 15-dB differential mode impedance matching bandwidth is 1.97GHz to 5.75GHz (108%), the minimum insertion loss in the passband is 0.23dB, and the 10-dB common mode rejection bandwidth is 2.22GHz to 6.2GHz (113.7%). The 15-dB differential mode impedance matching bandwidth of the main line of the 90° phase shifter is 1.32GHz to 6.29GHz (142%), the minimum insertion loss in the passband is 0.27dB, and the 10-dB common mode rejection bandwidth is 2.15GHz to 6.32GHz ( 119.1%). The phase shift bandwidths of 45°±2.5° and 90°±4.5° are 2.23GHz-5.74GHz (100.3%) and 2.21GHz-5.74GHz (100.8%) respectively. Therefore, for 45° and 90° phase shifters, it covers both reference and main lines with 15-dB differential-mode impedance matching bandwidth, 10-dB common-mode rejection bandwidth, and phase shift error within ±2.5° and ±5° The working bandwidths of the phase-shifting bandwidths are 2.23GHz-5.74GHz (100.3%) and 2.21GHz-5.74GHz (100.8%) respectively. The electrical dimensions of the reference line, 45° main line and 90° main line are 0.9λ g ×0.23λ g , 0.77λ g ×0.24λ g and 0.74λ g ×0.34λ g respectively (λ g is the guided wavelength corresponding to the center frequency ). This case adopts RO4003C substrate, its dielectric constant is 3.38, loss angle is 0.0027, and thickness is 0.813mm.
本发明为通过一个半波长耦合微带线，结合一对两端分别连接电容和微带线的耦合微带线实现同时具有宽带差模阻抗匹配、宽带差模移相和宽带共模抑制的平衡式宽带移相器，并且具有小尺寸、低损耗和结构简单易加工的优点。The present invention uses a half-wavelength coupled microstrip line and combines a pair of coupled microstrip lines whose two ends are respectively connected to capacitors and microstrip lines to realize the balance of broadband differential mode impedance matching, broadband differential mode phase shifting and broadband common mode suppression type broadband phase shifter, and has the advantages of small size, low loss, simple structure and easy processing.
以上所述的具体实施方案，对本发明的目的、技术方案和有益效果进行了进一步的详细说明，所应理解的是，以上所述仅为本发明的具体实施方案而已，并非用以限定本发明的范围，任何本领域的技术人员，在不脱离本发明的构思和原则的前提下所做出的等同变化与修改，均应属于本发明保护的范围。The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concepts and principles of the present invention shall fall within the protection scope of the present invention.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211114951.2A CN115458882B (en) | 2022-09-14 | 2022-09-14 | Balance type broadband phase shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211114951.2A CN115458882B (en) | 2022-09-14 | 2022-09-14 | Balance type broadband phase shifter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115458882A CN115458882A (en) | 2022-12-09 |
| CN115458882B true CN115458882B (en) | 2023-08-25 |
Family
ID=84302519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211114951.2A Active CN115458882B (en) | 2022-09-14 | 2022-09-14 | Balance type broadband phase shifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115458882B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW496011B (en) * | 2000-11-21 | 2002-07-21 | Darfon Electronics Corp | Balanced type band pass filter |
| CN2874794Y (en) * | 2006-04-04 | 2007-02-28 | 华为技术有限公司 | Balance and unbalance converter |
| CN103107390A (en) * | 2013-01-23 | 2013-05-15 | 南京理工大学 | Balance type radio frequency electronically-controlled band-pass filter with bandwidth control |
| CN106816678A (en) * | 2017-01-18 | 2017-06-09 | 大连海事大学 | A Straddling Directional Coupler with Arbitrary Output Amplitude and Phase |
| CN111710946A (en) * | 2020-06-08 | 2020-09-25 | 南通大学 | A Broadband Single-Ended Microstrip Short Line Bandpass Filter |
| CN113013566A (en) * | 2021-03-21 | 2021-06-22 | 南通大学 | Switchable microstrip double balun |
| CN114050382A (en) * | 2021-11-16 | 2022-02-15 | 南通大学 | Balanced type broadband voltage-controlled adjustable phase shifter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5012883B2 (en) * | 2009-12-11 | 2012-08-29 | 株式会社村田製作所 | Laminated balance filter |
| US20130027273A1 (en) * | 2011-07-27 | 2013-01-31 | Tdk Corporation | Directional coupler and wireless communication device |
-
2022
- 2022-09-14 CN CN202211114951.2A patent/CN115458882B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW496011B (en) * | 2000-11-21 | 2002-07-21 | Darfon Electronics Corp | Balanced type band pass filter |
| CN2874794Y (en) * | 2006-04-04 | 2007-02-28 | 华为技术有限公司 | Balance and unbalance converter |
| CN103107390A (en) * | 2013-01-23 | 2013-05-15 | 南京理工大学 | Balance type radio frequency electronically-controlled band-pass filter with bandwidth control |
| CN106816678A (en) * | 2017-01-18 | 2017-06-09 | 大连海事大学 | A Straddling Directional Coupler with Arbitrary Output Amplitude and Phase |
| CN111710946A (en) * | 2020-06-08 | 2020-09-25 | 南通大学 | A Broadband Single-Ended Microstrip Short Line Bandpass Filter |
| CN113013566A (en) * | 2021-03-21 | 2021-06-22 | 南通大学 | Switchable microstrip double balun |
| CN114050382A (en) * | 2021-11-16 | 2022-02-15 | 南通大学 | Balanced type broadband voltage-controlled adjustable phase shifter |
Non-Patent Citations (1)
| Title |
|---|
| Balanced Microstrip Filtering Phase Shifter Using Three-end Folded Coupled Lines;Yi Nie等;《2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition 》;1-3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115458882A (en) | 2022-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108493602B (en) | Dual-polarized duplex antenna and dual-frequency base station antenna array formed by same | |
| CN104953256B (en) | Broadband circle polarized flat plate array antenna | |
| US8704723B2 (en) | Differential dipole antenna system with a coplanar radiating structure and transceiver device | |
| CN110444840B (en) | Double-frequency differential band-pass filter based on stub load resonator | |
| CN108172958B (en) | Periodic slow wave transmission line unit based on coplanar waveguide | |
| CN106816678B (en) | A Transverse Directional Coupler with Arbitrary Output Amplitude and Phase | |
| CN104037477A (en) | Multi-band tunable microstrip band-pass filter | |
| CN101728620A (en) | Asymmetric coplanar waveguide directional coupler | |
| CN113258243B (en) | A Broadband Miniaturized Hybrid Loop with Smooth Output Phase | |
| CN106602196B (en) | The power divider and its design method for supporting microwave and millimeter wave frequency range to cooperate | |
| CN106972224B (en) | A balanced microwave phase shifter for antenna | |
| CN114649656B (en) | Dual-passband filtering phase shifter | |
| CN113964467B (en) | Balance-unbalanced type in-phase filtering power divider based on three-wire coupling | |
| CN111710946A (en) | A Broadband Single-Ended Microstrip Short Line Bandpass Filter | |
| CN115911838A (en) | Broadband common-mode absorption differential feed type dual-mode patch antenna and antenna array | |
| CN105977600A (en) | Small-size three-passband differential power divider | |
| CN115458882B (en) | Balance type broadband phase shifter | |
| CN108028450B (en) | kinds of filtering units and filters | |
| CN112086721A (en) | Broadband 2D and Differential Phase Comparison Network Based on Multilayer Microstrip Slot Coupling Structure | |
| CN216488446U (en) | Duplexer based on rectangular micro-coaxial parallel pseudo interdigital resonator technology | |
| CN112563711B (en) | Rectangular patch-half-mode substrate integrated waveguide hybrid 90-degree directional coupler | |
| CN113270701B (en) | Miniaturized filtering phase shifter | |
| CN113224494B (en) | Dual-band power unequal directional coupler based on microstrip-slot line coupling line | |
| CN114204241A (en) | Microstrip-Open Slotline Coupled Dual Band 90 Degree Directional Coupler | |
| CN110137644B (en) | High-selectivity wide-stop-band balance filter based on slot line |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |