L-band four-phase shifter
By improving the linear phase-shifting topology and enclosed connectors, combined with the power supply network and dielectric elements, the problems of narrow bandwidth, large size and high loss of existing phase shifters have been solved, achieving bandwidth expansion, size reduction and power capacity improvement.
Patent Information
- Application Number
- CN202423142476.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing phase shifters have narrow bandwidth, large size, high insertion loss, small power capacity, and fixed structure that cannot be flexibly adjusted.
By employing an improved linear phase-shifting topology and enclosed connectors, combined with an impedance-matched feed network and dielectric elements, and through the combination of multiple phase-shifting units and enclosed connectors, it achieves enhanced flexibility, increased bandwidth, reduced size, and increased power capacity.
It effectively expands the bandwidth of the phase shifter, reduces its size, decreases insertion loss, increases power capacity, and improves the flexibility of the phase shifter.
Smart Images
Figure CN223785297U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of microwave equipment technology, and in particular to an L-band four-phase shifter. Background Technology
[0002] Existing switch-line phase shifters have narrow bandwidth, high insertion loss, and small power capacity; loaded-line phase shifters are large in size, and their operating bandwidth gradually narrows and insertion loss increases with the increase of phase shift; ferrite phase shifters are large in size and have long response time; mechanical phase shifters have long response time, large size, and poor reliability due to limitations in the processing and assembly of mechanical structures.
[0003] In addition, the existing phase shifter structure is relatively fixed and cannot be flexibly adjusted according to system needs.
[0004] Therefore, there is an urgent need for effective means to expand the bandwidth of phase shifters, reduce their size, decrease their insertion loss, and increase their power capacity. Utility Model Content
[0005] To address the shortcomings of existing technologies, this application aims to provide an L-band four-phase shifter. By improving the linear phase-shifting topology and using corresponding enclosed connectors, this application effectively enhances the flexibility of the phase shifter, expands its bandwidth, reduces its size, decreases its insertion loss, and increases its power capacity.
[0006] To achieve the above objectives, the L-band four-phase shifter provided in this application includes at least two phase shifting units and a closed connector connected therebetween; wherein, each phase shifting unit has at least one open end, the open end forming an inward interface, and a connecting lug is provided on the outside of the interface; the closed connector has an open interface that extends through the front and back, the open interface abutting against the outside of the inward interface of the phase shifting unit, and a connector is also provided outside the open interface, the connector being fixedly connected to the connecting lug on the outside of the inward interface of the phase shifting unit.
[0007] Optionally, as described in any of the above-mentioned L-band four-phase shifters, the open interface of the enclosed connector is further provided with a feed network and corresponding dielectric elements that are impedance-matched to the phase shifting unit, which are electrically connected to the phase shifting units at the front and rear ends of the enclosed connector to provide a signal path.
[0008] Optionally, as described in any of the above-mentioned L-band four-phase shifters, the connectors on the enclosed connector are connecting ears symmetrically arranged at the upper and lower ends of the open interface; each connecting ear is bolted together.
[0009] Optionally, in any of the above-described L-band four-phase shifters, the housing of the enclosed connector and the phase shifting unit are both made of one-piece molded metal parts, and the interface between the enclosed connector and the phase shifting unit is also coated with metal glue for bonding and fixing.
[0010] Optionally, as described in any of the above L-band four-phase shifters, the feed network and corresponding dielectric elements in the enclosed connector are disposed on a PCB board, and the feed networks and dielectric elements on the upper and lower sides of the PCB board are configured to be symmetrical and consistent, and electrically connected to the dielectric phase shifter in the phase shifting unit.
[0011] Optionally, as described in any of the above-mentioned L-band four-phase shifters, wherein the dielectric phase shifter in the phase shifting unit includes: 22.5°, 45°, 90°, and 180° phase shifting unit circuits.
[0012] Optionally, as described in any of the above, the L-band four-phase shifter has the dielectric phase shifter in the phase shifting unit configured as a meandering line structure comprising several branches.
[0013] Optionally, as described in any of the above-mentioned L-band four-phase shifters, the support of the dielectric phase shifter includes: a main path, which is configured in a serpentine shape and connects the input and output interfaces of the phase shifting unit; a loading support, which extends from the main path away from the bending direction of the serpentine structure, and has a bend towards the main path at the end of the loading support. The end of the loading support is also connected to a capacitor C1, an inductor L1 and a resistor R1, wherein the capacitor C1 and the resistor R1 are respectively grounded, and the inductor L1 is connected between the common terminal of the capacitor C1 and the resistor R1 and the loading support.
[0014] Optionally, as described in any of the above, an L-band four-phase shifter is provided, wherein the loading stub is further connected to a PIN diode switch, the cathode of which is connected to a serpentine structure and the anode of which is connected to an inductor L1.
[0015] Compared with existing solutions, this application has the following technical advantages:
[0016] The L-band four-phase shifter provided in this application includes at least two phase-shifting units and a closed connector connected therebetween, so as to obtain the required phase shift through the cooperation between the phase-shifting units. In this application, the phase-shifting unit is connected to the open interface of the closed connector through its open end, and impedance matching with the phase-shifting unit is achieved by utilizing the feed network of the closed connector and the corresponding dielectric element. By flexibly selecting the appropriate phase-shifting units and closed connectors, this application can effectively improve the flexibility of the phase shifter by utilizing the feed network, dielectric element, and corresponding dielectric phase-shifting plate structure, and effectively expand the phase shifter bandwidth, reduce its size, reduce its insertion loss, and increase its power capacity.
[0017] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present application and form part of the specification. Together with the embodiments of the present application, they serve to explain the present application but do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 This is a schematic diagram of the connection method of the L-band four-phase shifter according to this application;
[0020] Figure 2 This is a schematic diagram of the enclosed connector used in the L-band four-phase shifter of this application;
[0021] Figure 3 This is a schematic diagram of the phase shifting unit in the L-band four-phase shifter of this application. Detailed Implementation
[0022] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.
[0023] In this application, "inner" and "outer" refer to the direction from the metal casing toward the internal medium phase shifting plate relative to the phase shifting unit itself, and vice versa; rather than a specific limitation on the device mechanism of this application.
[0024] The term "connection" as used in this application can mean a direct connection between components or an indirect connection between components through other components.
[0025] The L-band four-phase shifter provided in this application includes Figure 1 As shown: at least two phase shifting units 1 and a closed connector 2 connected therebetween;
[0026] Each phase shifting unit 1 is configured to have at least one open end. In some cases, for the need to connect with other phase shifting units, the corresponding phase shifting unit can be configured to form an inward interface that cooperates with the closed connector with open ends at both the front and rear ends, and a connecting ear is provided on the outside of the interface.
[0027] Each enclosed connector 2 is configured with an open interface that extends from front to back, and is connected to the outside of the inner interface of the phase shifting unit 1 through the open interface, thereby connecting different phase shifting units to achieve phase shifting. To ensure the overall sealing of the device, this application generally also provides a connector outside the open interface, which is fixedly connected to the connecting lug on the outside of the inner interface of the phase shifting unit 1.
[0028] In practical implementation, this application generally refers to Figure 2 As shown, the open interface of the enclosed connector 2 is also provided with a power supply network and corresponding dielectric elements that are impedance matched with the phase shifting unit 1. The power supply network and corresponding dielectric elements are set on the PCB board 21. The power supply networks and dielectric elements on the upper and lower sides of the PCB board 21 can be set symmetrically to facilitate the stable electrical connection of the dielectric phase shifter in the phase shifting unit 1 through the power supply network on either side of the PCB board 21, providing an electrical connection and signal path for the phase shifting unit 1 set at the front and rear ends of the enclosed connector 2.
[0029] In a wider range of applications, this application can simplify the connector 22 on the closed connector 2 to a symmetrically arranged connecting ear installed at the upper and lower ends of the open interface; the connecting ear can be fixedly connected to the connecting ear on the outside of the phase shifting unit 1 interface by bolts.
[0030] To ensure effective transmission and phase shifting of the microwave signal in the L-band four-phase shifter of this application, the housing of the enclosed connector 2 and the phase shifting unit 1 is generally designed as a single-piece metal structure. To ensure stable signal transmission between the enclosed connector 2 and the phase shifting unit 1 without leakage or interference caused by unstable electrical connections, this application preferably uses metal adhesive to bond and fix the interfaces. Thus, this application can obtain the required system output through flexible combinations of the 22.5°, 45°, 90°, and 180° dielectric phase shifting unit circuits in several phase shifting units 1.
[0031] Specific reference Figure 3 As shown, the dielectric phase shifter in the phase shifting unit 1 of this application can be configured as a meandering line structure including several branches. The main path can be configured as a serpentine path, connecting the input and output interfaces of the phase shifting unit 1 to provide phase shifting;
[0032] The serpentine main road can also be connected to a loading branch, which extends from the main road away from the bending direction of the serpentine structure, and has a bend towards the main road at the end of the loading branch. The end of the loading branch is also connected to a capacitor C1, an inductor L1 and a resistor R1, wherein the capacitor C1 and the resistor R1 are grounded respectively, and the inductor L1 is connected between the common terminal of the capacitor C1 and the resistor R1 and the loading branch to provide impedance matching, frequency matching and bias.
[0033] In this application, the loading support, in addition to being disposed on the dielectric phase shifter of the phase shifting unit 1, can also be further disposed in the PCB board of the enclosed connector to provide impedance matching for the power supply network and corresponding dielectric elements thereon. To reduce signal loss under different plugging methods and avoid impact on dielectric elements in high-power scenarios, this application can also optionally connect a PIN diode switch in the loading support. By connecting the cathode of the PIN diode switch to a serpentine structure and its anode to inductor L1, the impact of electrical signals is limited, and the impedance matching between units is improved.
[0034] It will be understood by those skilled in the art that the above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An L-band four-phase shifter, characterized in that, It includes at least two phase-shifting units (1) and a closed connector (2) connected therebetween; The phase shifting unit (1) has at least one open end, which forms an inward interface and has a connecting ear on the outside of the interface; The closed connector (2) has an open interface that runs through the front and back. The open interface is connected to the outside of the inner interface of the phase shifting unit (1). A connector is also provided outside the open interface. The connector is fixedly connected to the connecting ear on the outside of the inner interface of the phase shifting unit (1).
2. The L-band four-phase shifter as described in claim 1, characterized in that, The open interface of the closed connector (2) is also provided with a power supply network and corresponding dielectric elements that are impedance matched with the phase shifting unit (1), which are electrically connected to the phase shifting unit (1) at the front and rear ends of the closed connector (2) to provide a signal path.
3. The L-band four-phase shifter as described in claim 1, characterized in that, The connector (22) on the closed connector (2) is a connector ear that is symmetrically arranged at the upper and lower ends of the open interface; The connecting lugs are bolted together.
4. The L-band four-phase shifter as described in claim 3, characterized in that, The housings of the enclosed connector (2) and the phase shifting unit (1) are both made of one-piece metal parts, and the interface between the enclosed connector (2) and the phase shifting unit (1) is also coated with metal glue for bonding and fixing.
5. The L-band four-phase shifter as described in claim 3, characterized in that, The power supply network and corresponding dielectric elements in the closed connector (2) are set on the PCB board (21). The power supply network and dielectric elements on the upper and lower sides of the PCB board (21) are set to be symmetrical and consistent, and are electrically connected to the dielectric phase shifter in the phase shifting unit (1).
6. The L-band four-phase shifter as described in claim 5, characterized in that, The dielectric phase shifter in the phase shifter unit (1) includes: 22.5°, 45°, 90°, and 180° phase shifter unit circuits.
7. The L-band four-phase shifter as described in claim 5, characterized in that, The dielectric phase shifter in the phase shifting unit (1) is configured as a meandering line structure including several branches.
8. The L-band four-phase shifter as described in claim 5, characterized in that, The segments of the dielectric phase shifter include: The main road is configured in a serpentine shape, connecting the input and output interfaces of the phase shifting unit (1); The loading branch extends from the main road away from the bending direction of the serpentine structure, and has a bend towards the main road at its end. The end of the loading branch is also connected to a capacitor C1, an inductor L1 and a resistor R1, wherein the capacitor C1 and the resistor R1 are grounded respectively, and the inductor L1 is connected between the common terminal of the capacitor C1 and the resistor R1 and the loading branch.
9. The L-band four-phase shifter as described in claim 8, characterized in that, The loading support is also connected to a PIN tube switch, whose cathode is connected to a serpentine structure and whose anode is connected to an inductor L1.