CN113314814B - Phase shifter and base station antenna - Google Patents
Phase shifter and base station antenna Download PDFInfo
- Publication number
- CN113314814B CN113314814B CN202110555407.0A CN202110555407A CN113314814B CN 113314814 B CN113314814 B CN 113314814B CN 202110555407 A CN202110555407 A CN 202110555407A CN 113314814 B CN113314814 B CN 113314814B
- Authority
- CN
- China
- Prior art keywords
- cavity
- coaxial cable
- phase shifter
- hole
- microstrip line
- 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
Images
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
- H01P1/184—Strip line phase-shifters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Waveguide Aerials (AREA)
Abstract
The present disclosure relates to the field of communications technologies, and in particular, to a phase shifter and a base station antenna. The phase shifter includes: the cavity is provided with a through hole; the microstrip line is arranged in the cavity; the feed converter is positioned on the outer side of the cavity and connected with the cavity, and an electroplated layer is arranged on the outer surface of the feed converter; and the outer surface of the coaxial cable is connected with the feed converter, and the inner core of the coaxial cable is electrically connected with the microstrip line through the through hole. In the phase shifter provided by the disclosure, a microstrip line is arranged in a cavity, the feed converter is connected outside the cavity, the outer surface of a coaxial cable is connected with the feed converter, and an inner core of the coaxial cable is electrically connected with the microstrip line through a through hole. The feed converter with the electroplated layer is arranged outside the cavity, so that the surface of the cavity can be effectively prevented from being electroplated, the preparation cost of the phase shifter is reduced, the process is simplified, and the time required by the process is shortened.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a phase shifter and a base station antenna.
Background
The phase shifter of the base station antenna is one of core components of the electric tuning antenna, generally, the phase shifter is provided with a plurality of input and output ports, and the input and output ports need to be connected to other components of the antenna by using coaxial cables.
In the prior art, the phase shifter cavity is usually made of an aluminum die-cast cavity or an aluminum profile extrusion process, the aluminum profile or the die-cast cavity needs to be electroplated, and then the outer conductor of the coaxial cable is welded on the conductor shell of the phase shifter. Electrically powering the phase shifter cavity increases the phase shifter cost and process time.
Disclosure of Invention
To solve the technical problem or at least partially solve the technical problem, the present disclosure provides a phase shifter and a base station antenna.
The present disclosure provides a phase shifter, including:
the cavity is provided with a through hole;
the microstrip line is arranged in the cavity;
the feeding converter is positioned on the outer side of the cavity and connected with the cavity, and an electroplated layer is arranged on the outer surface of the feeding converter;
the outer surface of the coaxial cable is connected with the feed converter, and the inner core of the coaxial cable is electrically connected with the microstrip line through the through hole.
In the phase shifter provided by the disclosure, a microstrip line is arranged in a cavity, the feed converter is connected outside the cavity, the outer surface of a coaxial cable is connected with the feed converter, and an inner core of the coaxial cable is electrically connected with the microstrip line through a through hole. The feed converter with the electroplated layer is arranged outside the cavity, so that the surface of the cavity can be effectively prevented from being electroplated, the preparation cost of the phase shifter is reduced, the process is simplified, and the time required by the process is reduced.
And moreover, the feeding converter is arranged outside the cavity, so that the shape and the size of the feeding converter can be conveniently set according to actual requirements. The size and the shape of the feed converter are set according to requirements, so that the purpose of balancing the impedance of the microstrip line and the coaxial cable in the cavity is achieved, and the research and development cost is reduced. In addition, the matching relation between the microstrip line in the cavity and the coaxial cable outside the cavity can be changed by adjusting the size and the shape of the feed converter, the frequency response of the transmission line in an impedance circular diagram can be changed, and the conversion impedance characteristic between the microstrip line and the coaxial cable can be more converged by the proper size and the proper shape, so that the aim of signal continuity is fulfilled.
Optionally, the feed converter comprises a housing for connection with the cavity and a conductive member for electrically connecting the inner core of the coaxial cable and the microstrip line.
Optionally, an insulating member is disposed between the housing and the conductive member.
Optionally, the conductive part includes a metal conductive rod and a boss disposed at one end of the metal conductive rod, the insulating part is sleeved outside the metal conductive rod, and a limiting portion for cooperating with the boss is disposed on one side of the insulating part.
Optionally, a side of the boss facing away from the insulating member is provided with a first groove for mating with an inner core of the coaxial cable.
Optionally, a second groove for matching with the outer surface of the coaxial cable is provided on each of the housing and the insulating member.
Optionally, the feed converter includes a housing for connecting with the cavity, a via hole is provided at an end of the housing close to the through hole, at least part of the coaxial cable is located in the housing, and an inner core of the coaxial cable sequentially penetrates through the via hole and the through hole to be electrically connected with the microstrip line.
Optionally, the through hole is opposite to the through hole, and the through hole is located in the orthographic projection of the shell on the cavity.
Optionally, the housing is threadedly connected to the cavity.
The present disclosure also provides a base station antenna, including the above phase shifter.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a phase shifter according to an embodiment of the disclosure;
fig. 2 is a schematic structural diagram of a feeding converter according to an embodiment of the disclosure;
FIG. 3 is a schematic diagram of another phase shifter according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another phase shifter according to an embodiment of the present disclosure.
Wherein, 1-cavity; 11-a through hole; a 2-feed converter; 21-a housing; 22-an insulating member; 23-a metal conductive rod; 24-a boss; 25-a first groove; 26-a second groove; 27-a via hole; 3-a coaxial cable; 31-inner core.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
In the prior art, it is usually necessary to electroplate the phase shifter housing 1 and then weld the outer conductor of the coaxial line to the phase shifter conductor shell. Most of the phase shifter cavity 1 in the existing design is made of an aluminum die-casting cavity 1 or an aluminum profile extrusion process, and the aluminum profile or the die-casting cavity 1 needs to be electroplated, so that the cost and the process time of the phase shifter are increased.
In view of the above, the embodiments of the present disclosure provide a phase shifter and a base station antenna, which can solve the above technical problems.
Fig. 1 is a schematic structural diagram of a phase shifter according to an embodiment of the present disclosure, fig. 2 is a schematic structural diagram of a feed converter 2 according to an embodiment of the present disclosure, fig. 3 is a schematic structural diagram of another phase shifter according to an embodiment of the present disclosure, and fig. 4 is a schematic structural diagram of another phase shifter according to an embodiment of the present disclosure. As shown in fig. 1 to 4, an embodiment of the present disclosure provides a phase shifter, including:
the cavity body 1 is provided with a through hole 11;
the microstrip line is arranged in the cavity 1;
the feed converter 2 is positioned on the outer side of the cavity 1 and connected with the cavity 1, and an electroplated layer is arranged on the outer surface of the feed converter 2;
the outer surface of the coaxial cable 3 is connected with the feed converter 2, and the inner core 31 of the coaxial cable 3 is electrically connected with the microstrip line through the through hole 11.
In the phase shifter provided by the embodiment of the present disclosure, a microstrip line is disposed in the cavity 1, the feed converter 2 is connected outside the cavity 1, the outer surface of the coaxial cable 3 is connected with the feed converter, and the inner core 31 of the coaxial cable 3 is electrically connected with the microstrip line through the through hole 11. The feed converter 2 with the electroplated layer is arranged outside the cavity 1, so that the surface of the cavity 1 can be effectively prevented from being electroplated, the preparation cost of the phase shifter is reduced, the process is simplified, and the time required by the process is reduced.
Moreover, the feeding converter 2 is arranged outside the cavity 1, so that the shape and the size of the feeding converter 2 can be set conveniently according to actual requirements. The purpose of balancing the impedance of the microstrip line and the coaxial cable 3 in the cavity 1 is achieved by setting the size and the shape of the feed converter 2 according to requirements, so that the research and development cost is reduced. In addition, the matching relation between the microstrip line in the cavity 1 and the coaxial cable 3 outside the cavity 1 can be changed by adjusting the size and the shape of the feed converter 2, so that the frequency response of the transmission line in an impedance circular diagram can be changed, and the conversion impedance characteristic between the microstrip line and the coaxial cable 3 can be more converged by proper size and shape, thereby achieving the purpose of signal continuity.
As shown in fig. 2, in some embodiments, the feed transformer 2 includes a housing 21 for connection with the cavity 1 and a conductive member for electrically connecting the inner core 31 and the microstrip line of the coaxial cable 3.
The feed converter 2 includes conductive parts electrically connected to the inner core 31 of the coaxial cable 3 and the microstrip line, respectively, so as to realize the electrical connection between the coaxial cable 3 and the microstrip line. And, through casing 21 and cavity 1 are connected, casing 21 has played the effect of supporting electrically conductive part to the stability that electrically conductive part and coaxial cable 3 are connected has been guaranteed.
Specifically, an insulating member 22 is provided between the case 21 and the conductive member.
In this embodiment, the housing 21 is made of a metal material, and in order to ensure that the conductive component realizes the electrical connection between the coaxial cable 3 and the microstrip line and avoid a short circuit, the insulating component 22 is disposed between the conductive component and the housing 21.
Specifically, the conductive part includes a metal conductive rod 23 and a boss 24 disposed at one end of the metal conductive rod 23, the insulating part 22 is sleeved outside the metal conductive rod 23, and a limiting portion for cooperating with the boss 24 is disposed at one side of the insulating part 22.
In this embodiment, the axis of the metal conductive rod 23 is parallel to the axis of the through hole 11, one end of the metal conductive rod 23 extends into the cavity 1 and is electrically connected to the microstrip line, and the other end extends to the side of the insulating part 22 away from the cavity 1 and is electrically connected to the coaxial cable 3.
In the above-mentioned feed converter 2, in order to prevent the conductive part from separating from the housing 21, a boss 24 is provided at one end of the metal conductive rod 23 away from the cavity 1, a limiting part for cooperating with the boss 24 is provided at one side of the insulating part 22, and the displacement of the conductive part in the direction close to the cavity 1 can be effectively prevented by the cooperation of the limiting part and the boss 24, thereby improving the stability and reliability of the phase shifter structure.
In the present embodiment, the coaxial cable 3 is placed in a direction perpendicular to the arrangement direction of the conductive member, that is, the axis of the coaxial cable 3 is perpendicular to the axis of the conductive member. In order to facilitate a stable engagement of the inner core 31 at one end of the coaxial cable 3 with the conductive member, the side of the boss 24 facing away from the insulating member 22 is provided with a first groove 25 for engagement with the inner core 31 of the coaxial cable.
The inner core 31 is matched with the groove, and the groove limits the position of the inner core 31, so that the inner core 31 can be prevented from being deviated and separated from the conductive component. In addition, through the matching of the inner core 31 and the groove, the contact area between the inner core 31 and the conductive component is increased, and the stability of the electrical connection between the inner core 31 and the conductive component is improved, so that the stability of the electrical connection between the coaxial cable 3 and the conductive component is improved.
Since the coaxial cable 3 is disposed in a direction perpendicular to the conductive member, the coaxial cable 3 is disposed in a direction perpendicular to the feeding converter 2, that is, the axis of the coaxial cable 3 is perpendicular to the axial direction of the feeding converter 2. In this embodiment, in order to avoid the interference of the contact position of the inner core 31 of the coaxial cable 3 and the conductive member from the outside, the position where the inner core 31 and the conductive member are connected is lower than the end surfaces of the shell 21 and the insulating member 22, so when the inner core 31 and the conductive member are connected, the shell 21 is easily interfered with the shell 21 and the insulating member 22. In order to avoid interference, the housing 21 and the insulating member 22 are both provided with a second groove 26 for matching with the outer surface of the coaxial cable, and the second groove 26 on the coaxial cable 3 and the second groove 26 on the housing 21 are correspondingly arranged, so that an avoiding groove is formed to ensure the connection of the coaxial cable 3 and the conductive member.
Meanwhile, through the matching of the coaxial cable 3 and the second groove 26, the second groove 26 and the coaxial cable 3 play a role in limiting, and the coaxial cable 3 is effectively prevented from deviating. When coaxial cable 3 installed, coaxial cable 3's surface and casing 21 welding, through with coaxial cable 3 and the cooperation of second recess 26, can effectively avoid among the welding process coaxial cable 3 to take place the displacement, guarantee to move the yield of looks ware assembly.
In some embodiments, the feed converter 2 includes a housing 21 for connecting with the cavity 1, one end of the housing 21 near the through hole 11 is provided with a through hole 27, at least a part of the coaxial cable is located in the housing 21, and an inner core 31 of the coaxial cable sequentially passes through the through hole 27 and the through hole 11 to be electrically connected with the microstrip line.
In the above embodiment, the housing 21 covers the coaxial cable 3, and the side surface of the housing 21 close to the through hole 11 is provided with the via hole 27, so that the inner core 31 penetrates through the housing 21 and the cavity 1 to be electrically connected with the microstrip line.
As shown in fig. 3, specifically, the coaxial cable 3 may be disposed in a direction parallel to the cavity 1, that is, an axis of the coaxial cable 3 is parallel to the cavity 1, and a through hole 27 is formed in a side of the shell 21 corresponding to the inner core 31 in the coaxial cable 3, so that the inner core 31 may extend out of the shell 21.
As shown in fig. 4, specifically, the coaxial cable 3 is also arranged in a manner perpendicular to the cavity 1, that is, the axis of the coaxial cable 3 is perpendicular to the cavity 1, and a through hole 27 is provided on a side of the shell 21 corresponding to the inner core 31, so that the inner core 31 extends out of the shell 21.
Specifically, the side of the shell 21 corresponding to the inner core 31 is disposed with the through hole 11, and the inner core 31 may extend into the cavity 1 along the axis of the shell 21.
In particular, the through hole 11 is located within the orthographic projection of the housing 21 on the cavity 1. Moreover, after the shell 21 is connected with the cavity 1, the through hole 11 can be completely covered by the shell 21, so that external impurities are prevented from entering the cavity 1 through the through hole 11, the microstrip line is prevented from being short-circuited, the stability of the coaxial cable 3 in electric connection with the microstrip line is ensured, and the yield of the phase shifter is improved.
In some embodiments, the housing 21 is threaded with the chamber 1. The surface plating of the cavity 1 and the welding in the subsequent process will increase the undesirable risk, and therefore, in this embodiment, the housing 21 is screwed to the cavity 1 to ensure the yield of the phase shifter.
In this embodiment, the frequency response of the transmission line in the impedance circular diagram is changed by adjusting the feed adapter, and the normalized impedance converges at the center of the circle. The feed converter and the matching method in the embodiment of the disclosure can effectively improve the impedance bandwidth of the radiating element, have the advantages of high efficiency and simplicity, and are easy to process and low in cost.
The embodiment of the disclosure also provides a base station antenna, which includes the phase shifter.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A phase shifter, comprising:
the cavity body (1), wherein a through hole (11) is formed in the cavity body (1);
the microstrip line is arranged in the cavity (1);
the feeding converter (2) is positioned on the outer side of the cavity (1) and connected with the cavity (1), and an electroplated layer is arranged on the outer surface of the feeding converter (2);
the outer surface of the coaxial cable (3) is connected with the feed converter (2), and an inner core (31) of the coaxial cable (3) is electrically connected with the microstrip line through the through hole (11);
the feed converter (2) comprises a shell (21) connected with the cavity (1) and a conductive part for electrically connecting an inner core (31) of the coaxial cable (3) and the microstrip line;
an insulating member (22) is provided between the housing (21) and the conductive member;
and the shell (21) and the insulating part (22) are respectively provided with a second groove (26) used for being matched with the outer surface of the coaxial cable.
2. The phase shifter according to claim 1, wherein the conductive member comprises a conductive metal rod (23) and a boss (24) disposed at one end of the conductive metal rod (23), the insulating member (22) is sleeved on an outer side of the conductive metal rod (23), and a limiting portion for cooperating with the boss (24) is disposed at one side of the insulating member (22).
3. Phase shifter in accordance with claim 2, characterized in that the side of the boss (24) facing away from the insulating part (22) is provided with a first groove (25) for cooperation with an inner core (31) of the coaxial cable.
4. Phase shifter in accordance with claim 1, characterized in that the feed converter (2) comprises a housing (21) for connection to the cavity (1), that one end of the housing (21) near the through hole (11) is provided with a via (27), that at least part of the coaxial cable is located inside the housing (21), and that a core (31) of the coaxial cable is electrically connected to the microstrip line through the via (27) and the through hole (11) in sequence.
5. Phase shifter in accordance with claim 4, characterized in that the through hole (27) is arranged opposite the through hole (11) and that the through hole (11) is located in the orthographic projection of the housing (21) on the cavity (1).
6. Phase shifter in accordance with any of claims 1-5, characterized in that the housing (21) is screwed to the cavity (1).
7. A base station antenna comprising the phase shifter of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110555407.0A CN113314814B (en) | 2021-05-21 | 2021-05-21 | Phase shifter and base station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110555407.0A CN113314814B (en) | 2021-05-21 | 2021-05-21 | Phase shifter and base station antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113314814A CN113314814A (en) | 2021-08-27 |
| CN113314814B true CN113314814B (en) | 2022-05-20 |
Family
ID=77374071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110555407.0A Active CN113314814B (en) | 2021-05-21 | 2021-05-21 | Phase shifter and base station antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113314814B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4837529A (en) * | 1988-03-24 | 1989-06-06 | Honeywell, Inc. | Millimeter wave microstrip to coaxial line side-launch transition |
| CN2615883Y (en) * | 2003-03-14 | 2004-05-12 | 北京通力环电气股份有限公司 | Transmission line impedance matching device |
| JP2004207256A (en) * | 2004-04-13 | 2004-07-22 | Masayoshi Murata | Balanced-to-unbalanced conversion device for high-frequency plasma generation, plasma surface treatment device constituted of the balanced-to-unbalanced conversion device, and plasma surface treatment method |
| CN106450629A (en) * | 2016-09-18 | 2017-02-22 | 西安电子工程研究所 | Millimeter-wave-based microstrip-coaxial transformational structure |
| CN106785362A (en) * | 2016-12-02 | 2017-05-31 | 上海无线电设备研究所 | A kind of antenna and its application for array antenna monitoring |
| CN106887705A (en) * | 2017-03-10 | 2017-06-23 | 武汉虹信通信技术有限责任公司 | A kind of cavity type phase shifter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205141132U (en) * | 2015-11-23 | 2016-04-06 | 福建省泉州华鸿通讯有限公司 | PCB board antenna of ultrabroad band |
| CN107634290A (en) * | 2017-08-28 | 2018-01-26 | 广州司南天线设计研究所有限公司 | A kind of new coupling phase shifter |
-
2021
- 2021-05-21 CN CN202110555407.0A patent/CN113314814B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4837529A (en) * | 1988-03-24 | 1989-06-06 | Honeywell, Inc. | Millimeter wave microstrip to coaxial line side-launch transition |
| CN2615883Y (en) * | 2003-03-14 | 2004-05-12 | 北京通力环电气股份有限公司 | Transmission line impedance matching device |
| JP2004207256A (en) * | 2004-04-13 | 2004-07-22 | Masayoshi Murata | Balanced-to-unbalanced conversion device for high-frequency plasma generation, plasma surface treatment device constituted of the balanced-to-unbalanced conversion device, and plasma surface treatment method |
| CN106450629A (en) * | 2016-09-18 | 2017-02-22 | 西安电子工程研究所 | Millimeter-wave-based microstrip-coaxial transformational structure |
| CN106785362A (en) * | 2016-12-02 | 2017-05-31 | 上海无线电设备研究所 | A kind of antenna and its application for array antenna monitoring |
| CN106887705A (en) * | 2017-03-10 | 2017-06-23 | 武汉虹信通信技术有限责任公司 | A kind of cavity type phase shifter |
Non-Patent Citations (1)
| Title |
|---|
| 微波组件同轴-微带连接转换工艺研究;孙乎浩等;《电子工艺技术》;20170918;第38卷(第5期);第276-279页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113314814A (en) | 2021-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100356196B1 (en) | Two-frequency antenna device and mobile communication unit | |
| JP6588403B2 (en) | Coaxial connector | |
| US5618205A (en) | Wideband solderless right-angle RF interconnect | |
| CN1238573A (en) | Antenna apparatus for mobile terminal equipment | |
| KR20030094023A (en) | A single or dual polarized molded dipole antenna having integrated feed structure | |
| US9755379B1 (en) | Capacitively coupled connector junctions having parallel signal paths and related connectors and methods | |
| US5426439A (en) | Horizontal printed circuit loop antenna with balun, fed with collinear vertical dipole antenna, providing omnidirectional dual polarization | |
| CN106887705B (en) | A kind of cavity type phase shifter | |
| US4170014A (en) | Antenna coil | |
| CN113314814B (en) | Phase shifter and base station antenna | |
| CN117276889A (en) | Phase shifter and base station antenna | |
| WO2021248887A1 (en) | Feed network, antenna system, and base station | |
| US7030826B2 (en) | Microwave transition plate for antennas with a radiating slot face | |
| CN113258271A (en) | AFU antenna structure | |
| CN102157770B (en) | Switching device of coaxial cable and air microstrip line | |
| WO2017135875A1 (en) | Antenna feeding network comprising a coaxial connector | |
| CN101976790A (en) | Radio-frequency cable assembly for communication equipment | |
| CN214849031U (en) | AFU antenna structure | |
| CN213124700U (en) | Radio frequency connector and antenna | |
| CN107959146A (en) | Coaxial connector | |
| WO2021238210A1 (en) | Phase shifter integrated with feed and antenna using same | |
| CN202167723U (en) | Radio frequency coaxial connector | |
| CN114678668A (en) | Antenna device and phase shifter | |
| CN110661063B (en) | Substrate integrated waveguide feed broadband coaxial rotary joint | |
| CN108780959B (en) | Conductor coupling device for connecting conductors |
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 |