CN115332751A - Three-frequency two-port combiner - Google Patents
Three-frequency two-port combiner Download PDFInfo
- Publication number
- CN115332751A CN115332751A CN202210955964.6A CN202210955964A CN115332751A CN 115332751 A CN115332751 A CN 115332751A CN 202210955964 A CN202210955964 A CN 202210955964A CN 115332751 A CN115332751 A CN 115332751A
- Authority
- CN
- China
- Prior art keywords
- cavity
- resonance
- cover plate
- rod
- port
- 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.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000006880 cross-coupling reaction Methods 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
- H01P1/2138—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using hollow waveguide filters
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Non-Reversible Transmitting Devices (AREA)
Abstract
The invention discloses a three-frequency two-port combiner, which comprises a cavity and a tuning cover plate, and is characterized in that the upper end of the cavity is fixedly provided with the tuning cover plate, the top of the tuning cover plate is also provided with a first cover plate, and the first cover plate covers the tuning cover plate and is connected with the cavity; a first input port and a second input port are arranged on one side of the cavity, and an output port is arranged on the other side of the cavity; feed PCB boards are arranged on one sides of the first input port, the second input port and the output port; a plurality of resonant rods are arranged in the cavity, a tuning screw rod penetrates through the tuning cover plate, and the bottom of the tuning screw rod is inserted into the resonant rods for tuning; be equipped with first division board and second division board in the cavity, first division board and second division board divide the resonance pole into a plurality of different resonance branches. The invention relates to a method for preparing a high-temperature-resistant ceramic material.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a three-frequency two-port combiner.
Background
The combiner is generally used at a transmitting end, and is used for combining two or more paths of radio frequency signals transmitted from different transmitters into one path of radio frequency signals which are sent to a radio frequency device for antenna transmission, and meanwhile, mutual influence among signals of various ports is avoided. A combiner typically has two or more input ports and only one output port. The port isolation is an important index, which is used to describe the capability of two paths of signals without mutual influence, and is generally required to be over 20dB. The 3dB bridge combiner has two input ports and two output ports, and is usually used for synthesizing two wireless carrier frequencies and feeding the synthesized wireless carrier frequencies into an antenna or a distribution system. If only one output port is used, the other output port needs to be connected with a load of 50W, and then the signal has 3dB loss after being combined. Sometimes both output ports are used, and there is no load required and no 3dB loss.
The receiving and sending of signal mobile phone are combined to one antenna. In the GSM system, because the transmitting and receiving are not in the same time slot, the mobile phone can omit the duplexer for isolating the transmitting and receiving, and only a simple transmitting and receiving combiner is needed to combine the transmitting and receiving signals to one antenna without mutual interference.
Disclosure of Invention
The invention aims to provide a three-frequency two-port combiner, and aims to solve the problems in the background technology. In order to realize the purpose, the invention adopts the technical scheme that:
the three-frequency two-port combiner comprises a cavity and a tuning cover plate, wherein the upper end of the cavity is fixedly provided with the tuning cover plate, the top of the tuning cover plate is also provided with a first cover plate, and the first cover plate covers the tuning cover plate and is connected with the cavity; a first input port and a second input port are arranged on one side of the cavity, and an output port is arranged on the other side of the cavity; feed PCBs are arranged on one sides of the first input port, the second input port and the output port; a plurality of resonant rods are arranged in the cavity, a tuning screw rod penetrates through the tuning cover plate, and the bottom of the tuning screw rod is inserted into the resonant rods for tuning; a first partition plate and a second partition plate are arranged in the cavity and divide the resonant rod into a plurality of different resonant branches; the connecting rod of first input port is connected with the first public chamber on right side upper portion, first public chamber divide into two way upper and lower formation first cavity and second cavity, the connecting rod of second input port is connected with the second public chamber of right side lower part, the public chamber of second divides into resonance bar holding chamber through three vertical division board, and the bottom of cavity still is equipped with the installing support.
Furthermore, the working frequency band of the first input port is 690-788MHz, and the working frequency band of the second input port is 791-862MHz or 880-960MHz.
Further, first division board is the design of U type, and U type bottom forms the third cavity, be equipped with third independent resonance pole and mutual inductance resonance pole group in the third cavity, mutual inductance resonance group includes two pairs of mutual inductance resonance poles, mutual inductance resonance pole is established respectively in the both sides of first division board, connect through capacitive cross coupling original paper between the mutual inductance resonance pole.
Furthermore, the capacitive cross coupling element comprises a fixed seat, a flying rod and a resonant disc, the flying rod penetrates through the fixed seat, the resonant disc is connected to both ends of the flying rod, and the resonant disc is inductively coupled with the mutual inductance resonant rod.
Furthermore, the first cover plate is a waterproof cover plate.
Furthermore, a second resonance branch is arranged in the second cavity, and a resonance rod of the second resonance branch is smaller than a resonance rod at the first input port.
Furthermore, a second independent resonant rod is further arranged in the resonant rod accommodating cavity and is respectively in inductive coupling with the adjacent resonant rods.
Furthermore, a second independent resonant rod is further arranged in the resonant rod accommodating cavity and is respectively in inductive coupling with the adjacent resonant rods.
Furthermore, a first independent resonance rod is arranged at the top of the first partition plate and forms a surrounding space, and the first independent resonance rod is inductively coupled with the mutual inductance resonance rod.
The invention has the beneficial effects that: the resonance columns are coupled with the output ports, and the combiner can have different coupling frequencies by setting the sizes and the number of the resonance columns, so that the communication of specific frequencies is met. Specifically, the signal input ports respectively input 690-788MHz and 791-862MHz or 880-960MHz signal inputs for coupling. The invention has the advantages of simple structure, low production cost, convenient assembly, capability of improving the production efficiency and better coupling performance.
Drawings
FIG. 1 is an overall schematic view provided by an embodiment of the present invention;
FIG. 2 is a schematic view of a split structure provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first inner conductor and a second inner conductor according to an embodiment of the present invention;
fig. 4 is a schematic bottom structure diagram of a tuning cover plate according to an embodiment of the invention.
Wherein, in the figures, the respective reference numerals:
1. a first input port; 2. a second input port; 3. an output port; 4. feeding the PCB; 41. a first step position; 42. a second step position; 43. a third step; 5. tuning the cover plate; 51. a tuning screw; 6. a waterproof cover plate; 7. mounting a bracket; 8. a cavity; 9. a capacitive cross-coupling element; 91. a fixed seat; 92. a flying bar; 93. a resonant disk; 10. (ii) a 11. A first independent resonant rod; 12. a mutual inductance resonance rod; 13. a first partition plate; 14. a first cavity; 15. a second resonant branch; 16. a second cavity; 17. a second common cavity; 18. a second independent resonance rod; 19. a second partition plate; 20. a vertical partition plate; 21. a third independent resonant bar.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. As used herein, the terms "vertical," "horizontal," "left," "right," and the like are for illustrative purposes only and do not represent the only embodiments, and as used herein, the terms "upper," "lower," "left," "right," "front," "rear," and the like are used in a positional relationship with reference to the drawings.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 4, an embodiment of the present invention provides a three-frequency two-port combiner, which includes a cavity 8 and a tuning cover plate 5, wherein the tuning cover plate 5 is fixedly disposed at an upper end of the cavity 8, and a first cover plate is further disposed at a top of the tuning cover plate 5 and connected to the cavity 8 after covering the tuning cover plate 5; a first input port 1 and a second input port 2 are arranged on one side of the cavity 8, and an output port 3 is arranged on the other side of the cavity 8; a feed PCB (printed Circuit Board) 4 is arranged on one side of each of the first input port 1, the second input port 2 and the output port 3; a plurality of resonance rods are arranged in the cavity 8, a tuning screw 51 penetrates through the tuning cover plate 5, and the bottom of the tuning screw 51 is inserted into the resonance rods for tuning; a first partition plate 13 and a second partition plate 19 are arranged in the cavity 8, and the resonant rod is divided into a plurality of different resonant branches by the first partition plate 13 and the second partition plate 19; the connecting rod of the first input port 1 is connected with a first common cavity on the upper portion of the right side, the first common cavity is divided into an upper path and a lower path to form a first cavity 14 and a second cavity 16, the connecting rod of the second input port 2 is connected with a second common cavity 17 on the lower portion of the right side, and the second common cavity 17 is divided into a resonant rod accommodating cavity through three vertical partition plates 20. The bottom of the cavity 8 is also provided with a mounting bracket 7, and the mounting bracket 7 is used for mounting the integral product on a mounting frame.
In this embodiment, the first input port 1 has an operating frequency band of 690-788MHz, and the second input port 2 has an operating frequency band of 791-862MHz or 880-960MHz.
In this embodiment, the first separating plate 13 is U-shaped, the bottom of the U-shape forms a third cavity 10, a third independent resonant rod 21 and a mutual inductance resonant rod 12 set are arranged in the third cavity 10, the mutual inductance resonant group includes two pairs of mutual inductance resonant rods 12, the mutual inductance resonant rods 12 are respectively arranged on two sides of the first separating plate 13, and the mutual inductance resonant rods 12 are connected through capacitive cross coupling elements. The top of the first partition plate 13 forms a surrounding type space and is provided with a first independent resonance rod 11 inside, and the first independent resonance rod 11 is inductively coupled with a mutual induction resonance rod 12.
In this embodiment, the capacitive cross-coupling element includes a fixed base 91, a flying rod 92, and a resonant disk 93, the flying rod 92 is disposed through the fixed base 91, the resonant disk 93 is connected to both ends of the flying rod 92, and the resonant disk 93 is inductively coupled to the mutual-inductance resonant rod 12.
In this embodiment, the first cover plate is a waterproof cover plate 6.
In this embodiment, a second resonant branch 15 is disposed in the second cavity 16, and a resonant rod of the second resonant branch 15 is smaller than that of the first input port 1.
In this embodiment, the resonant rod accommodating cavity is further provided with a second independent resonant rod 18, and the second independent resonant rods 18 are respectively inductively coupled with the adjacent resonant rods.
In this embodiment, the resonant rod accommodating cavity is further provided with a second independent resonant rod 18, and the second independent resonant rods 18 are respectively inductively coupled with the adjacent resonant rods.
Through practical tests, the relevant performance parameter table of the product is as follows:
the invention has simple and ingenious structure, realizes the input of 690-788MHz and 791-862MHz or 880-960MHz signals at the signal input port respectively, and finally finishes the signal output at the combined port, and the integral signal return loss is lower than 20dB.
The above embodiments are only for illustrating the invention and are not to be construed as limiting the invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention, therefore, all equivalent technical solutions also belong to the scope of the invention, and the scope of the invention is defined by the claims.
Claims (9)
1. The three-frequency two-port combiner comprises a cavity and a tuning cover plate and is characterized in that the upper end of the cavity is fixedly provided with the tuning cover plate, the top of the tuning cover plate is also provided with a first cover plate, and the first cover plate covers the tuning cover plate and is connected with the cavity; a first input port and a second input port are arranged on one side of the cavity, and an output port is arranged on the other side of the cavity; feed PCB boards are arranged on one sides of the first input port, the second input port and the output port; a plurality of resonance rods are arranged in the cavity, a tuning screw rod penetrates through the tuning cover plate, and the bottom of the tuning screw rod is inserted into the resonance rods for tuning; a first partition plate and a second partition plate are arranged in the cavity and divide the resonant rod into a plurality of different resonant branches; the connecting rod of first input port is connected with the first public chamber on right side upper portion, first public chamber divide into two way formation first cavity and second cavity from top to bottom, the connecting rod of second input port is connected with the second public chamber of right side lower part, the public chamber of second divides into resonance bar holding chamber through three vertical division board, and the bottom of cavity still is equipped with the installing support.
2. The three-frequency two-port combiner of claim 1, wherein: the working frequency band of the first input port is 690-788MHz, and the working frequency band of the second input port is 791-862MHz or 880-960MHz.
3. The three-frequency two-port combiner of claim 2, wherein: first division board is the design of U type, and U type bottom becomes the third cavity, be equipped with the independent resonance bar of third and mutual inductance resonance bar group in the third cavity, mutual inductance resonance group includes two pairs of mutual inductance resonance bars, mutual inductance resonance bar establishes the both sides at first division board respectively, connect through capacitive cross coupling original paper between the mutual inductance resonance bar.
4. The three-frequency two-port combiner of claim 3, wherein: the capacitive cross coupling element comprises a fixing seat, a flying rod and a resonant disc, wherein the flying rod penetrates through the fixing seat, the two ends of the flying rod are connected with the resonant disc, and the resonant disc is inductively coupled with the mutual inductance resonant rod.
5. The three-frequency two-port combiner of claim 1, wherein: the first cover plate is a waterproof cover plate.
6. The three-frequency two-port combiner of claim 1, wherein: and a second resonance branch is arranged in the second cavity, and a resonance rod of the second resonance branch is smaller than a resonance rod at the first input port.
7. The three-frequency two-port combiner of claim 1, wherein: and a second independent resonance rod is further arranged in the resonance rod accommodating cavity and is inductively coupled with the adjacent resonance rods respectively.
8. The three-frequency two-port combiner of claim 1, wherein: and a second independent resonant rod is further arranged in the resonant rod accommodating cavity and is respectively in inductive coupling with the adjacent resonant rods.
9. The three-frequency two-port combiner of claim 3, wherein: the top of first division board with form surrounding type space and inside and be equipped with first independent resonance pole, first independent resonance pole with mutual inductance resonance pole inductive coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210955964.6A CN115332751B (en) | 2022-08-10 | 2022-08-10 | Three-frequency two-port combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210955964.6A CN115332751B (en) | 2022-08-10 | 2022-08-10 | Three-frequency two-port combiner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115332751A true CN115332751A (en) | 2022-11-11 |
| CN115332751B CN115332751B (en) | 2023-11-21 |
Family
ID=83921330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210955964.6A Active CN115332751B (en) | 2022-08-10 | 2022-08-10 | Three-frequency two-port combiner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115332751B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673991U (en) * | 2010-06-01 | 2010-12-15 | 南京斯坦德通信工程有限公司 | CDMA/GSM/WLAN three-frequency mixer |
| CN201749921U (en) * | 2010-05-18 | 2011-02-16 | 深圳市华思科技有限公司 | DCS/3G/WLAN three-frequency combiner |
| CN201749922U (en) * | 2010-06-02 | 2011-02-16 | 深圳市华思科技有限公司 | GSM-DCS/TDA-TDB-TDC four-frequency mixer |
| CN202871953U (en) * | 2012-11-02 | 2013-04-10 | 广东通宇通讯股份有限公司 | Three-frequency combiner |
| US20150077195A1 (en) * | 2013-09-17 | 2015-03-19 | National Instruments Corporation | Ultra-Broadband Diplexer Using Waveguide and Planar Transmission Lines |
| CN106450640A (en) * | 2016-11-11 | 2017-02-22 | 成都合仓电子科技有限公司 | Waterproof one-three power divider |
| US20170141446A1 (en) * | 2015-11-13 | 2017-05-18 | CommScope Italy S.r.I. | Filter assemblies, tuning elements and method of tuning a filter |
| CN208433499U (en) * | 2018-07-18 | 2019-01-25 | 沧州天华移动通信科技有限公司 | Two frequency combiner of GSM&TDF&TDA&TDE/WLAN |
| CN211406291U (en) * | 2020-07-29 | 2020-09-01 | 江苏猫度云科医疗科技有限公司 | Broadband wireless signal covering device with multi-frequency band integration |
| EP3709434A1 (en) * | 2019-03-14 | 2020-09-16 | CommScope Technologies LLC | Band-stop filter, transmission line for band-stop filter and multiplexer |
| WO2021093456A1 (en) * | 2019-11-13 | 2021-05-20 | 京信通信技术(广州)有限公司 | Combiner |
-
2022
- 2022-08-10 CN CN202210955964.6A patent/CN115332751B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201749921U (en) * | 2010-05-18 | 2011-02-16 | 深圳市华思科技有限公司 | DCS/3G/WLAN three-frequency combiner |
| CN201673991U (en) * | 2010-06-01 | 2010-12-15 | 南京斯坦德通信工程有限公司 | CDMA/GSM/WLAN three-frequency mixer |
| CN201749922U (en) * | 2010-06-02 | 2011-02-16 | 深圳市华思科技有限公司 | GSM-DCS/TDA-TDB-TDC four-frequency mixer |
| CN202871953U (en) * | 2012-11-02 | 2013-04-10 | 广东通宇通讯股份有限公司 | Three-frequency combiner |
| US20150077195A1 (en) * | 2013-09-17 | 2015-03-19 | National Instruments Corporation | Ultra-Broadband Diplexer Using Waveguide and Planar Transmission Lines |
| US20170141446A1 (en) * | 2015-11-13 | 2017-05-18 | CommScope Italy S.r.I. | Filter assemblies, tuning elements and method of tuning a filter |
| CN106450640A (en) * | 2016-11-11 | 2017-02-22 | 成都合仓电子科技有限公司 | Waterproof one-three power divider |
| CN208433499U (en) * | 2018-07-18 | 2019-01-25 | 沧州天华移动通信科技有限公司 | Two frequency combiner of GSM&TDF&TDA&TDE/WLAN |
| EP3709434A1 (en) * | 2019-03-14 | 2020-09-16 | CommScope Technologies LLC | Band-stop filter, transmission line for band-stop filter and multiplexer |
| WO2021093456A1 (en) * | 2019-11-13 | 2021-05-20 | 京信通信技术(广州)有限公司 | Combiner |
| CN211406291U (en) * | 2020-07-29 | 2020-09-01 | 江苏猫度云科医疗科技有限公司 | Broadband wireless signal covering device with multi-frequency band integration |
Non-Patent Citations (3)
| Title |
|---|
| UWE ROSENBERG ET AL.: "A Novel Frequency-Selective Power Combiner/Divider in Single-Layer Substrate Integrated Waveguide Technology", 《IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS》, vol. 23, no. 8, XP011523460, DOI: 10.1109/LMWC.2013.2269039 * |
| 潘宁等: "基于公共腔的新型同轴腔体双频合路器研制", 《电子元件与材料》, vol. 33, no. 9 * |
| 陈其豪等: "一种高隔离度的腔体双频合路器的设计", 《电子器件》, vol. 39, no. 2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115332751B (en) | 2023-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6961544B1 (en) | Structure of a radio-frequency front end | |
| US9503150B2 (en) | Antenna and RF front-end arrangement | |
| CN105379008B (en) | Antenna with shared ground structure | |
| CN209948056U (en) | Antenna filter unit and radio unit | |
| US8222969B2 (en) | Duplexer module | |
| CN107612568A (en) | A kind of radio-frequency front-end receiving circuit and its implementation | |
| CN102113230A (en) | Full-duplex wireless transceiver design | |
| US20200028527A1 (en) | Multi-Frequency Transceiver and Base Station | |
| CN102291157B (en) | Multi-system channel multiplex circuit | |
| CN209374644U (en) | A kind of filter and communication radio frequency device | |
| CN203690467U (en) | Micro-strip power divider of integrated design | |
| CN105428807A (en) | Multi-mode slot antenna and mobile terminal | |
| CN105656505A (en) | Two-transmitter two-receiver antenna coupling unit for microwave digital radios | |
| CN202268462U (en) | TD smart antenna and built-in micro-strip combiner thereof | |
| EP2270926B1 (en) | An active antenna element | |
| CN115332751A (en) | Three-frequency two-port combiner | |
| CN102522614B (en) | Miniature high-selectivity frequency independently controllable tri-band bandpass filter | |
| CN214480594U (en) | Radio frequency circuit and electronic device | |
| KR20020068934A (en) | A filter and duplexer filter composed cavity including dielectric resonator | |
| WO2017040819A1 (en) | Compact antenna feeder with dual polarization | |
| CN221150270U (en) | Branch feed coupling cavity filter | |
| CN212909484U (en) | Carrier aggregation circuit | |
| CN1960224B (en) | Signal multiplexing and demultiplexing device | |
| CN216214003U (en) | Filter and communication device | |
| CN116318233B (en) | Multimode multi-frequency radio frequency front-end circuit, radio frequency front-end device and mobile phone |
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 |