CN110137640A - T shape knot waveguide duplexer - Google Patents
T shape knot waveguide duplexer Download PDFInfo
- Publication number
- CN110137640A CN110137640A CN201910506055.2A CN201910506055A CN110137640A CN 110137640 A CN110137640 A CN 110137640A CN 201910506055 A CN201910506055 A CN 201910506055A CN 110137640 A CN110137640 A CN 110137640A
- Authority
- CN
- China
- Prior art keywords
- filter
- shape
- power splitter
- duplexer
- waveguide duplexer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a kind of T shape knot waveguide duplexer, including E-T shape power splitter, the output end of the E-T shape power splitter is separately connected the filter of different passbands, and the total work end of the E-T shape power splitter is provided with tuning protrusion.Metallic membrane is arranged at intervals in filter.The configuration of the present invention is simple is easy to make, solves the problems, such as that two working frequency range spans of duplexer are big, under the premise of keeping duplexer basic performance indices, improves electricity function index.
Description
Technical field
The present invention relates to microwave passive components, and in particular to a kind of T shape knot waveguide duplexer.
Background technique
Duplexer belongs to microwave passive component, and the separation of receiving and transmitting signal may be implemented, and is mainly used for connecting antenna and transmitting-receiving
Machine.In the modern communication technology, the performance of duplexer plays a crucial role in the entire system.Duplexer is being surveyed
The application of control, precise guidance and Military Electronics confrontation etc. is also more and more extensive.Traditional waveguide duplexer is with circulator and two
A filter is connected, and two working frequency range spans are big.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of T shape knot waveguide duplexers, and it is big to solve work on hand frequency range span
The problem of.
Technical solution: T shape knot waveguide duplexer of the present invention, including E-T shape power splitter, the E-T shape power splitter
Output end be separately connected the filters of different passbands, the total work end of the E-T shape power splitter is provided with tuning protrusion.
Wherein, metallic membrane is arranged at intervals in the filter.
In order to play Stepped Impedance matching effect, the bandwidth of operation of E-T shape power splitter is improved, the tuning raised (2) is
Second order ladder protrusion, wherein the first rank ledge width is 3.5-5mm mm, it is highly 0.5-1mm, second-order ledge width is 1-
2mm is highly 0.5-1mm.
The freedom degree for reducing design parameter, simplifies the complexity of design, and the metallic membrane is symmetrical arranged in two separate ranks
In filter.
The length of the filter be 43-46mm, metallic membrane (5) with a thickness of 0.5-1.5mm.
The utility model has the advantages that the configuration of the present invention is simple, being easy to make, solving that two working frequency range spans of duplexer are big to ask
Topic improves electricity function index under the premise of keeping duplexer basic performance indices.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is return loss of the present invention, the analogous diagram of Insertion Loss, wherein a is return loss S11 analogous diagram, and b is branch 1
The S21 analogous diagram of (filter I), c are the S31 analogous diagram of branch 2 (filter II).
Specific embodiment
Invention is further explained with reference to the accompanying drawing.
As shown in Figs. 1-2, T shape knot waveguide duplexer, including E-T shape power splitter 1, the output end difference of E-T shape power splitter 1
The first filter 3 and second filter 4 of different passbands are connected, the total work end of E-T shape power splitter 1 is provided with the tuning of second order ladder
Protrusion 2.Metallic membrane 5 is arranged at intervals in filter.Metallic membrane 5 is symmetricly set in filter in two separate ranks.Wherein, it tunes
Raised (2) are second order ladder protrusion, wherein the first rank ledge width is 3.5-5mm mm, it is highly 0.5-1mm, second-order protrusion
Width is 1-2mm, is highly 0.5-1mm.The length of filter be 43-46mm, metallic membrane (5) with a thickness of 0.5-1.5mm.
Metallic membrane plays the role of equivalent inductance in filter, completes the LC equivalent circuit for realizing bandpass filter.Second order ladder is convex
It plays structure and plays Stepped Impedance matching effect in duplexer, the bandwidth of operation of E-T shape power splitter, two Lu Gongfen of broadband can be improved
Device is achieved.In addition second order protrusion can be independent up and down, mounts and dismounts convenient for duplexer, is also convenient for fine tuning matching.Metal
Diaphragm thickness wants moderate, otherwise influences equivalent inductance value, so that filter passband is drifted about, bandwidth reduces, and loss increases.Together
When, metallic membrane is too thick but also waveguide duplexer becomes large-sized, and is unfavorable for compact design.It is thick according to design analysis metallic membrane
Degree is advisable within the scope of 0.5-1.5mm.
Tuning structure is realized by second order ladder protrusion, wherein the first rank ledge width is 4.45mm, it is highly 0.83mm, the
Second order ledge width is 1.59mm, is highly 0.83mm.Three port interface size, that is, rectangular waveguide filters of duplexer
Port are as follows: long side 7.12mm, short side 3.56mm, the length of filter are 45.00mm, wherein metallic membrane with a thickness of
1.00mm.Gap between narrow side two diaphragms symmetrical above and below is respectively S1mm, S2mm, S3mm, S4mm, the metal in narrow side
Diaphragm is respectively D1mm, D2mm, D3mm with a distance from intermediate a pair of of metallic membrane.Specific value is shown in Table shown in 1 and table 6.
Gap numerical value between 1 narrow side of table, two diaphragms symmetrical above and below
Distance values of the metallic membrane from intermediate a pair of of metallic membrane in 2 narrow side of table
As can be seen from Figure 2 filtering channel I centre frequency 37.0GHz, bandwidth 500MHz, return loss are greater than 15dB,
It is less than 0.8dB with interior Insertion Loss, filtering channel II centre frequency 38.2GHz, bandwidth 500MHz, return loss is greater than 15dB, in
Insertion Loss is less than 0.8dB, and experiment shows that the T shape knot millimeter waveguide duplexer frequency response is good, has fabulous engineer application
Value.
Claims (5)
1. a kind of T shape knot waveguide duplexer, which is characterized in that including E-T shape power splitter (1), the E-T shape power splitter (1)
Output end is separately connected the filter of different passbands, and it is raised (2) that the total work end of the E-T shape power splitter (1) is provided with tuning.
2. T shape knot waveguide duplexer according to claim 1, which is characterized in that be arranged at intervals with gold in the filter
Belong to diaphragm (5).
3. T shape knot waveguide duplexer according to claim 1, which is characterized in that the tuning raised (2) is second order ladder
Protrusion, wherein the first rank ledge width is 3.5-5mm mm, it is highly 0.5-1mm, second-order ledge width is 1-2mm, height
For 0.5-1mm.
4. T shape knot waveguide duplexer according to claim 2, which is characterized in that the metallic membrane (5) is symmetrical in two separate ranks
It is arranged in filter.
5. T shape knot waveguide duplexer according to claim 2, which is characterized in that the length of the filter is 43-
46mm, metallic membrane (5) with a thickness of 0.5-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910506055.2A CN110137640A (en) | 2019-06-12 | 2019-06-12 | T shape knot waveguide duplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910506055.2A CN110137640A (en) | 2019-06-12 | 2019-06-12 | T shape knot waveguide duplexer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110137640A true CN110137640A (en) | 2019-08-16 |
Family
ID=67581221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910506055.2A Pending CN110137640A (en) | 2019-06-12 | 2019-06-12 | T shape knot waveguide duplexer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110137640A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290183A (en) * | 2020-09-29 | 2021-01-29 | 中国航空工业集团公司雷华电子技术研究所 | High-isolation high-power synthesizer based on waveguide structure |
| CN114497932A (en) * | 2021-12-28 | 2022-05-13 | 江苏亨通太赫兹技术有限公司 | Millimeter wave duplexer inserted into EBG structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205882138U (en) * | 2016-06-27 | 2017-01-11 | 北京航天光华电子技术有限公司 | Ku frequency channel compact waveguide duplexer |
| CN108110386A (en) * | 2017-09-27 | 2018-06-01 | 波达通信设备（广州）有限公司 | Bidirectional output waveguide duplexer |
-
2019
- 2019-06-12 CN CN201910506055.2A patent/CN110137640A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205882138U (en) * | 2016-06-27 | 2017-01-11 | 北京航天光华电子技术有限公司 | Ku frequency channel compact waveguide duplexer |
| CN108110386A (en) * | 2017-09-27 | 2018-06-01 | 波达通信设备（广州）有限公司 | Bidirectional output waveguide duplexer |
Non-Patent Citations (3)
| Title |
|---|
| CHARLES R等: "A Duplexing Ferrite Adjustable-Phase Power Divider", 《2006 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST》 * |
| 张洪林等: "基于波导混合环的毫米波宽带功率分配/合成器的设计", 《微波学报》 * |
| 郭敏: "毫米波波导双工器的设计", 《万方学位论文》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290183A (en) * | 2020-09-29 | 2021-01-29 | 中国航空工业集团公司雷华电子技术研究所 | High-isolation high-power synthesizer based on waveguide structure |
| CN112290183B (en) * | 2020-09-29 | 2022-02-22 | 中国航空工业集团公司雷华电子技术研究所 | High-isolation high-power synthesizer based on waveguide structure |
| CN114497932A (en) * | 2021-12-28 | 2022-05-13 | 江苏亨通太赫兹技术有限公司 | Millimeter wave duplexer inserted into EBG structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190816 |