CN206349474U - A kind of E band duplexers with transmission zero - Google Patents
A kind of E band duplexers with transmission zero Download PDFInfo
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- CN206349474U CN206349474U CN201621472624.4U CN201621472624U CN206349474U CN 206349474 U CN206349474 U CN 206349474U CN 201621472624 U CN201621472624 U CN 201621472624U CN 206349474 U CN206349474 U CN 206349474U
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Abstract
The utility model discloses a kind of E band duplexers with transmission zero, including a public port and two input/output ports, there are six resonators respectively between public port and two input/output ports, resonator position is mutually staggered serpentine-like line arrangement, has a projection at outermost resonator.Have at input/output port and a butterfly structure for being used to polarised direction torsion turning 90 degrees is provided with 90 degree of turning structures, public port.The utility model it is a kind of be similar to serpentine by way of avoid partition wall it is too thin caused by leakage problem.The butterfly structure of public port, turns round polarizations direction and turn 90 degrees, and is directly realized the angle for having 90 degree between the duplexer public port and input/output port.At input/output port, using waveguide 90 degree turning structure, overcome in high band, the problem of waveguide 90 degree turning structure processing difficulties.The utility model have it is simple in construction, be easy to processing, the advantage such as performance is more excellent.
Description
Technical field
The utility model belongs to electronic communication technology field, more particularly to a kind of new E-band with transmission zero
Duplexer.
Background technology
E-band due to its working frequency it is high, frequency band is very wide, and frequency spectrum resource enriches, and is the study hotspot of 5G communications.E-
The exploitation of band 5G communication base stations, which be unable to do without, works in the high performance waveguide duplexer of the frequency band.
Different from the duplexer of conventional frequency range, E-band duplexers are because its working frequency is in 80G, and frequency is very high, size
Very little, it is not possible to debug.Therefore it is very high to the required precision for designing and processing.Therefore be difficult as conventional duplexer,
The Out-of-band rejection of duplexer is improved by definite transmission zero point, reduces the interior Insertion Loss of band of duplexer.The E-band of prior art
Duplexer is entirely all without transmission zero on Chebyshev's response of standard, response curve.Therefore the duplexer is met
The general high low side of technical requirements is required for 8 resonators, and excessive resonator will necessarily increase the interior Insertion Loss of band of duplexer, increase
Group delay flatness and increase cost and manufacture difficulty.
In design method, the E-band reported at present duplexer is all the design side of the conventional waveguide filter used
Formula is realized.If therefore being splitted from H faces, it must weld, because partition wall is very thin, typically all 0.5mm partition wall, therefore be difficult to protect
Leakage is not present in QED complete be welded；If being splitted from E faces to weld, but requires machining for two symmetrical cavitys and directly increase
The processing cost doubled.
Other communication system typically requires the angle for having 90 degree between the common port of duplexer and input/output port, is easy to
The installation of antenna and transceiver, but the duplexer of prior art can not all be directly realized by 90 degree between common port and port of folder
Angle, is all to need the polarizer of extra one 90 degree of increase, so adds additional cost and be degrading performance.
The content of the invention
The utility model purpose be it is big for existing E-band duplexers difficulty of processing, the high defect of cost there is provided
It is a kind of simple in construction, it is easy to processing, the E-band duplexers with transmission zero with a good performance.
The utility model to achieve the above object, is adopted the following technical scheme that：
A kind of E-band duplexers with transmission zero, including a public port and two input/output ports, it is described
There are six resonators respectively between public port and two input/output ports, it is characterised in that：Resonator position phase
Mutually stagger serpentine-like line arrangement, has a projection at the outermost resonator.
It is further characterized by：The central shaft of the public port central shaft and two input/output ports is mutually put down
OK.
Further：There are 90 degree of turning structure, 90 degree of turning structures are by the at the input/output port
One step and second step composition；One is provided with the public port is used to turning round polarised direction into the butterfly knot turning 90 degrees
Structure.
Machining Arc is provided between the second step both sides and wave guide wall.
It is preferred that：The duplexer is along H faces subdivision, and Combination Welding is formed with cavity and cover plate, the cavity and lid
Plate surface is silver-plated, and the resonator is located in the cavity, and two input/output port openings are located at the cavity bottom surface；
The public port opening is located at cover plate top surface.
The butterfly structure is located in the cover plate.
The utility model realizes transmission zero by way of multimode, once with more excellent performance.Only need to 6
Individual resonant cavity can be achieved with the suppression requirement that original 8 resonators can be only achieved, therefore with more preferable Insertion Loss and group delay
Performance.
The utility model it is a kind of be similar to serpentine by way of realize, from H faces subdivision, silver-plated welding.Due to using
Be that the mode of serpentine is realized, therefore avoid partition wall it is too thin caused by leakage problem.
Public port designs a disc structure, by the structure, and polarizations direction is turned round and turn 90 degrees, and is directly realized this
There is 90 degree of angle between duplexer public port and input/output port.
At input/output port, using a kind of new waveguide 90 degree turning structure, the structure can be overcome in high band,
The problem of waveguide 90 degree turning structure processing difficulties.
The utility model have it is simple in construction, be easy to processing, the advantage such as performance is more excellent.
Brief description of the drawings
Fig. 1,2 are the utility model internal cavity structural representation.
Fig. 3 is the utility model parts structural representation.
Fig. 4 is input/output port close-up schematic view.
Fig. 5 is public port close-up schematic view.
Embodiment
A kind of E-band duplexers with transmission zero as shown in Figure 1, 2, including a public port and two inputs it is defeated
Exit port 2, has six resonators 3 respectively between public port and two input/output ports 2, the position of resonator 3 is mutually wrong
Serpentine-like line arrangement is opened, there is a projection 4 at outermost resonator 3.The structure can ensure between two resonators 3
Partition wall have enough width, it is to avoid because failure welding brings the gap of leakage caused by partition wall is too thin, while also avoiding weldering
Solder(ing) paste flows into the risk of intra resonant cavity when connecing.The part of projection 4 on resonator 3, can increase by one on transmission response
Individual zero point so that the duplexer only needs to six resonators with regard to that can reach the suppression that common eight resonators of duplexer can be only achieved
Performance.As shown in Fig. 1,2,4, there are 90 degree of turning structure 6 at input/output port 2,90 degree of turning structures 6 are by the
One step 61 and second step 62 are constituted；Second step 62 simply in centre stretching, is provided with processing between both sides and wave guide wall
Circular arc, is easy to feed.Being provided with one at public port as shown in Fig. 1,2,5 is used to turning round polarised direction into the butterfly knot turning 90 degrees
Structure 5.The structure can be overcome in high band, the problem of waveguide 90 degree turning structure processing difficulties.
Fig. 3 is the part drawing of the E-band duplexers, as illustrated, whole duplexer is along H faces subdivision, the only He of cavity 11
The main body of 12 two parts of cover plate, wherein duplexer is processed in cavity 11, and two openings of input/output port 2 are located at cavity 11
Bottom surface.The butterfly structure 5 of the twist-reflector of public port and public port is processed inside cover plate 12.Cover plate 12 and cavity 11 are all
It is silver-plated, welding.
The utility model have it is simple in construction, be easy to processing, the advantage such as performance is more excellent.
Claims (6)
1. a kind of E-band duplexers with transmission zero, including a public port and two input/output ports, the public affairs
There are six resonators respectively between port and two input/output ports altogether, it is characterised in that：The resonator position is mutual
Stagger serpentine-like line arrangement, has a projection at the outermost resonator.
2. the E-band duplexers according to claim 1 with transmission zero, it is characterised in that：The public port center
The central shaft of axle and two input/output ports is parallel to each other.
3. the E-band duplexers according to claim 2 with transmission zero, it is characterised in that：The input/output port
Place has 90 degree of turning structures, and 90 degree of turning structures are made up of first step and second step；The public port
Place, which is provided with one, to be used to turning round polarised direction into the butterfly structure turning 90 degrees.
4. the E-band duplexers according to claim 3 with transmission zero, it is characterised in that：The second step both sides
Machining Arc is provided between wave guide wall.
5. the E-band duplexers with transmission zero according to claim 3 or 4, it is characterised in that：The duplexer is along H
Face subdivision, Combination Welding is formed with cavity and cover plate, and the cavity and lid surface are silver-plated, and the resonator is located at described
In cavity, two input/output port openings are located at the cavity bottom surface；The public port opening is located at cover plate top surface.
6. the E-band duplexers according to claim 5 with transmission zero, it is characterised in that：The butterfly structure is located at
In the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621472624.4U CN206349474U (en) | 2016-12-30 | 2016-12-30 | A kind of E band duplexers with transmission zero |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621472624.4U CN206349474U (en) | 2016-12-30 | 2016-12-30 | A kind of E band duplexers with transmission zero |
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| CN206349474U true CN206349474U (en) | 2017-07-21 |
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| CN201621472624.4U Active CN206349474U (en) | 2016-12-30 | 2016-12-30 | A kind of E band duplexers with transmission zero |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785255A (en) * | 2016-12-30 | 2017-05-31 | 江苏贝孚德通讯科技股份有限公司 | A kind of E band duplexers with transmission zero |
| CN108306088A (en) * | 2017-12-28 | 2018-07-20 | 江苏贝孚德通讯科技股份有限公司 | Rectangular waveguide bimodulus resonant cavity, waveguide dual mode filter, double-mode duplexer |
-
2016
- 2016-12-30 CN CN201621472624.4U patent/CN206349474U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785255A (en) * | 2016-12-30 | 2017-05-31 | 江苏贝孚德通讯科技股份有限公司 | A kind of E band duplexers with transmission zero |
| CN108306088A (en) * | 2017-12-28 | 2018-07-20 | 江苏贝孚德通讯科技股份有限公司 | Rectangular waveguide bimodulus resonant cavity, waveguide dual mode filter, double-mode duplexer |
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