CN202454700U - Waveguide filter with built-in isolators - Google Patents
Waveguide filter with built-in isolators Download PDFInfo
- Publication number
- CN202454700U CN202454700U CN201220053994XU CN201220053994U CN202454700U CN 202454700 U CN202454700 U CN 202454700U CN 201220053994X U CN201220053994X U CN 201220053994XU CN 201220053994 U CN201220053994 U CN 201220053994U CN 202454700 U CN202454700 U CN 202454700U
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- isolator
- cavity
- waveguide filter
- cover plate
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Abstract
The utility model discloses a waveguide filter with built-in isolators. The waveguide filter comprises a cover plate and a cavity, wherein the cover plate and the cavity are fastened together. The waveguide filter is characterized in that the cover plate and the cavity are both internally provided with a plurality of isolators, each isolator comprises a first isolator magnetic field cavity and a second isolator magnetic field cavity which are symmetrically arranged in the upper surface of the cover plate and the lower surface of the cavity and used for holding permanent magnet, a first metal matching block and a second metal matching block are arranged between the two isolator magnetic field cavities, and ferrite is arranged between the two metal matching blocks. According to the utility model, since the isolators are integrated in the waveguide filter, the isolation degree of the waveguide filer is improved, the performance is excellent, the cover plate and the cavity of the waveguide filter are thickened; and the thickness difference is not larger than 10% of the thickness of the cavity, so the thermal deformation of the waveguide filter is avoided and the reliability and stability of the waveguide filter are improved.
Description
Technical field
The utility model relates to the technical field of filtering of digital microwave and other microwaves, has been specifically related to a kind of waveguide filter that is used for the built-in isolator of digital microwave and other microwaves.
Background technology
Traditional waveguide filter that is used for digital microwave and other microwaves is in order to obtain better isolation; Need external isolator; So just be unfavorable for miniaturization of devices and integrated requirement; And can cause certain mismatch when isolator is connected with waveguide filter, influence the performance of waveguide filter.Simultaneously, the cavity of traditional waveguide filter and cover sheet thickness are thin excessively, cause temperature distortion easily.
The utility model content
Need external isolator in order to solve traditional waveguide filter; Can influence the performance of waveguide filter; Also be unfavorable for miniaturization of devices and integrated problem, the utility model provides a kind of waveguide filter that is integrated into the inner built-in isolator of waveguide filter with isolator, has improved the isolation of waveguide filter; Functional; And cover plate and cavity and the thickness of thickening waveguide filter differs less than 10% of cavity thickness, avoided the hidden danger of device temperature distortion, improved the reliability and stability of device.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of waveguide filter of built-in isolator; Comprise cover plate and cavity; Said cover plate and cavity snap together; It is characterized in that: some isolators are arranged at cover plate and cavity set inside; Said isolator comprise be symmetricly set in the cover plate upper surface with the cavity lower surface in first chamber, isolator magnetic field and the second isolator magnetic field that are used to place permanent magnet, between chamber, two isolator magnetic field, be provided with first metal matching blocks and second metal matching blocks, between two metal matching blocks, place ferrite.
The waveguide filter of aforesaid built-in isolator is characterized in that: said cavity also is provided with the isolator chamber, and said second metal matching blocks is arranged on the inside in said isolator chamber.
The waveguide filter of aforesaid built-in isolator is characterized in that: the thickness difference of said cover plate and cavity be not more than cavity thickness 10%.
The waveguide filter of aforesaid built-in isolator is characterized in that: said cover plate bottom also is provided with pin, and said cavity also is provided with groove, and is complementary with said pin.
The waveguide filter of aforesaid built-in isolator is characterized in that: inside, said isolator chamber also is provided with a plurality of tuning screws hole, and said a plurality of tuning screw pore size distributions are at the periphery of second metal matching blocks.
The beneficial effect of the utility model is: with isolator be integrated into waveguide filter inside, can pass through integrated debugging, improved the isolation of waveguide filter; Make performance better, the thickening waveguide filter cover plate and cavity, and thickness difference be not more than cavity thickness 10%; Prevent that cover plate and cavity are thin excessively, the back distortion of being heated can be played the radiator extension effect; Avoid the hidden danger of device temperature distortion, improved the reliability and stability of device.
Description of drawings
Fig. 1 is the structural representation of the waveguide filter of the built-in isolator of the utility model;
Fig. 2 is the cover plate bottom surface structural representation of the waveguide filter of the built-in isolator of the utility model;
Fig. 3 is the cavity bottom surface structural representation of the waveguide filter of the built-in isolator of the utility model;
Fig. 4 is the front view of the waveguide filter of the built-in isolator of the utility model;
Fig. 5 is the end view of the waveguide filter of the built-in isolator of the utility model.
The Reference numeral implication is following:
1: cover plate; 2: cavity; 3: the tuning screw hole; 4: install and fix the hole; Chamber, 101: the first isolator magnetic field; 102: the first metal matching blocks; 103: pin; Chamber, 201: the second isolator magnetic field; 202: the second metal matching blocks; 203: the isolator chamber; 204: groove.
Embodiment
To combine Figure of description below, the utility model will be described further.Following examples only are used for more clearly explaining the technical scheme of the utility model, and can not limit the protection range of the utility model with this.
Extremely shown in Figure 5 like Fig. 1; A kind of waveguide filter of built-in isolator comprises cover plate 1 and cavity 2, and both sides, cover plate 1 bottom are provided with pin 103; Cavity 2 is being provided with groove 204 with pin 103 opposite position places; Pin 103 can be held in the groove 204, and cover plate 1 and cavity 2 are fastened to together, and the edge of cover plate 1 and cavity 2 also is provided with a plurality of holes 4 that install and fix; In cover plate 1 and cavity 2 both set inside some isolators are arranged; Said isolator comprise be symmetricly set in cover plate 1 upper surface with cavity 2 lower surfaces in the chamber, the first isolator magnetic field 101 and the chamber, the second isolator magnetic field 201 that are used to place permanent magnet, between chamber, two isolator magnetic field, be provided with first metal matching blocks 102 and second metal matching blocks 202, between two metal matching blocks, place ferrite.
Said cavity 2 also is provided with isolator chamber 203, the second metal matching blocks 202 and directly is processed in 203 inside, isolator chamber, and wherein 203 inner second metal matching blocks, 202 peripheries also are provided with absorber in the isolator chamber.
The thickness of said cover plate 1 and cavity 2 is tending towards identical, thickness difference be not more than cavity thickness 10%, guaranteed heat that the waveguide filter of built-in isolator in use produces make cover plate 1 with cavity 2 because thickness is different; Producing different power becomes; Cause perk on one side, thereby influence the performance of waveguide filter, cover plate 1 increases with cavity 2 integral thickness; Increased area of dissipation, made cover plate 1 and cavity 2 be not easy distortion.
203 inside, said isolator chamber also are provided with a plurality of tuning screws hole 3; Said a plurality of tuning screws hole 3 is distributed in the periphery of second metal matching blocks 202, can be in a plurality of tuning screws hole 3 tuning screws be installed, and tuning screw is spaced apart the multiple of wavelength; Tuning screw can make up a new boundary condition around ferritic; Length through regulating tuning screw changes its boundary condition, and the fields inside that changes built-in isolator distributes, and reaches the needed performance of waveguide filter.
The waveguide filter of the built-in isolator of the utility model, the Installation and Debugging process is following:
At first, ferrite is glued between first metal matching blocks 102 and second metal matching blocks 202, the position of ferrite gummed can not guarantee disposable assembling; Make its performance reach optimum; This does not have much relations when the isolator Installation and Debugging, can through directly toward the isolator chamber 203 inner bonded ceramics adjust its performance to best, again permanent magnet is put into chamber, the first isolator magnetic field 101 and chamber, the second isolator magnetic field 201 respectively after; Build chamber, isolator magnetic field lid; Permanent magnet has just fixed, and so just accomplishes the installation of built-in isolator, can good isolation be provided for device.
Then, treat built-in isolator after waveguide filter installs, the tester just can't directly see at a distance from built-in internal structure from device; Just can not regulate with the method that increases pottery; Here just need the installation tuning screw around ferrite, to use and make up a new boundary condition, change its boundary condition, change the fields inside distribution of built-in isolator through the length of regulating tuning screw; Thereby revise waveguide filter to needed performance; If customer requirement output port standing-wave ratio is higher here, can also be in the isolator chamber 203 inner second metal matching blocks 202 around increase by four tuning screws, each tuning screw is spaced apart the multiple of wavelength; This mode can improve former standing wave, the good demand that satisfies the client.
In sum, the waveguide filter of the built-in isolator of the utility model is integrated into waveguide filter inside with isolator; And cover plate and the cavity of thickening waveguide filter and the thickness difference thickness that is not more than cavity 10%, thereby increased area of dissipation, avoided the hidden danger of device temperature distortion; Reliability, stability and the isolation of device have been improved; Make performance better, volume is little, in light weight, simple to operate, easy for installation, good reliability, has improved production efficiency greatly.
Above-mentioned permanent magnet, ferrite and absorber are the vitals of isolator, belong to known technology, and mark does not come out in the accompanying drawings.
More than show and described basic principle, principal character and the advantage of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (5)
1. the waveguide filter of built-in isolator; Comprise cover plate (1) and cavity (2); Said cover plate (1) snaps together with cavity (2); It is characterized in that: some isolators are arranged at cover plate (1) and both set inside of cavity (2); Said isolator comprises and being symmetricly set in cover plate (1) upper surface and the interior chamber, the first isolator magnetic field (101) and the chamber, the second isolator magnetic field (201) that are used to place permanent magnet of cavity (2) lower surface, between chamber, two isolator magnetic field, is provided with first metal matching blocks (102) and second metal matching blocks (202), between two metal matching blocks, places ferrite.
2. the waveguide filter of built-in isolator according to claim 1, it is characterized in that: said cavity (2) also is provided with isolator chamber (203), and said second metal matching blocks (202) is arranged on the inside in said isolator chamber (203).
3. the waveguide filter of built-in isolator according to claim 1 and 2 is characterized in that: the thickness difference of said cover plate (1) and cavity (2) be not more than cavity (2) thickness 10%.
4. the waveguide filter of built-in isolator according to claim 3, it is characterized in that: said cover plate (1) bottom also is provided with pin (103), and said cavity (2) also is provided with groove (204), and is complementary with said pin (103).
5. the waveguide filter of built-in isolator according to claim 4; It is characterized in that: inside, said isolator chamber (203) also is provided with a plurality of tuning screws hole (3), and said a plurality of tuning screws holes (3) are distributed in the periphery of second metal matching blocks (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220053994XU CN202454700U (en) | 2012-02-20 | 2012-02-20 | Waveguide filter with built-in isolators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220053994XU CN202454700U (en) | 2012-02-20 | 2012-02-20 | Waveguide filter with built-in isolators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202454700U true CN202454700U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220053994XU Expired - Fee Related CN202454700U (en) | 2012-02-20 | 2012-02-20 | Waveguide filter with built-in isolators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202454700U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569958A (en) * | 2012-02-20 | 2012-07-11 | 南京灏众通信技术有限公司 | Waveguide filter with built-in isolators |
| CN106654489A (en) * | 2016-11-15 | 2017-05-10 | 中国电子科技集团公司第四十研究所 | Radio-frequency coaxial matching load |
| CN111355006A (en) * | 2018-12-21 | 2020-06-30 | 罗森伯格技术（昆山）有限公司 | Waveguide filter |
-
2012
- 2012-02-20 CN CN201220053994XU patent/CN202454700U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569958A (en) * | 2012-02-20 | 2012-07-11 | 南京灏众通信技术有限公司 | Waveguide filter with built-in isolators |
| CN102569958B (en) * | 2012-02-20 | 2014-10-15 | 南京天璇电子技术有限公司 | Waveguide filter with built-in isolators |
| CN106654489A (en) * | 2016-11-15 | 2017-05-10 | 中国电子科技集团公司第四十研究所 | Radio-frequency coaxial matching load |
| CN106654489B (en) * | 2016-11-15 | 2019-07-09 | 中国电子科技集团公司第四十一研究所 | A kind of radio frequency coaxial matching load |
| CN111355006A (en) * | 2018-12-21 | 2020-06-30 | 罗森伯格技术（昆山）有限公司 | Waveguide filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20160220 |