CN101894996A - Waveguide isolator adopting novel split-type structural cavity body - Google Patents
Waveguide isolator adopting novel split-type structural cavity body Download PDFInfo
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- CN101894996A CN101894996A CN2010102060969A CN201010206096A CN101894996A CN 101894996 A CN101894996 A CN 101894996A CN 2010102060969 A CN2010102060969 A CN 2010102060969A CN 201010206096 A CN201010206096 A CN 201010206096A CN 101894996 A CN101894996 A CN 101894996A
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Abstract
The invention discloses a waveguide isolator adopting a novel split-type structural cavity body, which is in a split-type structure and comprises an upper cavity body and a lower cavity body, wherein the upper cavity body and the lower cavity body are positioned and fixed through a clamping slot and a groove per se, metal matching blocks are also respectively arranged on the opposite surfaces of the upper cavity body and the lower cavity body, a ferrite is positioned between the upper metal matching block and the lower metal matching block, and a polyfluortetraethylene medium is also arranged between the ferrite and the metal matching blocks; an absorber is arranged in the groove at one side of the lower cavity body and bonded with the sharp corners of the metal matching blocks, a cylindrical hole is also respectively arranged on the upper cavity body and the lower cavity body, a permanent magnet is arranged in the cylindrical hole, and the permanent magnet is packaged in the cylindrical hole through a cover plate. Through the split-type structure for dividing an isolating cavity into the upper cavity body and the lower cavity body, when the waveguide isolator is installed, the correct position of installation can be ensured, errors are reduced, parts in the cavity bodies are also more convenient to install, and the installation efficiency, the installation quality and the stable performance of products are improved.
Description
Technical field
The present invention relates to a kind of isolator, be mainly used in the microwave system, in the especially aerospace electronic equipment.
Background technology
The separate cavities of traditional isolator is whole chamber, and inside cavity poor flatness, size are difficult for guaranteeing, very inconvenience is installed, and efficient is low, and error is big, causes the inconsistent situation of installing easily.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide the waveguide isolator of the employing novel split-type structural cavity body of a kind of installation effectiveness height, precision height, high conformity.
The present invention is achieved through the following technical solutions:
A kind of waveguide isolator that adopts novel split-type structural cavity body, comprise separate cavities, it is characterized in that, described separate cavities is a split-type structural, comprise upper cavity and lower chamber, upper cavity and lower chamber position fixingly by self draw-in groove and groove, also are respectively arranged with metal matching blocks on the opposite face of upper cavity and lower chamber.Ferrite is up and down between two metal matching blocks, and also is provided with PTFE medium between ferrite and the metal matching blocks; Absorber is arranged in the groove of lower chamber one side, fits with the wedge angle of metal matching blocks; Also be provided with cylindrical hole on upper cavity and lower chamber, be provided with permanent magnet in the cylindrical hole, permanent magnet is encapsulated in the cylindrical hole by cover plate.
Also be respectively arranged with the match with ceramic cylinder in a side of two metal matching blocks up and down, each 2 up and down, totally 4.
Metal matching blocks and ferrite all are triangular form.
One end also is provided with square draw-in groove in the bottom of upper cavity, and the groove of square draw-in groove and lower chamber one end closely cooperates, and can adjust isolation by the front and back position of absorber groove adjustment absorber.
The circular groove that is provided with circular draw-in groove and lower chamber one end at the top of upper cavity one end closely cooperates.
The invention has the beneficial effects as follows: the present invention is by being divided into separate cavities the split-type structural of upper cavity and lower chamber, make the present invention when mounted, can guarantee the tram of installing, reduce error, the parts of installing simultaneously in the cavity are also more convenient, improved the stable performance of installation effectiveness, installation quality and product.
Description of drawings
Fig. 1 is the split structural representation one of one embodiment of the invention;
Fig. 2 is the split structural representation two of one embodiment of the invention;
Fig. 3 is the package assembly schematic diagram of one embodiment of the invention.
Main Reference numeral implication is among the figure:
1, upper cavity 2, lower chamber 3, ferrite 4, absorber
5, permanent magnet 6, cover plate 7, metal mate fast 8, chamber, magnetic field
9, square groove 10, screw 11, absorber groove 12, PTFE medium
13, match with ceramic cylinder 14, screw hole 15, square draw-in groove
16, circular groove 17, circular draw-in groove
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail:
Fig. 1 is the split structural representation one of one embodiment of the invention; Fig. 2 is the split structural representation two of one embodiment of the invention; Fig. 3 is the package assembly schematic diagram of one embodiment of the invention.
As shown in Figures 1 to 4: the waveguide isolator that adopts novel split-type structural cavity body, it is a split-type structural, comprise upper cavity 1 and lower chamber 2, upper cavity 1 and lower chamber 2 by square groove 9 and square draw-in groove 15 and circular groove 16 match with circular draw-in groove 17 position fixing, on the opposite face of upper cavity 1 and lower chamber 2, also be respectively arranged with metal matching blocks 7, ferrite 3 is up and down between two metal matching blocks 7, metal matching blocks 7 and ferrite 3 all are triangular form, also be provided with PTFE medium 12 between ferrite 3 and the metal matching blocks 7, absorber 4 is arranged in the groove 11 of lower chamber 2 one sides, fit with the wedge angle of metal matching blocks 7, sidewall at the lower chamber 2 on absorber 4 tops also is provided with a square groove 9, be used to adjust the position, the left and right sides of absorber 4, make it to adjust isolation, on upper cavity 1 and lower chamber 2, also be provided with chamber, magnetic field 8, be provided with permanent magnet 5 in the chamber, magnetic field 8, permanent magnet 5 is encapsulated in the chamber, magnetic field 8 by cover plate 6, also be respectively arranged with coupling dielectric cylinder 13 in a side of two metal matching blocks 7 up and down, and match with ceramic cylinder 13 is each 2 up and down altogether, totally 4.
In addition, be installed in the screw hole 14, make upper cavity 1 and lower chamber 2 install fastening by screw 10.
Operation principle of the present invention is: when microwave from the end (input port) of isolator during to the other end (output port) forward-propagating, it is more concentrated that (being horizontal line) upward along the line of ferrite 3, metal matching blocks 7 located electric field, up to the 18.9KV/m field intensity, the field intensity concentration zones is transferred to port one along last slipping over along the line, form the forward transmitted of port one-port 2, on the contrary, be the reverse transfer situation, area of energy concentration only tilts to slip over along 60 degree, pass to absorber 4 and absorb, form the reverse transfer of port 2-port one.
The present invention is a miniaturized device, and volume is little, in light weight, simple to operate, easy for installation, good reliability, has improved production efficiency greatly, in processing, more can guarantee precision, better than similar non-these constructed products performance index, its stability thermocycling, the result is:
Table 1: conventional waveguide flange-type isolator and performance comparison sheet of the present invention under the normal temperature condition:
| 25±5℃ | Isolate | Insertion Loss | Standing wave (port one) | Standing wave (port 2) |
| New technology | 26 | 0.24 | 22 | 22 |
| Old technology | 23 | 0.35 | 20 | 20 |
Table 2: conventional waveguide flange-type isolator and performance comparison sheet of the present invention under the hot conditions:
| +85℃ | Isolate | Insertion Loss | Standing wave (port one) | Standing wave (port 2) |
| New technology | 25 | 0.26 | 21 | 21 |
| Old technology | 21 | 0.37 | 19 | 19 |
Table 3: conventional waveguide flange-type isolator and performance comparison sheet of the present invention under the cryogenic conditions:
| -45℃ | Isolate | Insertion Loss | Standing wave (1 port) | Standing wave (2 port) |
| New technology | 23 | 0.25 | 21 | 21 |
| Old technology | 22 | 0.36 | 19 | 19 |
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.
Claims (8)
1. waveguide isolator that adopts novel split-type structural cavity body, comprise separate cavities, it is characterized in that, described separate cavities is a split-type structural, comprise upper cavity and lower chamber, upper cavity and lower chamber position fixingly by self draw-in groove and groove, also are respectively arranged with metal matching blocks on the opposite face of upper cavity and lower chamber.Ferrite is up and down between two metal matching blocks, and also is provided with PTFE medium between ferrite and the metal matching blocks; Absorber is arranged in the groove of lower chamber one side, fits with the wedge angle of metal matching blocks; Also be provided with cylindrical hole on upper cavity and lower chamber, be provided with permanent magnet in the cylindrical hole, permanent magnet is encapsulated in the cylindrical hole by cover plate.
2. the waveguide isolator of employing novel split-type structural cavity body according to claim 1 is characterized in that, also is respectively arranged with the match with ceramic cylinder in a side of two metal matching blocks up and down.
3. the waveguide isolator of employing novel split-type structural cavity body according to claim 2 is characterized in that, the match with ceramic cylinder is 4 altogether, respectively is 2 up and down.
4. the waveguide isolator of employing novel split-type structural cavity body according to claim 1 is characterized in that, metal matching blocks and ferrite all are triangle.
5. the waveguide isolator of employing novel split-type structural cavity body according to claim 1 is characterized in that, lower chamber one end on the absorber top also is provided with a square groove.
6. the waveguide isolator of employing novel split-type structural cavity body according to claim 1 is characterized in that, also is provided with square draw-in groove at upper cavity one end, and square draw-in groove matches with the square groove of lower chamber one end.
7. the waveguide isolator of employing novel split-type structural cavity body according to claim 1 is characterized in that, is provided with circular groove at the other end of lower chamber.
8. the waveguide isolator of employing novel split-type structural cavity body according to claim 1 is characterized in that, is provided with circular draw-in groove at the other end of upper cavity, matches with the circular draw-in groove of upper cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102060969A CN101894996A (en) | 2010-06-22 | 2010-06-22 | Waveguide isolator adopting novel split-type structural cavity body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102060969A CN101894996A (en) | 2010-06-22 | 2010-06-22 | Waveguide isolator adopting novel split-type structural cavity body |
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| CN101894996A true CN101894996A (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102060969A Pending CN101894996A (en) | 2010-06-22 | 2010-06-22 | Waveguide isolator adopting novel split-type structural cavity body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420346A (en) * | 2011-12-28 | 2012-04-18 | 南京广顺电子技术研究所 | Split waveguide isolator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145672A (en) * | 1976-11-12 | 1979-03-20 | Trw Inc. | Microwave ferrite circulator having dielectric tube for housing circulator elements |
| JPH06291516A (en) * | 1993-03-31 | 1994-10-18 | Nec Corp | Coaxial circulator |
| CN1874055A (en) * | 2001-10-10 | 2006-12-06 | 马科尼通讯股份有限公司 | Circulator |
| CN201336351Y (en) * | 2009-01-08 | 2009-10-28 | 世达普(苏州)通信设备有限公司 | Novel microwave circulator with packaging structure |
| CN201708235U (en) * | 2010-06-22 | 2011-01-12 | 南京广顺电子技术研究所 | Waveguide isolator adopting novel cavity with split type structure |
-
2010
- 2010-06-22 CN CN2010102060969A patent/CN101894996A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145672A (en) * | 1976-11-12 | 1979-03-20 | Trw Inc. | Microwave ferrite circulator having dielectric tube for housing circulator elements |
| JPH06291516A (en) * | 1993-03-31 | 1994-10-18 | Nec Corp | Coaxial circulator |
| CN1874055A (en) * | 2001-10-10 | 2006-12-06 | 马科尼通讯股份有限公司 | Circulator |
| CN201336351Y (en) * | 2009-01-08 | 2009-10-28 | 世达普(苏州)通信设备有限公司 | Novel microwave circulator with packaging structure |
| CN201708235U (en) * | 2010-06-22 | 2011-01-12 | 南京广顺电子技术研究所 | Waveguide isolator adopting novel cavity with split type structure |
Non-Patent Citations (2)
| Title |
|---|
| 张远等: "6毫米波导隔离器", 《中国西部磁性材料论坛论文集》 * |
| 蒋微波等: "微波铁氧体器件在雷达和电子系统中的应用、研究与发展(上)", 《现代雷达》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420346A (en) * | 2011-12-28 | 2012-04-18 | 南京广顺电子技术研究所 | Split waveguide isolator |
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Application publication date: 20101124 |