CN102468525A - Realizing method of high-isolation degree design of microwave multi-path rotary hinge channels - Google Patents
Realizing method of high-isolation degree design of microwave multi-path rotary hinge channels Download PDFInfo
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- CN102468525A CN102468525A CN2011102452758A CN201110245275A CN102468525A CN 102468525 A CN102468525 A CN 102468525A CN 2011102452758 A CN2011102452758 A CN 2011102452758A CN 201110245275 A CN201110245275 A CN 201110245275A CN 102468525 A CN102468525 A CN 102468525A
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Abstract
The invention relates to a realizing method of a high-isolation degree design of microwave multi-path rotary hinge channels. According to the invention, the method for absorbing leaked microwave energy is used for solving the problem of mutual interference among channels in a microwave multi-path high-power signal rotary transmission hinge caused by signal leakage, so as to effectively prevent the mutual interference among the channels which is caused by the signal leakage, and avoiding problems of high manufacture difficulty, easy wearing in use, low efficiency and the like, which are caused by using a method for reducing a channel rotary gap for the purpose of reducing microwave leakage, wherein the method of absorbing the leaked microwave energy comprises the following steps of: preparing a hard microwave absorption material mixed by carbonyl iron powder and epoxy resin; manufacturing microwave absorption rings; and configuring the microwave absorption rings in the rotary gaps of the microwave signal transmission channels. The invention can be directly used for modern multifunctional radars and multi-frequency band products for communicating, monitoring and the like, so that high-quality multi-path microwave signal transmission between a rotary antenna and fixed transmitting-receiving equipment is realized. The method provided by the invention has the characteristics of high isolation degree among the channels in the rotary hinge, low manufacturing cost, easiness of realization, high reliability, long service life and the like.
Description
Technical field
The present invention relates to a kind of high isolation design of interchannel and implementation method that is used for the multichannel microwave signal transmission sound conversion rotary gemel of multifunction radar and products such as multiband microwave communication, observing and controlling; Rigid microwave absorbing material through adopting special preparation is made the microwave absorbing ring; Absorb and leak the microwave signal energy; To improve the interchannel isolation of multichannel microwave signal transmission between rotable antenna and static transceiver, belong to the antenna microwave technical field.
Background technology
Along with hyundai electronics information technologies such as microwave radar, communication, measurement, environmental monitoring militarily with the extensive use of civilian commercial field, multiband, multichannel microwave signal transmission system have become important composition indispensable in the associated equipment.Electronic equipments such as radar generally adopt antenna rotation sweep mode to realize the information in the comprehensive spatial domain of 360 degree is obtained when work, between antenna and fixed transceiver equipment, must adopt the multichannel rotary gemel to carry out the transmission of multiband microwave signal for this reason.
Multichannel microwave transmission rotary gemel inside commonly used is with the circular coaxial rotating parts of outer rectangular waveguide transitions, and realizes that through choke groove the mode that electrically contacts has between the sound parts of rotary gap, carries out the transmission of multichannel microwave signal.When transmitting simultaneously in the different passages of microwave signal at the rotary gemel parts of multi-path large power; Rotary gap can produce microwave signal and reveal; Cause each interchannel signal to produce the phase mutual interference, cause signal distortion and loss, thereby reduced the technical performance of equipment.In order to reduce to disturb, must improve each interchannel Signal Spacing degree of multichannel microwave rotary gemel, for this reason, adopt usually to reduce gap between the inner sound parts of hinge, reveal to reduce microwave.But, excessively reduce the rotary gemel internal clearance, will cause its processing with the assembly precision requirement high and be difficult to the realization.In addition; Factors such as the load of equipment under regular service conditions is inhomogeneous, vibration; The capital causes rotary gemel to produce slight off-centre in the course of the work, and too small rotary gap also can aggravate rotation wearing and tearing, distortion and heating at this moment, makes rotary gemel shortening in useful life or produce to damage.
Summary of the invention
The present invention is in order to solve the difficult problem that conventional multichannel microwave transmission rotary gemel is easy to generate the mutual interference of interchannel signal phase at work; Through assemble extraordinary microwave absorbing ring at the running clearance place; Can be when ensureing microwave signal rotation transmission channel reliably working; Effectively suppress the mutual interference of interchannel signal phase, improve the isolation of signal between each road transmission channel.Can overcome simultaneously is to guarantee the needed interchannel isolation of microwave signal rotation transmission, takes excessively to reduce running clearance and the wearing and tearing aggravation, the life-span that cause reduce and the excessive problem of process and assemble difficulty.
The technical solution that the present invention is adopted for its technical problem of solution is: will be by the microwave absorbing ring that absorbing material customized of special process configuration; Be installed on rotating parts outward flange in the microwave leakage signal transmission path; And under the prerequisite that does not produce spin friction; Cover its rotary gap; When this passage microwave leakage signal is passed through rotary gap,, reach the elimination microwave signal and rotate the phase mutual interference between transmission channel, the purpose of raising interchannel Signal Spacing degree by the microwave signal energy that the microwave absorbing loop resistance breaks and absorption is revealed; And, be convenient to Project Realization because therefore disconnected the and absorption by the microwave absorbing loop resistance of microwave leakage signal can increase rotary gap, thereby reduce rotary gap technical requirement on design and difficulty of processing.
The present invention compared with prior art; Can be on the basis that does not change original multichannel microwave transmission rotary gemel profile and installation dimension; Equipped microwave absorbing ring in the transmission path of leakage microwave signal in multichannel microwave transmission rotary gemel; Be used for fully absorbing and leak microwave signal, improve the interchannel isolation.The multichannel microwave transmission rotary gemel of the method development that the present invention provides has characteristics such as the multiple signals isolation is high, cost is low, Project Realization is easy, reliability is high, the life-span is long.
Description of drawings
Figure of description is the structural representation behind the equipped microwave absorbing ring of typical multichannel microwave transmission rotary gemel.
Wherein: 1, microwave absorbing ring, 2, newly-increased bearing, 3, the microwave leakage passage, 4, the structure after improving, 5, rotating part, 6, the microwave absorbing ring, 7, running clearance.
Embodiment
1, adopt special material technology to make special-purpose rigid microwave absorbing material
Carbonyl iron dust and epoxy resin are fully mixed thoroughly according to 20: 3 ratio, processed the microwave absorbing raw material; Transmit the outward flange shape and size of rotating parts in the rotary gemel again according to multichannel microwave, in the mould of reserving rotary gap size and an amount of allowance, press forming; In baking oven with 80 ± 3 ℃ temperature baking 5 ± 0.5 hours, with the stove natural cooling required rigid microwave absorbing material.
2, shape the microwave absorbing ring
Need be equipped with the requirement that the axis radius of rotating parts strengthens 0.5mm, processing microwave absorbing ring endoporus on lathe by the microwave absorbing ring; Other processes the configuration processing with the measure-alike preparation microwave absorbing ring of this endoporus and uses axle; Microwave absorbing material is enclosed within on the axle, fixes with glue; Processing microwave absorbing ring external diameter on lathe; With separated from solvent microwave absorbing ring and axle.
3, at rotary gap the microwave absorbing ring is installed
The microwave absorbing ring is positioned over the rotary gap place (being between rotating part and the static part) (typical application is seen accompanying drawing) of rotating parts in the hinge, fixes, be used to absorb the microwave signal of leaking with glue.
Claims (3)
1. high isolation design implementation method of microwave multichannel rotary gemel passage is characterized by the rigid microwave absorbing ring of adding in the gap of each passage rotating part and static part in microwave multiple signals rotation transmission hinge, is used to absorb microwave leakage.
2. the special material making of rigid microwave absorbing ring according to claim 1 and moulding, technological method for processing.
3. the making of rigid microwave absorbing ring according to claim 1 and moulding, processing technology and equipped method thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102452758A CN102468525A (en) | 2011-08-25 | 2011-08-25 | Realizing method of high-isolation degree design of microwave multi-path rotary hinge channels |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102452758A CN102468525A (en) | 2011-08-25 | 2011-08-25 | Realizing method of high-isolation degree design of microwave multi-path rotary hinge channels |
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| CN102468525A true CN102468525A (en) | 2012-05-23 |
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| CN2011102452758A Pending CN102468525A (en) | 2011-08-25 | 2011-08-25 | Realizing method of high-isolation degree design of microwave multi-path rotary hinge channels |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064871A (en) * | 2014-07-07 | 2014-09-24 | 中国船舶重工集团公司第七二四研究所 | Obtaining method for four-channel high-power broadband rotary hinge |
| CN104409798A (en) * | 2014-11-27 | 2015-03-11 | 中国船舶重工集团公司第七二四研究所 | Realizing method of stacked coaxial rotating hinges for broadband |
| CN111224199A (en) * | 2020-01-08 | 2020-06-02 | 中国船舶重工集团公司第七二四研究所 | Ka and Ku wave band double-channel rotary joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0869900A (en) * | 1994-08-30 | 1996-03-12 | Toshiba Corp | Tuner device for high-frequency acceleration cavity |
| CN1478827A (en) * | 2002-08-30 | 2004-03-03 | 付增荣 | New type microwave adsorption material |
| CN201298582Y (en) * | 2008-12-03 | 2009-08-26 | 中国航天科技集团公司第五研究院第五〇四研究所 | Multichannel microwave rotary joint |
| CN201532999U (en) * | 2009-10-14 | 2010-07-21 | 中国电子科技集团公司第三十六研究所 | Straight type radio frequency coaxial rotary joint |
-
2011
- 2011-08-25 CN CN2011102452758A patent/CN102468525A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0869900A (en) * | 1994-08-30 | 1996-03-12 | Toshiba Corp | Tuner device for high-frequency acceleration cavity |
| CN1478827A (en) * | 2002-08-30 | 2004-03-03 | 付增荣 | New type microwave adsorption material |
| CN201298582Y (en) * | 2008-12-03 | 2009-08-26 | 中国航天科技集团公司第五研究院第五〇四研究所 | Multichannel microwave rotary joint |
| CN201532999U (en) * | 2009-10-14 | 2010-07-21 | 中国电子科技集团公司第三十六研究所 | Straight type radio frequency coaxial rotary joint |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064871A (en) * | 2014-07-07 | 2014-09-24 | 中国船舶重工集团公司第七二四研究所 | Obtaining method for four-channel high-power broadband rotary hinge |
| CN104409798A (en) * | 2014-11-27 | 2015-03-11 | 中国船舶重工集团公司第七二四研究所 | Realizing method of stacked coaxial rotating hinges for broadband |
| CN104409798B (en) * | 2014-11-27 | 2017-03-29 | 中国船舶重工集团公司第七二四研究所 | The implementation method of coaxial rotating hinge can be piled up in a kind of broadband |
| CN111224199A (en) * | 2020-01-08 | 2020-06-02 | 中国船舶重工集团公司第七二四研究所 | Ka and Ku wave band double-channel rotary joint |
| CN111224199B (en) * | 2020-01-08 | 2021-07-06 | 中国船舶重工集团公司第七二四研究所 | Ka and Ku wave band double-channel rotary joint |
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Application publication date: 20120523 |