CN101465454A - Radio frequency miniature matrix switch - Google Patents
Radio frequency miniature matrix switch Download PDFInfo
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- CN101465454A CN101465454A CNA2009100581403A CN200910058140A CN101465454A CN 101465454 A CN101465454 A CN 101465454A CN A2009100581403 A CNA2009100581403 A CN A2009100581403A CN 200910058140 A CN200910058140 A CN 200910058140A CN 101465454 A CN101465454 A CN 101465454A
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- throw switch
- switch
- hilted broadsword
- matrix
- throw
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Abstract
The invention discloses a radio frequency miniaturized matrix switch, comprising a metal cavity, a drive control circuit, and a modularized single-pole multi-throw switch arranged in the metal cavity; the matrix switch is characterized in that: the modularized single-pole multi-throw switch comprises M single-pole N-throw switches and N single-pole M-throw switches which are vertically cross-connected; the single-pole N-throw switch is provided with an output port and M connecting ports; the single-pole M-throw switch is provided with an input port and N connecting ports; each single-pole N-throw switch and each single-pole M-throw switch are respectively provided with radio frequency connecting routes; the drive control circuit is connected with each single-pole M-throw switch and each single-pole M-throw switch for realizing to switch over. The matrix switch can overcome the disadvantages of the prior art, and has the characteristics of wide band, low loss, high isolation and high consistency.
Description
Technical field
The present invention relates to the radio-frequency (RF) switch technical field, be specifically related to a kind of radio frequency miniature matrix switch that adopts the square crossing structure.
Background technology
Along with the develop rapidly of electronic technology, various electronic system volumes are more and more littler, and quality is more and more lighter, and function is more and more.People have been not content with wireless system with a plurality of difference in functionalitys and have been installed together and realize multi-functional method, but tend to allow more shared performances of a plurality of systems or the same parts of structure, and switch matrix just can satisfy such requirement.Switch matrix is placed on the wireless receiving and dispatching front end, can allows a plurality of systems antenna of shared a plurality of different frequency ranges simultaneously, so the function and the working band of expanding system greatly.This variation of system is not only to have expanded function, also makes system's miniaturization and broadband more.
The radio-frequency (RF) switch matrix is as the parts in the electronic system wireless receiving and dispatching front end, its typical usage as shown in Figure 1, multiple antenna 2 and a plurality of wireless transceiving component 3 link together through switch matrix, by the switching controls of Drive and Control Circuit plate 1, make wireless transceiving component 3 can share antenna 2.
Chinese patent CN1716682 has mentioned a kind of switch matrix, though can carry out broadband work, cable version is adopted in the connection between the single pole multiple throw; Though do not propose the concrete parameter that can arrive, according to the switch matrix measured data of this method manufacturing be: operating frequency 2～2000MHz, Insertion Loss 3.0dB, isolation 60dB, phase equalization 15 degree, volume 500mm * 150mm * 50mm.
As receiving system foremost, the Insertion Loss of switch matrix will directly have influence on the noise factor of receiver, so switch matrix will born the requirement of broadband, low Insertion Loss and miniaturization simultaneously.
Summary of the invention
Problem to be solved by this invention is: how a kind of radio frequency miniature matrix switch is provided, and this matrix switch can overcome existing shortcoming in the prior art, has bandwidth, low-loss, high-isolation and high conforming characteristics.
Technical problem proposed by the invention is to solve like this: a kind of radio frequency miniature matrix switch is provided, comprise wire chamber, Drive and Control Circuit, be arranged on the modular single pole multiple throw in the wire chamber, it is characterized in that, described modular single pole multiple throw comprises M hilted broadsword N throw switch and N hilted broadsword M throw switch, these two groups of single pole multiple throw square crossings connect, described hilted broadsword N throw switch has an output port and M connectivity port, described hilted broadsword M throw switch has an input port and N connectivity port, a hilted broadsword N throw switch and each hilted broadsword M throw switch all have a radio frequency access path, a hilted broadsword M throw switch and each hilted broadsword N throw switch all have a radio frequency access path, and described Drive and Control Circuit connects each hilted broadsword N throw switch and hilted broadsword M throw switch is realized switching.
According to radio frequency miniature matrix switch provided by the present invention, it is characterized in that, annexation between M hilted broadsword N throw switch and N the hilted broadsword M throw switch is the matrix type annexation, M hilted broadsword N throw switch transverse layers stacks and connectivity port row in one plane formed first matrix with M * N connectivity port, N hilted broadsword M throw switch is vertically flat folded as a whole and connectivity port row in one plane formed second matrix with N * M connectivity port, wherein M is the vertical array number, N is the transverse row columns, and all be the positive integer more than or equal to two, to be installed into the adapted seat that the has the matrix hole second matrix interconnection that neutralizes be one to first matrix by plugging the cloudy head connector of radio frequency.
The present invention adopts the design of modularization single pole multiple throw and uses the square crossing structure, be reduced to the radio-frequency path that is input to output the shortest, customization can plug the link of radio frequency connector as square crossing, remove cable and connected Insertion Loss and the inconsistency of bringing, this layout makes switch matrix can reduce size and loss, solve the restriction that existing switch matrix volume is big, Insertion Loss is big, consistency is bad, improved operating frequency.The present invention adopts all solid stateization design, has increased substantially the reliability of machine system, can realize the quick switching to high-power RF.
Description of drawings
Fig. 1 is a principle schematic of using switch matrix in the prior art in the radio system;
Fig. 2 is the schematic diagram of an embodiment of radio frequency miniature matrix switch among the present invention;
Fig. 3 is the assembling schematic diagram of an embodiment of radio frequency miniature matrix switch among the present invention.
Wherein, 1, the Drive and Control Circuit plate, 2, antenna, 3, transmitting-receiving subassembly, 4, single pole multiple throw, 5, single pole multiple throw, 6, input port, 7, output port, 8, can plug the cloudy head connector of radio frequency, 9, adapter, 10, connectivity port, 11, connectivity port, 12, Drive and Control Circuit, 13, wire chamber.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described:
The radio-frequency (RF) switch principle as shown in Figure 1, its typical usage as shown in Figure 1, multiple antenna 2 and a plurality of wireless transceiving component 3 link together through switch matrix, by the switching controls of Drive and Control Circuit plate 1, make wireless transceiving component 3 can share antenna 2.
Radio frequency miniature matrix switch structure of the present invention is as follows: comprise wire chamber 13, Drive and Control Circuit 12, be arranged on the modular single pole multiple throw in the wire chamber, wherein, modular single pole multiple throw comprises M hilted broadsword N throw switch and N hilted broadsword M throw switch, these two groups of single pole multiple throw square crossings connect, hilted broadsword N throw switch has an output port and M connectivity port, hilted broadsword M throw switch has an input port and N connectivity port, a hilted broadsword N throw switch and each hilted broadsword M throw switch all have a radio frequency access path, a hilted broadsword M throw switch and each hilted broadsword N throw switch all have a radio frequency access path, and Drive and Control Circuit connects each hilted broadsword N throw switch and hilted broadsword M throw switch is realized switching.
As preferred embodiment, can be with its matrix type as standard, M hilted broadsword N throw switch 4 transverse layers stack and connectivity port 11 rows are in one plane formed first matrix with M * N output port, N hilted broadsword M throw switch 5 vertically put down folded as a whole and connectivity port 10 rows are in one plane formed one has N * M second matrix of importing, wherein M is the vertical array number, N is the transverse row columns, and all be the positive integer more than or equal to two, to be installed into the adapted seat 9 neutralizations second matrix interconnection that has the matrix hole be one to first matrix by plugging the cloudy head connector 8 of radio frequency.
Removed the cable in the existing switch matrix among the present invention, the substitute is pluggable radio frequency (RF) coaxial connector, the radio-frequency path that will be used to connect has been reduced to the shortest; Owing to use the square crossing mounting means of single pole multiple throw, the routing path of single pole multiple throw is further shortened, these two technical schemes make the more existing cable mounting means of high-frequency loss reduce about 0.5dB, have reduced Insertion Loss thus, have widened working band.Simultaneously, the good radio frequency connector of consistency has solved the cable uppity problem of phase place that is uneven in length, and adds modular single pole multiple throw manufacturing, for phase equalization provides assurance.Make that under maximum operating frequency phase equalization has been brought up to 6 degree by 15 degree.
On the other hand, the isolation that the flexible cable itself that is used to connect in the prior art provides has only about 60dB, after employing has the radio frequency connector of sealing ground plane, can eliminate the influence of cable pair isolation; And adopt after the square crossing structure that single pole multiple throw stacks, make between the radio-frequency channel physical isolation fully.Can make isolation bring up to 80dB thus by existing 60dB.
The inside that technical scheme of the present invention has shortened switch matrix connects, and has made full use of the inner space of cavity body structure, has reduced the volume of switch matrix.Present 6 * 6 switch matrix have only 100mm * 70mm * 40mm in the situation lower volume that satisfies electrical performance indexes.
Be specific embodiments of the invention below:
Now illustrate its execution mode with 6 * 6 switch matrix.As shown in Figure 2, at first 6 SP6T switch level are placed and are stacked one group of SP6T switch 4 of composition, again 6 SP6T switches are vertically placed and are stacked another group of composition SP6T switch 5, secondly can plug the cloudy head connector 8 of radio frequency with 36 is installed in the adapted seat 9 that has the matrix hole, require to install steadily, the termination alignment, translation SP6T switch 4 and SP6T switch 5 then, the connectivity port 11 of the connectivity port 10 of SP6T switch 4 and SP6T switch 5 is coupled together by the cloudy head connector 8 of the plugged radio frequency in the adapted seat 9 that has the matrix hole, at last, according to assembling metal shown in Figure 3 chamber 13 and Drive and Control Circuit 12.
Above-mentioned 6 * 6 switch matrix that obtain have following features:
1. frequency range: 2～2000MHz,
2. insertion loss :≤2.5dB,
3. isolation: 〉=80dB,
4. phase equalization :≤6 °.
Claims (2)
1, a kind of radio frequency miniature matrix switch, comprise wire chamber, Drive and Control Circuit, be arranged on the modular single pole multiple throw in the wire chamber, it is characterized in that, described modular single pole multiple throw comprises M hilted broadsword N throw switch and N hilted broadsword M throw switch, these two groups of single pole multiple throw square crossings connect, described hilted broadsword N throw switch has an output port and M connectivity port, described hilted broadsword M throw switch has an input port and N connectivity port, a hilted broadsword N throw switch and each hilted broadsword M throw switch all have a radio frequency access path, a hilted broadsword M throw switch and each hilted broadsword N throw switch all have a radio frequency access path, and described Drive and Control Circuit connects each hilted broadsword N throw switch and hilted broadsword M throw switch is realized switching.
2, radio frequency miniature matrix switch according to claim 1, it is characterized in that, annexation between M hilted broadsword N throw switch and N the hilted broadsword M throw switch is the matrix type annexation, M hilted broadsword N throw switch transverse layers stacks and connectivity port row in one plane formed first matrix with M * N connectivity port, N hilted broadsword M throw switch is vertically flat folded as a whole and connectivity port row in one plane formed second matrix with N * M connectivity port, wherein M is the vertical array number, N is the transverse row columns, and all be the positive integer more than or equal to two, to be installed into the adapted seat that the has the matrix hole second matrix interconnection that neutralizes be one to first matrix by plugging the cloudy head connector of radio frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100581403A CN101465454A (en) | 2009-01-15 | 2009-01-15 | Radio frequency miniature matrix switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100581403A CN101465454A (en) | 2009-01-15 | 2009-01-15 | Radio frequency miniature matrix switch |
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| Publication Number | Publication Date |
|---|---|
| CN101465454A true CN101465454A (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009100581403A Pending CN101465454A (en) | 2009-01-15 | 2009-01-15 | Radio frequency miniature matrix switch |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102686154A (en) * | 2010-11-30 | 2012-09-19 | 株式会社东芝 | Multi-channel high frequency signal switch device and magnetic resonance imaging apparatus provided with same |
| CN104967463A (en) * | 2015-04-23 | 2015-10-07 | 中国电子科技集团公司第四十一研究所 | Device of improving radio frequency switch matrix channel isolation |
| US9577631B2 (en) | 2015-02-13 | 2017-02-21 | Richwave Technology Corp. | Single pole multi-throw switch |
| WO2018119884A1 (en) * | 2016-12-29 | 2018-07-05 | 西安易朴通讯技术有限公司 | Switching system and switching method for self-adaptive antenna, and intelligent terminal |
| US10340704B2 (en) | 2015-02-13 | 2019-07-02 | Richwave Technology Corp. | Switch device with a wide bandwidth |
| CN110545144A (en) * | 2019-08-23 | 2019-12-06 | 深圳市信维通信股份有限公司 | Passive intermodulation test system of multiband multiaerial |
| CN111193514A (en) * | 2019-10-25 | 2020-05-22 | 电子科技大学 | High-synchronization-precision IRIG-B encoder |
| CN113300724A (en) * | 2021-05-14 | 2021-08-24 | 电子科技大学 | Switch matrix multi-beam assembly and switch matrix multi-beam expansion type assembly |
-
2009
- 2009-01-15 CN CNA2009100581403A patent/CN101465454A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102686154A (en) * | 2010-11-30 | 2012-09-19 | 株式会社东芝 | Multi-channel high frequency signal switch device and magnetic resonance imaging apparatus provided with same |
| CN102686154B (en) * | 2010-11-30 | 2015-01-07 | 株式会社东芝 | Multi-channel high frequency signal switch device and magnetic resonance imaging apparatus provided with same |
| US9577631B2 (en) | 2015-02-13 | 2017-02-21 | Richwave Technology Corp. | Single pole multi-throw switch |
| US10340704B2 (en) | 2015-02-13 | 2019-07-02 | Richwave Technology Corp. | Switch device with a wide bandwidth |
| CN104967463A (en) * | 2015-04-23 | 2015-10-07 | 中国电子科技集团公司第四十一研究所 | Device of improving radio frequency switch matrix channel isolation |
| CN104967463B (en) * | 2015-04-23 | 2018-07-24 | 中国电子科技集团公司第四十一研究所 | A kind of device improving RF switch matrix channel isolation |
| WO2018119884A1 (en) * | 2016-12-29 | 2018-07-05 | 西安易朴通讯技术有限公司 | Switching system and switching method for self-adaptive antenna, and intelligent terminal |
| US10707933B2 (en) | 2016-12-29 | 2020-07-07 | Xi'an Yep Telecommunication Technology., Ltd. | Adaptive antenna switching system and switching method, and intelligent terminal |
| CN110545144A (en) * | 2019-08-23 | 2019-12-06 | 深圳市信维通信股份有限公司 | Passive intermodulation test system of multiband multiaerial |
| CN111193514A (en) * | 2019-10-25 | 2020-05-22 | 电子科技大学 | High-synchronization-precision IRIG-B encoder |
| CN113300724A (en) * | 2021-05-14 | 2021-08-24 | 电子科技大学 | Switch matrix multi-beam assembly and switch matrix multi-beam expansion type assembly |
| CN113300724B (en) * | 2021-05-14 | 2022-02-15 | 电子科技大学 | Switch matrix multi-beam assembly and switch matrix multi-beam expansion type assembly |
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Application publication date: 20090624 |