CN102723563A - Compact rectangular-waveguide impedance transducer - Google Patents
Compact rectangular-waveguide impedance transducer Download PDFInfo
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- CN102723563A CN102723563A CN2012102010507A CN201210201050A CN102723563A CN 102723563 A CN102723563 A CN 102723563A CN 2012102010507 A CN2012102010507 A CN 2012102010507A CN 201210201050 A CN201210201050 A CN 201210201050A CN 102723563 A CN102723563 A CN 102723563A
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Abstract
The invention discloses a compact rectangular-waveguide impedance transducer which comprises an input rectangular waveguide, an output rectangular waveguide and at least two connection rectangular waveguide sections connecting the input rectangular waveguide and the output rectangular waveguide, wherein the connection rectangular waveguides are mutually connected in pairs; the length of each connection rectangular waveguide section is B; at the highest frequency of the working frequency range, the waveguide wavelength of the TE10 mode of the connection rectangular waveguide section is C, and B<=C/6; and all connection rectangular waveguides have the same height. Through the invention, the connection surface of each rectangular waveguide has relatively high discontinuity, thus the compact rectangular-waveguide impedance transducer disclosed by the invention can meet the design requirement of a certain reflection coefficient in the frequency band; and the length of each connection rectangular waveguide section is 1/6 less than the waveguide wavelength of the dominant TE10 mode of the connection waveguide section at the highest frequency of the working frequency range, thus the structure is compact.
Description
Technical field
The present invention relates to a kind of compact rectangular-waveguide impedance transducer, the compact rectangular-waveguide impedance transducer that particularly a kind of rectangular waveguide that is interlaced by height is formed.
Background technology
Between the different rectangular waveguide of two joint characteristic impedances, add quarter wavelength impedance transducer, and then can realize impedance matching.For the broadening working band, common practice both domestic and external is to add the more piece impedance transformer, theoretically; The progression of more piece converter is many more; Its coupling frequency band is wide more, because of n joint converter has n transforming section, (n+1) individual joint face, (n+1) individual reflected wave is arranged correspondingly; When these reflected waves turn back to converter top; Superimposed with certain phase place (depending on its progressive error) and amplitude each other, the result of numerous reflected wave stacks that amplitude is very little, phase place is different always has some ripples and cancels each other out or partial offset, thereby makes total reflected wave in the frequency band of broad, keep less value.When the major defect of this converter is frequency band broadening, the increase of size and the raising of cost.
Summary of the invention
The object of the present invention is to provide a kind of rectangular-waveguide impedance transducer of compact.
To achieve these goals, the technical scheme of the present invention's employing is following: a kind of compact rectangular-waveguide impedance transducer comprises the input rectangular waveguide; The output rectangular waveguide; And at least 2 joint connect the input rectangular waveguide with export rectangular waveguide be connected the rectangular waveguide section, said connection rectangular waveguide section interconnects in twos, the length of said connection rectangular waveguide section is B; Highest frequency place at working frequency range; This connects the guide wavelength C of the TE10 mould of rectangular waveguide section, B≤C/6, and the height of all connection rectangular waveguide sections is identical.Identical can conveniently the production on a large scale of height of wherein all connection rectangular waveguide sections.
In order to reduce the joint number that connects the rectangular waveguide section, thereby reduce volume of the present invention, to output rectangular waveguide direction, the adjacent rectangle waveguide segment is along the short transverse arrangement that interlaces on its top from the input rectangular waveguide.That is, input rectangular waveguide, connection rectangular waveguide section, output rectangular waveguide connect successively, and after connecting, two adjacent parts are along their connecting line shift reverse.According to making a kind of upper surface and the same shape of all rectangular ripple in lower surface of rectangular-waveguide impedance transducer of compact after the above-mentioned action displacement.
Processing for ease makes that the present invention can large batch of production.The width of said input rectangular waveguide, output rectangular waveguide and connection rectangular waveguide section is identical.
Operation principle of the present invention: electromagnetic wave signal gets into from the waveguide of input shape; Discontinuity place in connecting the rectangular waveguide section; Will produce reflected wave, when these reflected waves turn back to converter top, superimposed with certain phase place (depending on its progressive error) and amplitude each other; The result of numerous reflected wave mutual superposition that amplitude is big, phase place is different always has some ripples and cancels each other out or partial offset, thereby makes total reflected wave in the frequency band of broad, keep less value.
Compared with prior art; Beneficial effect of the present invention is: there is bigger discontinuity in the joint face of each rectangular waveguide; Make the present invention can in frequency band, satisfy designing requirement to certain reflection coefficient; And the length that connects the rectangular waveguide section should connect less than the highest frequency place of working frequency range waveguide segment main mould TE10 mould guide wavelength 1/6, compact conformation.
Description of drawings
Fig. 1 is a longitudinal sectional drawing of the present invention.
Fig. 2 be rectangular-waveguide impedance transducer volume be connected rectangular waveguide segment length relation table
Label among the figure is expressed as respectively: 1, input rectangular waveguide; 2, output rectangular waveguide; 3, connect the rectangular waveguide section.
Embodiment
Below in conjunction with embodiment the present invention is done to specify further, but embodiment of the present invention is not limited thereto.
Embodiment 1
As shown in Figure 1, among Fig. 1, → be expressed as length direction, ↑ being expressed as short transverse, ⊕ is expressed as Width, and Width is outside the paper, points in the paper.
A kind of compact rectangular-waveguide impedance transducer comprises input rectangular waveguide 1, output rectangular waveguide 2; And at least 2 joint connect input rectangular waveguide 1 with export rectangular waveguide 2 be connected rectangular waveguide section 3, said connection rectangular waveguide 3 interconnects in twos, the length of said connection rectangular waveguide section 3 is B; Highest frequency place at working frequency range; This connects the guide wavelength C of the TE10 mould of rectangular waveguide section 3, B≤C/6, and the height of all connection rectangular waveguide sections 3 is identical.In order to reduce the joint number that connects rectangular waveguide section 3, thereby reduce volume of the present invention, to output rectangular waveguide 2 directions, the adjacent rectangle waveguide segment is along the short transverse arrangement that interlaces on its top from input rectangular waveguide 1.That is, input rectangular waveguide 1, connection rectangular waveguide section 3, output rectangular waveguide 2 connect successively, and after connecting, two adjacent parts are along the reverse horizontal shift of their connecting line.Processing for ease makes that the present invention can large batch of production.Said input rectangular waveguide 1, output rectangular waveguide 2 and to connect the width of rectangular waveguide section 3 identical.
Electromagnetic wave signal gets into from the input rectangular waveguide; Discontinuity place in connecting the rectangular waveguide section; Will produce reflected wave, when these reflected waves turn back to converter top, superimposed with certain phase place (depending on its progressive error) and amplitude each other; The result of numerous reflected wave mutual superposition that amplitude is big, phase place is different always has some ripples and cancels each other out or partial offset, thereby makes total reflected wave in the frequency band of broad, keep less value.
As shown in Figure 2, based on a kind of compact rectangular-waveguide impedance transducer of said mechanism design; Fig. 2 be rectangular-waveguide impedance transducer volume be connected rectangular waveguide segment length relation table, from Fig. 2, we find out, when B≤C/6, when promptly B was C/6 or C/7 or C/8 or C/9 or C/10, the volume of rectangular-waveguide impedance transducer was more and more littler.
Just can realize the present invention preferably as stated.
Claims (3)
1. compact rectangular-waveguide impedance transducer; It is characterized in that: comprise input rectangular waveguide (1), output rectangular waveguide (2), and at least 2 joints connect input rectangular waveguides (1) with export rectangular waveguide (2) be connected rectangular waveguide section (3); Said connection rectangular waveguide section (3) interconnects in twos; The length of said connection rectangular waveguide section (3) is B, and at the highest frequency place of working frequency range, this connects the guide wavelength C of the TE10 mould of rectangular waveguide section (3); B≤C/6, the height of all connection rectangular waveguide sections (3) is identical.
2. a kind of compact rectangular-waveguide impedance transducer according to claim 1 is characterized in that: to output rectangular waveguide (2) direction, the adjacent rectangle waveguide segment is along the short transverse arrangement that interlaces on its top from input rectangular waveguide (1).
3. a kind of compact rectangular-waveguide impedance transducer according to claim 1 is characterized in that: said input rectangular waveguide (1), output rectangular waveguide (2), and the width of connection rectangular waveguide section (3) is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102010507A CN102723563A (en) | 2012-06-19 | 2012-06-19 | Compact rectangular-waveguide impedance transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102010507A CN102723563A (en) | 2012-06-19 | 2012-06-19 | Compact rectangular-waveguide impedance transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102723563A true CN102723563A (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102010507A Pending CN102723563A (en) | 2012-06-19 | 2012-06-19 | Compact rectangular-waveguide impedance transducer |
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| CN (1) | CN102723563A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183336A (en) * | 2017-11-23 | 2018-06-19 | 北京遥感设备研究所 | A kind of compact ridge waveguide is to rectangular waveguide cross polarization converter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB650615A (en) * | 1947-08-20 | 1951-02-28 | Emi Ltd | Improvements in or relating to electric waveguides |
| US4041420A (en) * | 1976-06-30 | 1977-08-09 | Riblet Henry J | Shunted stepped waveguide transition |
| JP2008182621A (en) * | 2007-01-26 | 2008-08-07 | Japan Radio Co Ltd | Waveguide high-pass filter |
| CN101322283A (en) * | 2005-11-17 | 2008-12-10 | 爱立信股份有限公司 | T-shape waveguide twist-transformer |
| CN202616382U (en) * | 2012-06-19 | 2012-12-19 | 成都赛纳赛德科技有限公司 | Compact type rectangular-waveguide impedance transducer |
-
2012
- 2012-06-19 CN CN2012102010507A patent/CN102723563A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB650615A (en) * | 1947-08-20 | 1951-02-28 | Emi Ltd | Improvements in or relating to electric waveguides |
| US4041420A (en) * | 1976-06-30 | 1977-08-09 | Riblet Henry J | Shunted stepped waveguide transition |
| CN101322283A (en) * | 2005-11-17 | 2008-12-10 | 爱立信股份有限公司 | T-shape waveguide twist-transformer |
| JP2008182621A (en) * | 2007-01-26 | 2008-08-07 | Japan Radio Co Ltd | Waveguide high-pass filter |
| CN202616382U (en) * | 2012-06-19 | 2012-12-19 | 成都赛纳赛德科技有限公司 | Compact type rectangular-waveguide impedance transducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183336A (en) * | 2017-11-23 | 2018-06-19 | 北京遥感设备研究所 | A kind of compact ridge waveguide is to rectangular waveguide cross polarization converter |
| CN108183336B (en) * | 2017-11-23 | 2019-11-19 | 北京遥感设备研究所 | A kind of compact ridge waveguide is to rectangular waveguide cross polarization converter |
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Application publication date: 20121010 |