| Presentation | 2008-07-25 High Directivity Coupler Suppressing Undesired Coupling with Cancellation Circuit of Wilkinson Divider Kazuhisa Yamauchi, Masatoshi Nakayama, Akira Inoue, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A high directivity microstrip coupler suppressing undesired coupling with a cancellation circuit of a Wilkinson divider is presented. The presented coupler utilizes a cancellation circuit between a coupling port and an isolation port of the conventional microstrip coupler to enhance the isolation at the desired frequency. The cancellation circuit consists of the Wilkinson divider, and an attenuator. The isolation enhancement frequency can be controlled by the attenuator. The cancellation circuit can be applied to the couplers that have already been fabricated. The measured directivity of the presented coupler is improved from 4.8dB to 43dB at 2.6GHz, and the relative band width of 27.4% with the directivity of over 20dB can be achieved, compared with the conventional coupler. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | microwave / amplifier / microstrip coupler / directivity |
| Paper # | MW2008-76,OPE2008-59 |
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| Conference Information | |
| Committee | OPE |
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| Conference Date | 2008/7/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Optoelectronics (OPE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | High Directivity Coupler Suppressing Undesired Coupling with Cancellation Circuit of Wilkinson Divider |
| Sub Title (in English) | |
| Keyword(1) | microwave |
| Keyword(2) | amplifier |
| Keyword(3) | microstrip coupler |
| Keyword(4) | directivity |
| 1st Author's Name | Kazuhisa Yamauchi |
| 1st Author's Affiliation | Mitsubishi Electric Corporation() |
| 2nd Author's Name | Masatoshi Nakayama |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation |
| 3rd Author's Name | Akira Inoue |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation |
| Date | 2008-07-25 |
| Paper # | MW2008-76,OPE2008-59 |
| Volume (vol) | vol.108 |
| Number (no) | 155 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |