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| Presentation | 2017-05-19 10:30 Fundamental Consideration of Passband Design for Electromagnetically-Coupled Half-Wavelength Resonator Filters Ayaka Shimizu, Toshio Ishizaki (Ryukoku Univ.)  MW2017-15 Link to ES Tech. Rep. Archives: MW2017-15 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently,many small base stations are installed additionally. But, duplexer occupies about half of the volume of a small base station.Thus, further miniaturization of filter is required. Attenuation outside the passband will become steeper by forming attenuation pole near the passband.As a result, a small filter with a fewer number of resonators can be used. The objective of this study is to establish an analytical design method for half-wavelength coupled-resonator filters. In the preceding study, it was confirmed that three attenuation pole frequencies were calculated analytically, and a good passband characteristic was obtained. But,influences of electrical length of coupled-lines and the couplingwere not considered.Thus,circuit parameters which achieve three designated attenuation pole frequencies and desired passband characteristic cannot be obtained as solutions of an inverse problem. So,the influencesof electrical length and coupling on attenuation pole frequencies and passband characteristic were simulated.And design charts for designing passband characteristic was created. It was shown that desired passband characteristic and three attenuation pole frequencies could be set to desired values. Finally, the filter performance designed based on this technique was confirmed. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Filters with Attenuation Poles / Half-Wavelength / Electromagnetic Coupling / Base-Station / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 34, MW2017-15, pp. 43-47, May 2017. | |
| Paper # | MW2017-15 | |
| Date of Issue | 2017-05-11 (MW) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | MW2017-15 Link to ES Tech. Rep. Archives: MW2017-15 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2017-05-18 - 2017-05-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka Univ. (Seminar Room1, Osaka Univ. Kaikan) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2017-05-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fundamental Consideration of Passband Design for Electromagnetically-Coupled Half-Wavelength Resonator Filters |
| Sub Title (in English) | |
| Keyword(1) | Filters with Attenuation Poles |
| Keyword(2) | Half-Wavelength |
| Keyword(3) | Electromagnetic Coupling |
| Keyword(4) | Base-Station |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Ayaka Shimizu |
| 1st Author's Affiliation | Ryukoku University (Ryukoku Univ.) |
| 2nd Author's Name | Toshio Ishizaki |
| 2nd Author's Affiliation | Ryukoku University (Ryukoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2017-05-19 10:30:00 |
| Presentation Time | 25 minutes |
| Registration for | MW |
| Paper # | MW2017-15 |
| Volume (vol) | vol.117 |
| Number (no) | no.34 |
| Page | pp.43-47 |
| #Pages | 5 |
| Date of Issue | 2017-05-11 (MW) |
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