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| Presentation | 2020-01-31 14:00 Study on a tunable multiplexer composed of tunable second-order BPFs using BST varactor loaded asymmetric hairpin resonators featuring easy adjustable of coupling coefficients. Haruka Ogikubo, Satoshi Ono, Koji Wada (UEC)  CAS2019-89 ICTSSL2019-58 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This report proposed an asymmetric hairpin resonator loaded with a BST varactor which is a variable capacitor made of ${rm (Ba_xSr_{1-x})TiO_3}$. Also, a tunable bandpass filter (BPF) featuring easy adjustable of coupling coefficients composed using those resonators is proposed. Moreover, a tunable diplexer composed two tunable BPFs which have different operation frequencies are designed. Firstly, the trends and target values of coupling coefficients and external quality factors against operation frequencies are calculated. The second-order tunable BPF using the asymmetric hairpin resonators loaded with a BST varactor is designed after the asymmetric hairpin resonator is configured as following the those trends. And, the frequency characteristics of tunable BPFs using BST or Si varactors are compared. Secondly, two type structures for tunable BPFs using those resonators which have different operation frequencies are configured. Finally, the circuit structure and simulaiton results of the tunable diplexer are shown. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | tunable filter / interdigital coupled-line / varactor diode / BST varactor / asymmetric hairpin resonator / multiplexer / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 400, CAS2019-89, pp. 131-136, Jan. 2020. | |
| Paper # | CAS2019-89 | |
| Date of Issue | 2020-01-23 (CAS, ICTSSL) | |
| 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 | CAS2019-89 ICTSSL2019-58 |
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| Conference Information | |
| Committee | ICTSSL CAS |
| Conference Date | 2020-01-30 - 2020-01-31 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | CAS |
| Conference Code | 2020-01-ICTSSL-CAS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on a tunable multiplexer composed of tunable second-order BPFs using BST varactor loaded asymmetric hairpin resonators featuring easy adjustable of coupling coefficients. |
| Sub Title (in English) | |
| Keyword(1) | tunable filter |
| Keyword(2) | interdigital coupled-line |
| Keyword(3) | varactor diode |
| Keyword(4) | BST varactor |
| Keyword(5) | asymmetric hairpin resonator |
| Keyword(6) | multiplexer |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Haruka Ogikubo |
| 1st Author's Affiliation | The University of Electro-Communications (UEC) |
| 2nd Author's Name | Satoshi Ono |
| 2nd Author's Affiliation | The University of Electro-Communications (UEC) |
| 3rd Author's Name | Koji Wada |
| 3rd Author's Affiliation | The University of Electro-Communications (UEC) |
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| Speaker | Author-1 |
| Date Time | 2020-01-31 14:00:00 |
| Presentation Time | 25 minutes |
| Registration for | CAS |
| Paper # | CAS2019-89, ICTSSL2019-58 |
| Volume (vol) | vol.119 |
| Number (no) | no.400(CAS), no.401(ICTSSL) |
| Page | pp.131-136 |
| #Pages | 6 |
| Date of Issue | 2020-01-23 (CAS, ICTSSL) |
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