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| Presentation | 2011-06-24 10:30 Low Loss and Broadband Isolation Lumped Element Isolator Using Gyrator Circuit. Takaya Wada, Takashi Hasegawa, Yoshinori Taguchi, Reiji Nakajima (Murata Mfg. Co., Ltd)  MW2011-38 Link to ES Tech. Rep. Archives: MW2011-38 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A novel broadband Core-Isolator for modules of multi-standard and multi-band mobile handsets has been developed successfully. A new circuit configuration for extending the isolation frequency band is proposed. The equations of the insertion loss and the isolation bandwidth of a two-port isolator with resonant elements are derived from equivalent circuit using perturbation theory. They show that the isolation bandwidth gets wider depending on the ratio of inductor and capacitor of resonant elements without increasing the insertion loss. A 1.5 x 0.9 x 0.4 mm3 Core-Isolator with two electrodes of asymmetrical structure has been fabricated, which is mounted on a module substrate with resonant elements. It has an insertion loss of 0.5dB and an isolation of 10dB at 824-915MHz which is twice wider than conventional one. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Admittance matrix / Scattering parameters / Isolators / Gyrators / Inductors / Lumped element microwave circuits / Resonant elements / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 95, MW2011-38, pp. 35-39, June 2011. | |
| Paper # | MW2011-38 | |
| Date of Issue | 2011-06-16 (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 | MW2011-38 Link to ES Tech. Rep. Archives: MW2011-38 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2011-06-23 - 2011-06-24 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | National Institute for Fusion Science |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Signal Generation and Measurement / NA |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2011-06-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Low Loss and Broadband Isolation Lumped Element Isolator Using Gyrator Circuit. |
| Sub Title (in English) | |
| Keyword(1) | Admittance matrix |
| Keyword(2) | Scattering parameters |
| Keyword(3) | Isolators |
| Keyword(4) | Gyrators |
| Keyword(5) | Inductors |
| Keyword(6) | Lumped element microwave circuits |
| Keyword(7) | Resonant elements |
| Keyword(8) | |
| 1st Author's Name | Takaya Wada |
| 1st Author's Affiliation | Murata Manufacturing Co., ltd (Murata Mfg. Co., Ltd) |
| 2nd Author's Name | Takashi Hasegawa |
| 2nd Author's Affiliation | Murata Manufacturing Co., ltd (Murata Mfg. Co., Ltd) |
| 3rd Author's Name | Yoshinori Taguchi |
| 3rd Author's Affiliation | Murata Manufacturing Co., ltd (Murata Mfg. Co., Ltd) |
| 4th Author's Name | Reiji Nakajima |
| 4th Author's Affiliation | Murata Manufacturing Co., ltd (Murata Mfg. Co., Ltd) |
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| Speaker | Author-1 |
| Date Time | 2011-06-24 10:30:00 |
| Presentation Time | 30 minutes |
| Registration for | MW |
| Paper # | MW2011-38 |
| Volume (vol) | vol.111 |
| Number (no) | no.95 |
| Page | pp.35-39 |
| #Pages | 5 |
| Date of Issue | 2011-06-16 (MW) |
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