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| Presentation | 2015-11-19 15:15 Bandwidth Enhancement of Negative Capacitance Generated by Operational Amplifier Based Negative Impedance Converter Kenichi Matsumoto, Shoji Yamanaka, Yasushi Horii (Kansai Univ)  MW2015-127 Link to ES Tech. Rep. Archives: MW2015-127 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have succeeded to generate non-Foster reactance (negative capacitance) by using an operational amplifier OPA690 (Texas Instruments, GB product of 500MHz), but only in a frequency range from 40 MHz to 160 MHz so far. This report indicates that the upper limit of non-Foster frequency, 160 MHz, is determined by undesired inductance of circuit patterns on PCB, and proposes a method to suppress the influence of the pattern inductance by utilizing the differential behavior of operational amplifiers. In the demonstration, a negative capacitance of about -75 pF±10% is generated successfully from 64 MHz to 180 MHz. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Negative impedance converter / NIC / non-Foster / Negative capacitance / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 314, MW2015-127, pp. 41-46, Nov. 2015. | |
| Paper # | MW2015-127 | |
| Date of Issue | 2015-11-12 (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 | MW2015-127 Link to ES Tech. Rep. Archives: MW2015-127 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2015-11-19 - 2015-11-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Univ. of the Ryukyus |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2015-11-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Bandwidth Enhancement of Negative Capacitance Generated by Operational Amplifier Based Negative Impedance Converter |
| Sub Title (in English) | |
| Keyword(1) | Negative impedance converter |
| Keyword(2) | NIC |
| Keyword(3) | non-Foster |
| Keyword(4) | Negative capacitance |
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| 1st Author's Name | Kenichi Matsumoto |
| 1st Author's Affiliation | Kansai University (Kansai Univ) |
| 2nd Author's Name | Shoji Yamanaka |
| 2nd Author's Affiliation | Kansai University (Kansai Univ) |
| 3rd Author's Name | Yasushi Horii |
| 3rd Author's Affiliation | Kansai University (Kansai Univ) |
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| Speaker | Author-1 |
| Date Time | 2015-11-19 15:15:00 |
| Presentation Time | 30 minutes |
| Registration for | MW |
| Paper # | MW2015-127 |
| Volume (vol) | vol.115 |
| Number (no) | no.314 |
| Page | pp.41-46 |
| #Pages | 6 |
| Date of Issue | 2015-11-12 (MW) |
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