Paper Abstract and Keywords |
Presentation |
2018-11-16 11:30
Realization of Flat Passband Characteristics for BPF Using Resistor Loaded Hairpin Shaped Resonators Tomohiro Tsukushi, Satoshi Ono, Koji Wada (UEC) MW2018-109 Link to ES Tech. Rep. Archives: MW2018-109 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this study, firstly, the single mode resistor loaded hairpin shaped resonator is proposed. It is shown using some equations and electromagnetic (EM) simulation that unloaded quality factor can be controlled by setting position of resistor. Secondary, an equivalent circuit of a chip resistor is estimated using measured reflection characteristics of a chip resistor. Furthermore, a fourth order bandpass filter (BPF) having good frequency selectivity caused by attenuation poles and a flat passband is constructed by parallel coupling resonators of different values of unloaded quality factors. In this design procedure, the fourth order BPF is divided to two sections which mean a second order BPF with higher unloaded quality factors and that with lower unloaded quality factors. The second order BPF with higher quality factor is constructed using opened loop shaped resonators. Other BPF with lower quality factor is constructed using resistor loaded hairpin shaped resonators. The design parameters as external quality factors, coupling coefficients, resonant frequencies and unloaded quality factors are calculated using coupling matrix. Also, input/output (I/O) transmission lines between two types of BPF structures are configured. Finally, the circuit structure of the fourth order BPF included I/O transmission lines is configured using EM simulator. It is good agreement with design specification. Sharp frequency selectivity and flat passband characteristics of fourth order BPF are realized. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Resistor loaded hairpin shaped resonator / Opened loop resonator / Bandpass filter (BPF) / Frequency selectivity / Flat passband characteristics / Chip resistor / Coupling matrix / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 308, MW2018-109, pp. 89-94, Nov. 2018. |
Paper # |
MW2018-109 |
Date of Issue |
2018-11-08 (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 |
MW2018-109 Link to ES Tech. Rep. Archives: MW2018-109 |
Conference Information |
Committee |
MW |
Conference Date |
2018-11-15 - 2018-11-16 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Fukue Cultural Hall |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Microwave Technologies |
Paper Information |
Registration To |
MW |
Conference Code |
2018-11-MW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Realization of Flat Passband Characteristics for BPF Using Resistor Loaded Hairpin Shaped Resonators |
Sub Title (in English) |
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Keyword(1) |
Resistor loaded hairpin shaped resonator |
Keyword(2) |
Opened loop resonator |
Keyword(3) |
Bandpass filter (BPF) |
Keyword(4) |
Frequency selectivity |
Keyword(5) |
Flat passband characteristics |
Keyword(6) |
Chip resistor |
Keyword(7) |
Coupling matrix |
Keyword(8) |
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1st Author's Name |
Tomohiro Tsukushi |
1st Author's Affiliation |
University of Electro-Communications (UEC) |
2nd Author's Name |
Satoshi Ono |
2nd Author's Affiliation |
University of Electro-Communications (UEC) |
3rd Author's Name |
Koji Wada |
3rd Author's Affiliation |
University of Electro-Communications (UEC) |
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Speaker |
Author-1 |
Date Time |
2018-11-16 11:30:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
MW2018-109 |
Volume (vol) |
vol.118 |
Number (no) |
no.308 |
Page |
pp.89-94 |
#Pages |
6 |
Date of Issue |
2018-11-08 (MW) |
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