Paper Abstract and Keywords |
Presentation |
2022-11-15 14:30
Development of superconducting quad-band bandpass filter for a wideband receiver used in radio astronomy Sota Rachi, Keita Sakuma (Yamanashi Univ.), Takuya Akahori (NAOJ), Naoto Sekiya (Yamanashi Univ.) MW2022-114 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Mizusawa VLBI Observatory of the National Astronomical Observatory of Japan are promoting the development of broadband receivers in the ultra-high frequency (UHF) band (0.7~2.1 GHz). However, continuous broadband radio observations in the UHF band are not possible due to the presence of radio frequency interferences (RFI). We have developed a superconducting quad-band bandpass filter (QB-BPF) at 0.7, 1.4, 1.6, and 2.1 GHz for wideband receivers. That consists of two dual-band bandpass filters. We have devised an interdigital feeding structure with a high degree of freedom in designing external quality factor. The measured and simulated results of the QB-BPF are in good agreement. We have successfully developed a QB-BPF that overcomes the problem of extensive RFI. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
high-temperature superconductor / quad-band bandpass filter / radio astronomy / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 122, no. 250, MW2022-114, pp. 31-36, Nov. 2022. |
Paper # |
MW2022-114 |
Date of Issue |
2022-11-08 (MW) |
ISSN |
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) |
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MW2022-114 |
Conference Information |
Committee |
MW |
Conference Date |
2022-11-15 - 2022-11-16 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Fukue-Bunka-Kaikan |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Microwave, etc. |
Paper Information |
Registration To |
MW |
Conference Code |
2022-11-MW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Development of superconducting quad-band bandpass filter for a wideband receiver used in radio astronomy |
Sub Title (in English) |
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Keyword(1) |
high-temperature superconductor |
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quad-band bandpass filter |
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radio astronomy |
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1st Author's Name |
Sota Rachi |
1st Author's Affiliation |
Yamanashi University (Yamanashi Univ.) |
2nd Author's Name |
Keita Sakuma |
2nd Author's Affiliation |
Yamanashi University (Yamanashi Univ.) |
3rd Author's Name |
Takuya Akahori |
3rd Author's Affiliation |
National Astronomical Observatory of Japan (NAOJ) |
4th Author's Name |
Naoto Sekiya |
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Yamanashi University (Yamanashi Univ.) |
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Speaker |
Author-1 |
Date Time |
2022-11-15 14:30:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
MW2022-114 |
Volume (vol) |
vol.122 |
Number (no) |
no.250 |
Page |
pp.31-36 |
#Pages |
6 |
Date of Issue |
2022-11-08 (MW) |
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