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Paper Abstract and Keywords
Presentation 2022-05-20 11:15
A Design of Lumped-Element Unequal Power Divider with Two Matching Frequencies
Masatoshi Fukunaga, Ayumu Tsuchiya, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo) MW2022-19
Abstract (in Japanese) (See Japanese page) 
(in English) The Wilkinson power divider, which distributes/combines microwave signals, is one of the key circuit components in a microwave circuit system. It consists of two quarter-wavelength lines and a resister, so its circuit size depends on the wavelength. Therefore, its circuit size is expected to be so large at relatively low frequency bands such as those used in the IoT. We have reported wide bandwidth and multiple outputs of circuits by using LC-ladder power dividers composed of lumped-element. This paper deals with an unequal power divider, which consists of nine lumped elements, that can be matched at any two frequencies. This circuit can achieve the same or wider bandwidth as the original circuit by holding the two frequencies close together. It also shows that can achieve two matching frequencies ratio of four by separating the two frequencies. Furthermore, we have designed and analyzed unequal power dividers in the 920MHz band as broadband circuits, confirming that effectiveness by a commercial electromagnetic simulator.
Keyword (in Japanese) (See Japanese page) 
(in English) Power divider / Unequal power divider / LC-ladder circuit / Broadband / Two matching frequencies / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 35, MW2022-19, pp. 23-27, May 2022.
Paper # MW2022-19 
Date of Issue 2022-05-12 (MW) 
ISSN Online edition: ISSN 2432-6380
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 MW2022-19

Conference Information
Committee MW  
Conference Date 2022-05-19 - 2022-05-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, etc. 
Paper Information
Registration To MW 
Conference Code 2022-05-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Design of Lumped-Element Unequal Power Divider with Two Matching Frequencies 
Sub Title (in English)  
Keyword(1) Power divider  
Keyword(2) Unequal power divider  
Keyword(3) LC-ladder circuit  
Keyword(4) Broadband  
Keyword(5) Two matching frequencies  
1st Author's Name Masatoshi Fukunaga  
1st Author's Affiliation University of Hyogo (Univ. of Hyogo)
2nd Author's Name Ayumu Tsuchiya  
2nd Author's Affiliation University of Hyogo (Univ. of Hyogo)
3rd Author's Name Tadashi Kawai  
3rd Author's Affiliation University of Hyogo (Univ. of Hyogo)
4th Author's Name Akira Enokihara  
4th Author's Affiliation University of Hyogo (Univ. of Hyogo)
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Speaker Author-1 
Date Time 2022-05-20 11:15:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2022-19 
Volume (vol) vol.122 
Number (no) no.35 
Page pp.23-27 
Date of Issue 2022-05-12 (MW) 

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