Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2007-12-18 11:00
A Miniaturized Microstrip Ring Resonator Lowpass Filter with Sharp Attenuation
Tuya Wuren, Iwata Sakagami, Minoru Tahara, Masafumi Fujii (Toyama Univ.) MW2007-127
Abstract (in Japanese) (See Japanese page) 
(in English) A miniaturized circuit of a microstrip ring resonator lowpass filter with sharp attenuation is proposed and investigated in this paper. Firstly, the theoretical analysis of a general ring circuit is presented by using formulae of transmission coefficient, then a low pass filter compensated by open stubs is reconsidered, and subsequently, miniaturized circuit of the low pass filter is proposed. The miniaturization of the circuit is realized by using a simple transmission line with two open stubs. However the reduced transmission line is equivalent to the original line not only at the fundamental frequency $f_0$ but also at frequency $2f_0$. In addition, because of the open stubs located at the input and the output ports, the equivalency also holds at frequency $1.5f_0$. Thus, the width of the stopband is maintained nearly as before. Therefore, the filter characteristic is not distorted after miniaturization. The transmission line parameter dependence of the filter characteristic is investigated. A theoretical result from a miniaturized circuit shows a broader stopband and a sharper cut off frequency response than the original one, though it also shows a larger minimum attenuation in stopband and smaller maximum attenuation in passband compared to the original one. Experimental results are shown for verification of the present study.
Keyword (in Japanese) (See Japanese page) 
(in English) Lowpass filter / Miniaturized / Ring resonator / Sharp attenuation / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 394, MW2007-127, pp. 1-5, Dec. 2007.
Paper # MW2007-127 
Date of Issue 2007-12-11 (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 MW2007-127

Conference Information
Committee MW  
Conference Date 2007-12-18 - 2007-12-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukui Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Technologies 
Paper Information
Registration To MW 
Conference Code 2007-12-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Miniaturized Microstrip Ring Resonator Lowpass Filter with Sharp Attenuation 
Sub Title (in English)  
Keyword(1) Lowpass filter  
Keyword(2) Miniaturized  
Keyword(3) Ring resonator  
Keyword(4) Sharp attenuation  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Tuya Wuren  
1st Author's Affiliation Toyama University (Toyama Univ.)
2nd Author's Name Iwata Sakagami  
2nd Author's Affiliation Toyama University (Toyama Univ.)
3rd Author's Name Minoru Tahara  
3rd Author's Affiliation Toyama University (Toyama Univ.)
4th Author's Name Masafumi Fujii  
4th Author's Affiliation Toyama University (Toyama Univ.)
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2007-12-18 11:00:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2007-127 
Volume (vol) vol.107 
Number (no) no.394 
Page pp.1-5 
#Pages 5 
Date of Issue 2007-12-11 (MW) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan