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Paper Abstract and Keywords
Presentation 2014-01-16 14:25
A Dual-Band Reflection Type Phase Shifter Using Active Loads
Yuki Shoji, Kazuyoshi Sakamoto, Yasushi Itoh (Shonan Inst. of Tech.) ED2013-119 MW2013-184 Link to ES Tech. Rep. Archives: ED2013-119 MW2013-184
Abstract (in Japanese) (See Japanese page) 
(in English) A dual-band reflection type phase shifter using active loads is presented for realizing a wide phase-shifting range and low insertion loss. The active load is based on a common-emitter configuration of SiGe HBTs employing stacked LC resonators in the load circuit for a wide shifting-range as well as RC series feedback circuits between emitter and ground for improving insertion losses. Since the LC resonators with different resonant frequencies are stacked, the resonant frequency can be varied independently. The implemented dual-band reflection-type phase shifter using 0.35m SiGe HBTs with an ft of 25GHz and Si varactor diodes with a capacitance ratio of 2.5:1 has achieved a maximal phase shift of 307o and an insertion loss of 1.17dB at 0.4GHz, a maximal phase shift of 307.7o and an insertion loss of 2.44dB at 1GHz, respectively.
Keyword (in Japanese) (See Japanese page) 
(in English) microwaves / reflection-type phase shifter, / stacked LC resonator / SiGe HBT / active load / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 379, MW2013-184, pp. 53-56, Jan. 2014.
Paper # MW2013-184 
Date of Issue 2014-01-09 (ED, MW) 
ISSN Print edition: ISSN 0913-5685  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 ED2013-119 MW2013-184 Link to ES Tech. Rep. Archives: ED2013-119 MW2013-184

Conference Information
Committee ED MW  
Conference Date 2014-01-16 - 2014-01-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Power devices, High-speed and high-frequency devices, Microwave Technologies, etc. 
Paper Information
Registration To MW 
Conference Code 2014-01-ED-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Dual-Band Reflection Type Phase Shifter Using Active Loads 
Sub Title (in English)  
Keyword(1) microwaves  
Keyword(2) reflection-type phase shifter,  
Keyword(3) stacked LC resonator  
Keyword(4) SiGe HBT  
Keyword(5) active load  
1st Author's Name Yuki Shoji  
1st Author's Affiliation Shonan Institute of Technilogy (Shonan Inst. of Tech.)
2nd Author's Name Kazuyoshi Sakamoto  
2nd Author's Affiliation Shonan Institute of Technilogy (Shonan Inst. of Tech.)
3rd Author's Name Yasushi Itoh  
3rd Author's Affiliation Shonan Institute of Technilogy (Shonan Inst. of Tech.)
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Date Time 2014-01-16 14:25:00 
Presentation Time 25 
Registration for MW 
Paper # IEICE-ED2013-119,IEICE-MW2013-184 
Volume (vol) IEICE-113 
Number (no) no.378(ED), no.379(MW) 
Page pp.53-56 
#Pages IEICE-4 
Date of Issue IEICE-ED-2014-01-09,IEICE-MW-2014-01-09 

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