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Paper Abstract and Keywords
Presentation 2013-05-30 14:30
Theoretical Vista to Maximum Power Efficiency and Optimum Load Ratio for Radio Frequency Rectifiers via Half- and Full-Wave Flow Angle Equations
Takashi Ohira (Toyohashi Univ. of Tech.) MW2013-10
Abstract (in Japanese) (See Japanese page) 
(in English) This paper considers five kinds of circuit topologies for RF diode rectifiers: single series, single shunt, bridge, double voltage, and double current. Assuming a finite available power of an RF source, we presents a load optimization theory to maximize the output power of each rectifier. In the theory, flow angle φ plays the key role to describe the behavior of the circuit. The flow angle is dominated by equation tanφ - φ = Ψ(R/r), where Ψ(R/r) is a fractional function of load-to-source resistance ratio R/r. The flow angle gives the DC output power of the rectifier. By solving the flow-angle equation, we get the optimum load resistance. As a result, maximum efficiency reaches 81.1% at R/r = 1 for single-diode half wave rectifiers. It also reaches 92.3% for multiple-diode full wave ones at R/r = 1.347 in bridge with capacitor, 5.389 in double-voltage, and 0.1854 in double-current topologies.
Keyword (in Japanese) (See Japanese page) 
(in English) rectifier / diode / efficiency / optimum load / flow angle / bridge / double voltage / double current  
Reference Info. IEICE Tech. Rep., vol. 113, no. 70, MW2013-10, pp. 1-6, May 2013.
Paper # MW2013-10 
Date of Issue 2013-05-23 (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 MW2013-10

Conference Information
Committee MW  
Conference Date 2013-05-30 - 2013-05-31 
Place (in Japanese) (See Japanese page) 
Place (in English) Ryukoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Technologies 
Paper Information
Registration To MW 
Conference Code 2013-05-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Theoretical Vista to Maximum Power Efficiency and Optimum Load Ratio for Radio Frequency Rectifiers via Half- and Full-Wave Flow Angle Equations 
Sub Title (in English) * 
Keyword(1) rectifier  
Keyword(2) diode  
Keyword(3) efficiency  
Keyword(4) optimum load  
Keyword(5) flow angle  
Keyword(6) bridge  
Keyword(7) double voltage  
Keyword(8) double current  
1st Author's Name Takashi Ohira  
1st Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
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Speaker Author-1 
Date Time 2013-05-30 14:30:00 
Presentation Time 30 minutes 
Registration for MW 
Paper # MW2013-10 
Volume (vol) vol.113 
Number (no) no.70 
Page pp.1-6 
#Pages 6 
Date of Issue 2013-05-23 (MW) 

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