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Paper Abstract and Keywords
Presentation 2014-12-23 11:35
Ultra-Compact Resonant-Tunneling-Diode Terahertz Oscillator Integrated with Slot-coupled Patch Antenna
Kohe Kasagi, Naoto Oshima, Safumi Suzuki, Masahiro Asada (Tokyo Tech) ED2014-112
Abstract (in Japanese) (See Japanese page) 
(in English) We proposed and fabricated resonant-tunneling-diode (RTD) terahertz oscillators integrated with slot-fed patch antennas to extract output power without using typical Si lenses. A square patch antenna with a 170-µm-long side was fabricated on a 7-µm-thick benzocyclobutene (BCB) layer stacked on an RTD with a slot resonator. The RTD oscillated at ~510 GHz, and an output power of ~40 µW radiated in the upward direction without the Si lens. An equivalent circuit model was proposed to estimate the output power, and the circuit parameters were derived from the calculated admittance by electromagnetic simulation. The radiation pattern of fabricated device was measured, and a directivity of 7 dBi was obtained. The tendency of the output power on the side length of the patch antenna agreed with the theoretical calculation. Higher output power was expected with the optimization of BCB thickness and RTD with a high current density.
Keyword (in Japanese) (See Japanese page) 
(in English) Terahertz Oscillator / Resonant-Tunneling-Diode / Slot-coupled Patch Antenna / / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 387, ED2014-112, pp. 79-84, Dec. 2014.
Paper # ED2014-112 
Date of Issue 2014-12-15 (ED) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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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Conference Information
Committee ED  
Conference Date 2014-12-22 - 2014-12-23 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ED 
Conference Code 2014-12-ED 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Ultra-Compact Resonant-Tunneling-Diode Terahertz Oscillator Integrated with Slot-coupled Patch Antenna 
Sub Title (in English)  
Keyword(1) Terahertz Oscillator  
Keyword(2) Resonant-Tunneling-Diode  
Keyword(3) Slot-coupled Patch Antenna  
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1st Author's Name Kohe Kasagi  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Naoto Oshima  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
3rd Author's Name Safumi Suzuki  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
4th Author's Name Masahiro Asada  
4th Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Speaker Author-1 
Date Time 2014-12-23 11:35:00 
Presentation Time 25 minutes 
Registration for ED 
Paper # ED2014-112 
Volume (vol) vol.114 
Number (no) no.387 
Page pp.79-84 
#Pages 6 
Date of Issue 2014-12-15 (ED) 

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