Takeshi TAKAHASHI


Realization of Attenuation Poles, Spurious Resonance Suppression and Size Reduction by Microstrip SIR Loaded with Dielectric Rods
Ramesh K. POKHAREL Kouji WADA Osamu HASHIMOTO Takeshi TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/12/01
Vol. E88-C  No. 12  pp. 2302-2309
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Technologies and Computational Electromagnetics)
Category: Devices
Keyword: 
attenuation poledielectric rodsFDTD methodspurious responsesSIRtapped λ/2 microstrip resonator
 Summary | Full Text:PDF(629.1KB)

A New Detection Approach for the Fingerprint Core Location Using Extended Relation Graph
Tomohiko OHTSUKA Takeshi TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/10/01
Vol. E88-D  No. 10  pp. 2308-2312
Type of Manuscript:  Special Section LETTER (Special Section on Image Recognition and Understanding)
Category: 
Keyword: 
fingerprintcore detectionextended relational graphridge directional image
 Summary | Full Text:PDF(2.6MB)

Proactive Handover Scheme Based on Forwarding Router Discovery for Mobile IP Networks
Takeshi TAKAHASHI Koichi ASATANI Jarmo HARJU Hideyoshi TOMINAGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/07/01
Vol. E88-B  No. 7  pp. 2718-2725
Type of Manuscript:  Special Section PAPER (Special Section on Mobile Multimedia Communications)
Category: 
Keyword: 
mobile IPhandovermobilityforwarding routerredundant routing
 Summary | Full Text:PDF(567.1KB)

A Method for LTCC Resonators to Realize Improved-Resonant Characteristics on Reduced-Size Microstrip Structure
Ramesh K. POKHAREL Kouji WADA Osamu HASHIMOTO Takeshi TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/09/01
Vol. E87-C  No. 9  pp. 1517-1523
Type of Manuscript:  Special Section PAPER (Special Section on Wave Technologies for Wireless and Optical Communications)
Category: Components and Devices
Keyword: 
dielectric rodsFDTD methodmicrostrip resonatorspurious responsesattenuation pole
 Summary | Full Text:PDF(793.1KB)

Accurate Q-Factor Evaluation by Resonance Curve Area Method and Its Application to the Cavity Perturbation
Taro MIURA Takeshi TAKAHASHI Makoto KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/06/25
Vol. E77-C  No. 6  pp. 900-907
Type of Manuscript:  Special Section PAPER (Special Issue on Measurement Techniques for Microwave/Millimeter Wave)
Category: 
Keyword: 
resonance curve area methodhalf power bandwidth methodcavity perturbationaccuracy improvementfrequency dispersion of loss tangent
 Summary | Full Text:PDF(646.4KB)