Yuki KAWAHARA


Development of a 100 GHz Grooved Circular Empty Cavity for Complex Permittivity Measurements in W Band
Takashi SHIMIZU Yuki KAWAHARA Seizo AKASAKA Yoshinori KOGAMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/10/01
Vol. E94-C  No. 10  pp. 1650-1656
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Measurement Techniques
Keyword: 
cavity resonatorsmillimeter wave measurementsdielectric measurementscut-off circular waveguide method
 Summary | Full Text:PDF

A Waveguide Compatible NRD Guide E-Plane Bandpass Filter for 55 GHz Band OFDM Applications
Takashi SHIMIZU Yuki KAWAHARA Takayuki NAKAGAWA Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/09/01
Vol. E90-C  No. 9  pp. 1729-1735
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Passive Devices/Circuits
Keyword: 
bandpass filterNRD guideNRD guide E-plane resonatormillimeter wave
 Summary | Full Text:PDF

High-Efficiency, Dielectric Slab Leaky-Wave Antennas
Tasuku TESHIROGI Yuki KAWAHARA Aya YAMAMOTO Yuji SEKINE Nobuyuki BABA Masanao KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/09/01
Vol. E84-B  No. 9  pp. 2387-2394
Type of Manuscript:  Special Section PAPER (Special Issue on Innovation in Antennas and Propagation for Expanding Radio Systems)
Category: Millimeter-Wave Antennas
Keyword: 
millimeter waveleaky-wave antennadielectric slabantenna efficiency
 Summary | Full Text:PDF