Tsunayuki YAMAMOTO


New Negative Refractive Index Material Composed of Dielectric Prisms with Metal Patterns
Hiroshi KUBO Kazuhiro NISHIBAYASHI Tsunayuki YAMAMOTO Atsushi SANADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/10/01
Vol. E96-C  No. 10  pp. 1273-1280
Type of Manuscript:  Special Section PAPER (Special Section on Emerging Technologies and Applications for Microwave and Millimeter-Wave Systems)
Category: 
Keyword: 
negative refractive index materialleft-handed materialequivalent circuitsuper lens
 Summary | Full Text:PDF(2MB)

Experimental Verifications of Left-Handed Characteristics of 3-D Left-Handed Metamaterial Composed of Periodic Wired Metallic Spheres
Tsunayuki YAMAMOTO Atsushi SANADA Hiroshi KUBO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/10/01
Vol. E95-C  No. 10  pp. 1652-1657
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
metamaterialleft-handed materialnegative refractive indicessuper-lens
 Summary | Full Text:PDF(2.1MB)

Propagation Characteristics on the Left-Handed Mode in the Material Composed of Metal Strips Put Alternately on Front and Back Sides
Hiroshi KUBO Takenori YOSHIDA Atsushi SANADA Tsunayuki YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/10/01
Vol. E95-C  No. 10  pp. 1658-1661
Type of Manuscript:  BRIEF PAPER
Category: 
Keyword: 
left-handed materialartificial dielectricartificial magnetic material
 Summary | Full Text:PDF(604.9KB)

Design of Highly Efficient and Compact RF-DC Conversion Circuit at mW-class by LE-FDTD Method
Tsunayuki YAMAMOTO Kazuhiro FUJIMORI Minoru SANAGI Shigeji NOGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/08/01
Vol. E93-C  No. 8  pp. 1323-1332
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
rectennaRF-DCSSPSLE-FDTD
 Summary | Full Text:PDF(1.3MB)