Ushio SANGAWA

Gradient Index Lens Antennas with Controllable Aperture Field Distributions
Ushio SANGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/06/01
Vol. E95-B  No. 6  pp. 2051-2058
Type of Manuscript: PAPER
Category: Antennas and Propagation
Keyword: 
lens antenna,  aperture field distribution,  gradient index lens,  ray tracing,  Levenberg-Marquardt method, 
  Summary |  Full Text:PDF (767.5KB)
Non-resonant Electromagnetic Scattering Properties of Menger's Sponge Composed of Isotropic Paraelectric Material
Ushio SANGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/02/01
Vol. E90-C  No. 2  pp. 484-491
Type of Manuscript: PAPER
Category: Electromagnetic Theory
Keyword: 
fractal,  Menger's sponge,  self-similarity,  stage number,  Born approximation,  recursion equation,  scattering amplitude, 
  Summary |  Full Text:PDF (1.4MB)
Resonance Analysis of Multilayered Filters with Triadic Cantor-Type One-Dimensional Quasi-Fractal Structures
Ushio SANGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/10/01
Vol. E88-C  No. 10  pp. 1981-1991
Type of Manuscript: PAPER
Category: Electromagnetic Theory
Keyword: 
multilayered filter,  fractal,  Cantor set,  Clifford algebra,  γ matrices,  localization,  self-similarity,  stage number, 
  Summary |  Full Text:PDF (936.8KB)
Analysis of Bandpass Filters with Shielded Inverted Microstrip Lines
Ushio SANGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/10/01
Vol. E87-C  No. 10  pp. 1715-1723
Type of Manuscript: PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
inverted microstrip line,  mode coupling,  dispersion,  bandpass filter (BPF),  parallel-coupled line,  attenuation pole, 
  Summary |  Full Text:PDF (703.5KB)
A Compact V-Band Filter/Antenna Integrated Receiver IC Built on Si-Micromachined BCB Suspended Structure
Kazuaki TAKAHASHI  Ushio SANGAWA  Suguru FUJITA  Michiaki MATSUO  Takeharu URABE  Hiroshi OGURA  Hiroyuki YABUKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/10/01
Vol. E84-C  No. 10  pp. 1506-1514
Type of Manuscript: Special Section PAPER (Special Issue on Millimeter-Wave Circuits and Fabrication Technologies Opening up the 21st Century)
Category: 
Keyword: 
micromachining,  suspended line,  benzocyclobutene,  filter,  antenna, 
  Summary |  Full Text:PDF (1.8MB)