H
Hiroyuki Deguchi
Researcher at Doshisha University
Publications - 164
Citations - 930
Hiroyuki Deguchi is an academic researcher from Doshisha University. The author has contributed to research in topics: Horn antenna & Band-pass filter. The author has an hindex of 14, co-authored 159 publications receiving 867 citations. Previous affiliations of Hiroyuki Deguchi include Nippon Telegraph and Telephone & Mitsubishi.
Papers
More filters
Journal ArticleDOI
Multiband single-layer frequency selective surface designed by combination of genetic algorithm and geometry-refinement technique
TL;DR: In this article, the authors proposed an optimization-design method for the frequency selective surface (FSS) based on the GA incorporated with a geometry-refinement technique, which takes the connectivity condition of the elements into consideration, thereby resulting in an easy fabrication.
Journal ArticleDOI
Novel waveguide filters with multiple attenuation poles using dual-behavior resonance of frequency-selective surfaces
TL;DR: In this article, a waveguide filter consisting of frequency-selective surfaces (FSSs) was developed to realize both the drastic size reduction and multiple attenuation poles in stopbands at both sides of passband.
Journal ArticleDOI
Compact low-cross-polarization horn antennas with serpentine-shaped taper
TL;DR: In this paper, a compact horn with low cross polarization component less than -35 dB over 5% frequency bandwidth has been obtained by optimizing the taper configuration, which is represented by varying lengths of various uniform waveguides in stepwise approximation while keeping the dimension of each step discontinuity constant.
Journal ArticleDOI
Design of rotational dielectric dome with linear array feed for wide‐angle multibeam antenna applications
TL;DR: In this article, the shape and thickness of a dielectric dome was optimized to achieve multibeam emission with a uniform high gain for a wide range of angles, where a decrease in gain is avoided over a wide ranges of angles up to 70°.
Patent
Method, device, and system for evaluating characteristics of optical fiber transmission line
TL;DR: In this article, an optical amplifier including a pumping source for supplying pump light to an optical fiber transmission line is provided so that at least a part of the optical transmission line produces Raman amplification to the optical signal.