Title :
A design of novel grooved circular waveguide polarizers
Author :
Yoneda, Naofumi ; Miyazaki, Moriyasu ; Matsumura, Hiroyuki ; Yamato, Masao
Author_Institution :
Inf. Technol. Res. & Dev. Center, Mitsubishi Electr. Corp., Kamakura, Japan
fDate :
12/1/2000 12:00:00 AM
Abstract :
This paper presents novel types of polarizers that are composed of grooved circular waveguides. The presented polarizers are suitable for realizing high-performance and low-fabrication cost in the Ka-band and above because of simple structure. Accurate analysis and design of the polarizers are performed using full-wave mode-matching techniques applied to the circular-to-rectangular waveguide T-junctions and cross-junctions. Ka-band grooved circular waveguide polarizers fabricated with the aid of the analysis and design techniques have realized excellent performance without tuning elements
Keywords :
circular waveguides; mode matching; waveguide components; waveguide transitions; Ka-band; circular-to-rectangular waveguide T-junction; circular-to-rectangular waveguide cross-junction; design; full-wave mode-matching method; grooved circular waveguide polarizer; Antenna feeds; Costs; Degradation; Design methodology; Dielectrics; Electromagnetic wave polarization; Electromagnetic waveguides; Manufacturing; Performance analysis; Waveguide junctions;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
