Title :
Analysis and design of radial waveguide E-plane hybrids
Author :
Kishihara, Mitsuyoshi ; Kawai, Tadashi ; Kokubo, Yoshihiro ; Ohta, Isan
Author_Institution :
Himeji Inst. of Technol., Hyogo, Japan
fDate :
11/1/1999 12:00:00 AM
Abstract :
This paper presents a computer-aided design of two different types of radial waveguide E-plane 3 dB hybrids utilizing a newly derived magnetic impedance matrix. One is a novel configuration composed of four E-plane waveguides radially coupled to a circular cavity. The other is a modified rat-race circuit consisting of a coaxial cavity and four E-plane waveguides with an impedance transformer. As a result of optimizing the circuit structure and dimensions, a desirable hybrid performance is realized for both types. In addition, computed results by an electromagnetic field simulator are shown to verify this analytical and design method
Keywords :
CAD; cavity resonators; electrical engineering computing; impedance matrix; waveguide components; waveguide theory; 3 dB hybrids; CAD; E-plane hybrids; EM field simulation; circular cavity; coaxial cavity; computer-aided design; electromagnetic field simulation; impedance transformer; magnetic impedance matrix; modified rat-race circuit; radial waveguide hybrids; Analytical models; Coaxial components; Computational modeling; Coupling circuits; Design automation; Electromagnetic fields; Electromagnetic waveguides; Impedance; Magnetic analysis; Transmission line matrix methods;
Conference_Titel :
Microwave Conference, 1999 Asia Pacific
Print_ISBN :
0-7803-5761-2
DOI :
10.1109/APMC.1999.829918
