Title :
A design technique for raising upper frequency limit of wide-band 180/spl deg/ hybrids
Author :
Nakajima, M. ; Tanabe, H.
Author_Institution :
Tokimec Inc., Tokyo, Japan
Abstract :
A design technique combining Rectangular Boundary Division method and Finite-Difference Time-Domain method is proposed for raising upper frequency limit of 180/spl deg/ hybrids. Characteristics of a designed 180/spl deg/ hybrid covering 2 to 26.5 GHz are shown as experimental results.
Keywords :
finite difference time-domain analysis; waveguide couplers; 2 to 26.5 GHz; design; finite-difference time-domain method; rectangular boundary division method; tapered coupled-line magic-T junction; upper frequency limit; wide-band 180/spl deg/ hybrid; Air gaps; Capacitance; Conducting materials; Design optimization; Dielectrics; Frequency; Hybrid junctions; Impedance; Strips; Wideband;
Conference_Titel :
Microwave Symposium Digest, 1996., IEEE MTT-S International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3246-6
DOI :
10.1109/MWSYM.1996.511078
