Title :
The Design of Planar Circulators for Broad-Band Operation
Author :
Miyoshi, Tanroku ; Miyauchi, Shinichi
Author_Institution :
Department of Electronic Engineering, Kobe University, Rokko, Nada, Kobe 657, Japan.
Abstract :
The stripline circulator used in MIC is considered one of ferrite planar circuits. We investigated the optimum shape and operation condition of the planar circulator for broad-band operation, perceiving the wider freedom of the planar structure in circuit design. The wideband planar circulator, designed using the powerful contour-integral method, is triangularly shaped with wide coupling ports. The 20 dB isolation fractional bandwidth of the designed circulator is about 50 percent. Experimental results are also presented.
Keywords :
Bandwidth; Circuit synthesis; Circulators; Ferrites; Magnetic materials; Microwave integrated circuits; Shape; Stripline; Voltage; Wideband;
Conference_Titel :
Microwave Conference, 1979. 9th European
Conference_Location :
Brighton, UK
DOI :
10.1109/EUMA.1979.332730
