Title :
Mode 1 and mode 2 designs for 94-GHz microstrip circulators
Author :
Borjak, A.M. ; Davis, L.E.
Author_Institution :
Dept. of Electr. Eng. & Electron., Univ. Manchester Inst. of Sci. & Technol., UK
Abstract :
Details are given of two theoretical design for a 94-GHz ferrite circulator in a quartz substrate, based on circulation modes 1 and 2, and their predicted performances are described. The 15-dB isolation bandwidths are 8 GHz and 3 GHz, respectively. The narrower bandwidth design has a larger ferrite radius, and this may provide some mechanical advantages in manufacturing. Other comparisons are made.<>
Keywords :
circulators (microwave); ferrite devices; microstrip components; 3 GHz; 8 GHz; 94 GHz; EHF; MM-wave type; SiO/sub 2/; Y-disc type; ferrite circulator; microstrip circulators; millimetre wave; mode 1; mode 2; quartz substrate; theoretical design; Bandwidth; Circulators; Dielectric materials; Ferrites; Frequency; Impedance; Manufacturing; Microstrip; Production; Saturation magnetization;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
