MODE CONVERSION METHODS FOR STRIP TRANSMISSION LINE NON-RECIPROCAL DEVICES.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
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The electromagnetic field requirements for obtaining non-reciprocity with ferrites in TEM-mode strip transmission lines are briefly discussed. The devices discussed use electron spin resonance for obtaining non-reciprocity. The requirement for circular polarization is pointed out and three simple linear-to-circular polarization conversion methods are developed. Test of the three circuits is described and the results from 8 to 12.4Gc. are presented in detail. It is concluded that moderate isolation is attainable over at least octave bandwidths and good isolation greater than 20 db. is attainable over at least 10-percent bandwidths. Recommendations for future investigations are included. Author
- Electrical and Electronic Equipment