Design of improved Bragg reflectors for resonators in overmoded high-power microwave oscillators

J. Pretterebner

doi:10.1117/12.2301490

1 December 1990 Design of improved Bragg reflectors for resonators in overmoded high-power microwave oscillators

J. Pretterebner

Proceedings Volume 1514, 15th International Conference on Infrared and Millimeter Waves; 151428 (1990) https://doi.org/10.1117/12.2301490
Event: 15th International Conference on Infrared and Millimeter Waves, 1990, Orlando, FL, United States

Abstract

A Bragg reflector composed of periodic cylindrically symmetric corrugations can provide a reflection of nearly unity through the principles of constructive interference, resulting in a frequency selective resonator for overmoded high power oscillators as Gyro-TWT,CARM or FEL. Improved Bragg reflectors with Hamming- or Kaiser window distribution of the slot depth have been optimized using a scattering-matrix code. The features of such tapered corrugation amplitude are: high mode purity and ripple-free filter characteristics with predicable reflectivity. The field matching method (MAC) gives exact results even in the case when intercoupling resonances are close together and the simple coupled-mode theory is not valid.

Citation Download Citation

J. Pretterebner "Design of improved Bragg reflectors for resonators in overmoded high-power microwave oscillators", Proc. SPIE 1514, 15th International Conference on Infrared and Millimeter Waves, 151428 (1 December 1990); https://doi.org/10.1117/12.2301490

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