MILLIMETER AND SUBMILLIMETER COMPONENT DEVELOPMENT.
Quarterly rept. no. 4, Dec 64-Feb 65,
AIRBORNE INSTRUMENTS LAB DEER PARK N Y
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Single-resonator and double-resonator grating filters were investigated at 300 Gc. Also investigated were designs for broadening the stop-band region of the dielectric slab filters. Work has continued on Faraday rotation in oversize waveguide. The isolator structure has been redesigned. Tangential sensitivity measurements were made of the diode waveguide detectors to compare the standard and oversize mounts. Additional envelope detection and superheterodyne mixer experiments using bulk semiconductors were performed and improved performance was obtained using optimized InSb material. A conversion loss approaching 9 db has been obtained. Author