1 January 1994 A quasioptical sum-and-difference transformer
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Proceedings Volume 2250, International Conference on Millimeter and Submillimeter Waves and Applications 1994; 22506U (1994) https://doi.org/10.1117/12.2303263
Event: Millimeter and Submillimeter Waves and Applications: International Conference, 1994, San Diego, CA, United States
Abstract
Design of monopulse radars of short wavelengh region of the millimeter wave range and the submillimeter one is limited because of the absence of a number of functional elements, in particular sum-and-difference transformers. Scale modelling of more long-wavelenght analogs is ruled out because of the loss increasing and excessive high requirements for design accuracy of diminutive waveguide devices. Quasioptical sum-and-difference transformer, providing transformation of four cophasal signals of a monopulse radar feeding into summary one and two difference ones, namely azimuthal and elevation angle difference signals, formed on the base of balance bridge' using metal- dielectric beamguide (MDB) of round or squire cross-section is considered below. Interior surface of MDB is covered by a layer of dielectric of nonresonant thickness. At this loss in 10x10 mm cross-section. MDB in operating frequency range from 0.74 to 1.7 mm is less than 0.4 dB.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. S. Yanovsky, "A quasioptical sum-and-difference transformer", Proc. SPIE 2250, International Conference on Millimeter and Submillimeter Waves and Applications 1994, 22506U (1 January 1994); doi: 10.1117/12.2303263; https://doi.org/10.1117/12.2303263
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