30 August 1993 Transvar directional coupler for millimeter-wave application
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Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 210458 (1993) https://doi.org/10.1117/12.2298620
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom
Abstract
A millimeter-wave band coupler at 77.5 GHz with 6 dB couplinglevel has been developed. The coupler offered less than 2.0 dBinsertion loss, ± 0.5 dB variation in coupling level and a typicalisolation of 25 dB over approximately 10 GHz bandwidth. Otherfrequency band couplers with different coupling factor have beendeveloped also. The advantages of this type of directional couplerare its large flexible coupling level selection (from 0 to 100percent), simplicity in design, low cost and excellent producibility.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yonghui Shu, "Transvar directional coupler for millimeter-wave application", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 210458 (30 August 1993); doi: 10.1117/12.2298620; https://doi.org/10.1117/12.2298620
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