1 December 1990 94GHz integrated-horn antennas: impedance, patterns and double-polarized applications
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Proceedings Volume 1514, 15th International Conference on Infrared and Millimeter Waves; 15145L (1990) https://doi.org/10.1117/12.2301611
Event: 15th International Conference on Infrared and Millimeter Waves, 1990, Orlando, FL, United States
Abstract
The theoretical and experimental patterns and input impedance of a dipole-fed horn antenna in a ground-plane are presented. The results indicate that the E-plane patterns of a horn antenna in a ground-plane and a horn antenna in a two-dimensional array differ for angles greater than 40°. The input impedance and resonant length are a strong function of the dipole position inside the cavity, and vary from 40Ω to 170Ω and 0.37λ to 0.45λ, respectively. A dual-polarized horn antenna using a novel two- dipole feed is also presented. The orthogonal channels show identical patterns and -23dB polarization isolation at 92GHz. The dual-polarized antenna is well suited for millimeter- wave polarimetric synthetic-aperture radars, radio-astromomical receivers and highefficiency balanced-mixer receivers.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
W. Y. Ali-Ahmad, W. Y. Ali-Ahmad, } "94GHz integrated-horn antennas: impedance, patterns and double-polarized applications", Proc. SPIE 1514, 15th International Conference on Infrared and Millimeter Waves, 15145L (1 December 1990); doi: 10.1117/12.2301611; https://doi.org/10.1117/12.2301611
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