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Advances in 94GHz Integrated Horn Monopulse Antennas

机译：94GHz集成喇叭单脉冲天线的研究进展

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Recent progress in integrated 94GHz monopulse antennas presented in the APS-91Conference is discussed (1). The structure consists of a single dipole suspended in one plane of an integrated horn cavity to obtain the sum pattern, and an anti-parallel pair of dipoles suspended in a different plane of the same horn cavity to achieve the difference pattern (Fig. 1). The sum and difference antennas are located 0.39 and 0.79 from the apex, and couple to the TE10 and TE20 modes of the horn cavity, respectively (2). Detectors are integrated or hybrid mounted at the apex of the sum antenna, and for the difference antenna, in the center of the transmission line structure between the dual dipoles. Advances made beyond previous work include attaching a machined extension with a step discontinuity to the mouth of the integrated portion of the horn. This extension increases the gain from 12dB to 20dB by introducing a discontinuity in the flare angle of the horn. Integrated, Horn Antenna, Monopulse.

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