Bradley J. Ramsey

Abstract: Measured antenna patterns of an end-fed slotted waveguide antenna and a phased-array patch antenna used in maritime radionavigation radars across the frequency range 8500–10800 MHz are presented along with a measurement technique that characterizes the antenna patterns as a function of frequency. The frequency-dependent variation in the measured pattern of the slotted waveguide is compared to the frequency dependence of an ideal pattern based on the slot geometry. The implications for radar emissions measurement techniques are discussed.

Keywords: Radar Spectrum Engineering Criteria (RSEC); radar emission measurement techniques; radar antenna pattern; radar phased array antennas; squint angle

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