A broadband antenna array for sea scatter measurements |
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| Authors: | Ma M. Tveten L. |
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| Affiliation: | US Department of Commerce, Boulder, CO, USA; |
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| Abstract: | A nonuniformly spaced array of 25 side-terminated vertical half rhombics is synthesized for the entire high-frequency band. The array is to be used for both transmitting and receiving, as a sky-wave Doppler radar for sea scatter measurements. The array has the capability for providing a maximum transmitting-receiving product gain in the order of 60 dB at low take-off angles, a product azimuth pattern with a nominal beamwidth of2deg, a40degsectoral coverage, a final product sidelobe level of -38 dB, and a grating-lobe level of -30 dB. |
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