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Performance of the wire-grid lens HF antenna

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5 Author(s)
Jones, E. ; Granger Associates, Palo Alto, CA, USA ; Tanner, R. ; Sharp, E. ; Andreasen, M.G.
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The wire-grid lens HF antenna is a high-frequency realization of a two-dimensional Luneburg lens. This vertically polarized high-directivity 36-beam circular antenna can operate over a 10/1 frequency band. When receiving a signal on a single beam, it exhibits a low binary-error rate equivalent to that of a nest of three high-gain rhombics required to cover the same frequency band. Improved reception is obtained by receiving a signal on a pair of adjacent beams operating in the angle-diversity mode. As a direction-finding antenna, its accuracy is limited primarily by irregularities in ionospheric propagation. Its theoretical performance, which has been calculated with precision on a high-speed digital computer, is compared with its measured performance.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:15 ,  Issue: 6 )

Date of Publication:

November 1967

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