Abstract
With a family of ideal radiation patterns, the theory for designing high-efficiency phase-correcting FZP (Fresnel zone plate) antennas is presented. The optimum 3-dB beamwidth of the feed pattern as a function of F/D (focal length/diameter) of the plate, the relation between the phase efficiency of the antenna and the number of subzones used in each full-wave zone, and the total efficiency limits of various versions are given. It is found that the maximum efficiency of a practical FZP antenna is usually less than 70%. The theory has been employed in designing a four-layer experimental FZP reflector antenna, and good agreement between the theoretical expectation and the measured value is obtained.
Original language | English |
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Title of host publication | Antennas and Propagation Society International Symposium, AP-S 1991 |
Subtitle of host publication | Digest |
Place of Publication | Piscataway, NJ |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 182-185 |
Number of pages | 4 |
Volume | 1 |
ISBN (Print) | 0780301447 |
DOIs | |
Publication status | Published - 1991 |
Event | Antennas and Propagation Society Symposium - London, Ont, Can Duration: 24 Jun 1991 → 28 Jun 1991 |
Other
Other | Antennas and Propagation Society Symposium |
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City | London, Ont, Can |
Period | 24/06/91 → 28/06/91 |