Flatplate array antenna with polarizer lens

Details Flatplate array antenna with polarizer lens Flatplate array antenna with polarizer lens

1997-04-11

1998-09-29

Wimer, Michael C.

Communications: radio wave antennas

Antennas

With polarization filter or converter

343909, H01Q 1524

Patent

active

058151214

ABSTRACT:
An improved flatplate array antenna has a polarizer lens positioned adjacent the array. The polarizer lens is made of at least one dielectric sheet having an upper half and a lower half. Each half contains a set of parallel meanderlines positioned so that vertically or horizontally polarized RF energy emitted from the array passes through the lens and undergoes a phase advance or a phase retard, so that the RF energy passing through the upper half becomes circularly polarized in one direction and the RF energy passing through the lower half becomes circularly polarized in an opposite direction.

REFERENCES:
patent: 4063249 (1977-12-01), Bergander et al.
patent: 4266203 (1981-05-01), Saudreau et al.
Leslie M. Novak et al. "Optimal Polarization for Radar Detection and Recognition of Targets in Clutter," 1993 IEEE, pp. 79-83 no month.
Leo Young et al. "Meander-Line Polarization," IEEE Transaction on Antennas and Propogation, May, 1973.
Howard A. Zebker, et al. "Imaging Radar Polarimetry From Wave Synthesis," Journal of Goographical Research, vol., 92, No. B1, pp. 683-701, Jan. 10, 1987.

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