Antenna device

Details Antenna device Antenna device

1998-05-06

2000-08-15

Wong, Don

Communications: radio wave antennas

Antennas

Microstrip

343829, 343846, H01Q 138

Patent

active

061043478

ABSTRACT:
A device for antennas, in particular dual-polarized microwave antennas with single-polarized patches, for which antennas reduced cross-polarization and reduced cross-coupling can be achieved without impairing the bandwidth of the antenna or increasing the occurrence of grating lobes. A modification of the traditionally rectangular geometry of the single-polarized patches is carried out. The modification is symmetrical in relation to the plane in which the linear-polarized signal lies for the respective patch. The modification involves the patches narrowing towards the ends along the respective polarization axis in such a manner that side edges which face side edges of adjacent patches are formed. In this way, the coupling between adjacent patches and also the cross-polarization in the respective patch are reduced.

REFERENCES:
patent: 4755821 (1988-07-01), Itoh et al.
patent: 4857938 (1989-08-01), Tsukamoto et al.
patent: 4903033 (1990-02-01), Tsao et al.
patent: 4977406 (1990-12-01), Tsukamoto et al.
patent: 5070339 (1991-12-01), Chu et al.
patent: 5181042 (1993-01-01), Kaise et al.
patent: 5278569 (1994-01-01), Ohta et al.
patent: 5694136 (1997-12-01), Westfall

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