Radiating structure

Details Radiating structure Radiating structure

1998-08-31

2000-05-09

Wong, Don

Communications: radio wave antennas

Antennas

Microstrip

343846, 343848, H01Q 138

Patent

active

060610271

ABSTRACT:
A radiating structure, or antenna, includes an exciter patch which receives an excitation signal and a plurality of secondary patches which radiate the waves received from the exciter patch. The structure includes a reflective surface in the vicinity of the exciter patch and the secondary patches constitute semi-reflective surfaces. The combination is such that the waves radiated by the secondary patches are substantially in phase. The distance between the reflective surface and the secondary patches is substantially equal to half the wavelength to be transmitted. The structure maintains the purity of circular polarization over a wide angular sector.

REFERENCES:
patent: 4623893 (1986-11-01), Sabban
patent: 4847626 (1989-07-01), Kahler et al.
patent: 4857938 (1989-08-01), Tsukamoto et al.
patent: 5005019 (1991-04-01), Zaghloul et al.
patent: 5233364 (1993-08-01), Lefeuvre et al.
patent: 5278569 (1994-01-01), Ohta et al.
Lee et al, Circular Polarisation Characteristics of Parasitic Microstrip Antennas, Antennas and Propagation Society Symposium, 1991, Digest, No. 1, p. 310-313.

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