Plane antenna with high gain and antenna efficiency

Details Plane antenna with high gain and antenna efficiency Plane antenna with high gain and antenna efficiency

1992-08-17

1994-01-11

Hajec, Donald

Communications: radio wave antennas

Antennas

Microstrip

343846, H01Q 138

Patent

active

052785696

ABSTRACT:
A plane antenna with high gain and antenna efficiency. The antenna includes an antenna unit comprising: a first dielectric body; a first grounding conductor body provided on a lower side of the first dielectric body; a current supply line in a form of a strip line provided on an upper side of the first dielectric body; a patch shaped radiative element provided on the upper side of the first dielectric body at an end of the current supply line; a second dielectric body formed on the upper side of the first dielectric body over the radiative element and the current supply line; and a second grounding conductor body provided on the upper side of the second dielectric body, which has a slot at a position located directly above the radiative element; wherein the radiative elements and the slots of the plane antenna are arranged in a planar array with a constant interval in two orthogonal directions, where the constant interval has a value equal to 0.72 to 0.93 or more preferably 0.85 to 0.93 times a wavelength corresponding to a central frequency of a frequency band for waves to be used.

REFERENCES:
patent: 3832716 (1974-08-01), Plunk
patent: 4426649 (1984-01-01), Dubost
patent: 4623893 (1986-11-01), Sabban
patent: 4761654 (1988-08-01), Zaghloul
patent: 4792810 (1988-12-01), Fukuzawa et al.
patent: 4816835 (1989-03-01), Abiko et al.
patent: 4843400 (1989-06-01), Tsao et al.
patent: 4857938 (1989-08-01), Tsukamoto et al.
patent: 4922263 (1990-05-01), Dubost
patent: 4977406 (1990-12-01), Tsukamoto
IEEE Transactions on Broadcasting, vol. 34, No. 4, Dec. 1988, pp. 457-464.

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