Dual-frequency microstrip antenna with inserted strips

Details Dual-frequency microstrip antenna with inserted strips Dual-frequency microstrip antenna with inserted strips

1994-06-27

1995-11-28

Hajec, Donald T.

Communications: radio wave antennas

Antennas

Microstrip

333134, 333219, H01Q 138

Patent

active

054712211

ABSTRACT:
A dual-frequency microstrip antenna has three strips of bare low-dielectric aterial alternating with two strips of copper-clad (one side) high-dielectric material bonded close together on a copper plate having a feed inserted therethrough. A copper-claded layer (one side) low-dielectric material is placed over the five strips and bonded simultaneously. The inner strips separate the region of high-dielectric constant from the region of low-dielectric constant. The microstrip antenna is considered to be a lossy resonating cavity enclosed by a perfect electric conductor and by a perfect magnetic conductor.

REFERENCES:
patent: 3575674 (1971-04-01), Howe
patent: 4575725 (1986-03-01), Tresselt
patent: 4685210 (1987-08-01), King et al.
patent: 4761654 (1988-08-01), Zaghloul
patent: 4907006 (1990-03-01), Nishikawa et al.
patent: 4914445 (1990-04-01), Shoemaker
patent: 4933680 (1990-06-01), Shapiro et al.
patent: 5045819 (1991-09-01), Balanis et al.
patent: 5155493 (1992-10-01), Thursby et al.
patent: 5319378 (1994-06-01), Nalbandian et al.

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