Communications: radio wave antennas – Antennas – Microstrip
Patent
1998-02-10
2000-05-09
Le, Hoanganh
Communications: radio wave antennas
Antennas
Microstrip
343786, 343795, H01Q 138
Patent
active
060610263
ABSTRACT:
A high-gain monolithic antenna with high freedom of design has a signal circuit and a stripline dipole antenna which are provided on a substrate. A dielectric film and a conductor cover covering the dielectric film are provided on the upper surface of the substrate, in addition to a hole extending vertically downward to the underside of the substrate, a conductor wall being provided on the surface thereof. Furthermore, a metallic film is evaporated so as to contact both a metallic cover and a conductor wall. A first grounding conductor and a dielectric are provided on the lower surface of the substrate, and a second grounding conductor is provided on the upper surface of the substrate. A horn, which is tapered into the dielectric and the first grounding conductor thereby forming the shape of a quadrangular pyramid, is provided so as to overlap a hole etched into the substrate. Microwaves or milliwaves are radiated to/from the horn to/from the underside of the substrate.
REFERENCES:
patent: 4527165 (1985-07-01), De Ronde
patent: 4626865 (1986-12-01), Rammos
patent: 4888597 (1989-12-01), Rebiez et al.
J.F. McIlvenna, Monolithic Phased Arrays for EHF Communications Terminals, Microwave Journal, Mar. 1988, pp. 113-125.
D.M. Pozar et al, Comparison of Architectures for Monolithic Phased Array Antennas, Microwave Journal, Mar. 1986, pp. 93-104.
R.J. Mailloux, Phased Array Architecture for mm-Wave Active Arrays, Microwave Journal, Jul. 1986, Nov. 14, 1997, pp. 117-124.
F.K. Schwering, Millimeter Wave Antennas, Proceedings of The IEEE, Jan. 1992, pp. 92-102.
Hosoi Shigehiro
Imamura Souichi
Ochi Masanori
Ueno Yutaka
Kabushiki Kaisha Toshiba
Le Hoang-anh
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