High gain antenna for wireless applications

Details High gain antenna for wireless applications High gain antenna for wireless applications

2006-08-08

2006-08-08

Phan, Tho (Department: 2821)

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

C343S810000, C343S818000

Reexamination Certificate

active

07088306

ABSTRACT:
An antenna includes a ground plane and an active antenna element adjacent the ground plane. Passive antenna elements are adjacent the ground plane, and are spaced apart from the active antenna element. First parasitic gratings are adjacent the ground plane and are spaced apart from the active antenna element. Each first parasitic grating is between two adjacent passive antenna elements. A controller selectably controls the passive antenna elements for operating in a reflective mode or a directive mode. The controller includes for each respective passive antenna element at least one impedance element connected to the ground plane, and a switch adjacent the ground plane for connecting the at least one impedance element to the passive antenna element so that the passive antenna element operates in the reflective or directive mode.

REFERENCES:
patent: 2928087 (1960-03-01), Parker
patent: 3109175 (1963-10-01), Lloyd
patent: 3560978 (1971-02-01), Himmel et al.
patent: 3846799 (1974-11-01), Gueguen
patent: 3996592 (1976-12-01), Kline et al.
patent: 4071847 (1978-01-01), Pickles
patent: 4329690 (1982-05-01), Parker
patent: 4387378 (1983-06-01), Henderson
patent: 4555708 (1985-11-01), Waineo et al.
patent: 4700197 (1987-10-01), Milne
patent: 5132698 (1992-07-01), Swineford
patent: 5293172 (1994-03-01), Lamberty et al.
patent: 5506591 (1996-04-01), Dienes
patent: 5617102 (1997-04-01), Prater
patent: 5629713 (1997-05-01), Mailandt et al.
patent: 5872547 (1999-02-01), Martek
patent: 5905473 (1999-05-01), Taenzer
patent: 6317092 (2001-11-01), De Schweinitz et al.
patent: 6369770 (2002-04-01), Gothard et al.
patent: 6407719 (2002-06-01), Ohira et al.
patent: 6606057 (2003-08-01), Chiang et al.
patent: 6888504 (2005-05-01), Chiang et al.
patent: 2002/0003497 (2002-01-01), Gilbert et al.
patent: 2002/0024468 (2002-02-01), Palmer et al.
patent: 1035614 (2000-09-01), None
Kraus, Antennas, Second Edition, McGraw Hill (Series in Electrical Engineering, Electronics & Electronic Circuits), 1988, pp. 754-762.
Ohira et al., Electronically Steerable Passive Array Radiator Antennas for Low-Cost Analog Adaptive Beamforming, 0-7803-6345-0/00, 2000, IEEE.
Scott et al., Diversity Gain From a Single-Port Adaptive Antenna Using Switched Parasitic Elements Illustrated with a Wire and Monopole Prototype, IEEE Transactions on Antennas and Propagation, vol. 47, No. 6, Jun. 1999.
King, The Theory of Linear Antennas, pp. 622-637, Harvard University Press, Cambridge, Mass., 1956.
Lo et al., Antenna Handbook: Theory, Applications and Design, pp. 21-38, Van Nostrand Reinhold Co., New York, 1988.

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