Active photonic forbidden band antennae

Details Active photonic forbidden band antennae Active photonic forbidden band antennae

2011-01-04

2011-01-04

Owens, Douglas W (Department: 2821)

Communications: radio wave antennas

Antennas

Antenna with parasitic director

C343S834000, C343S837000

Reexamination Certificate

active

07864132

ABSTRACT:
The present invention relates to an active photonic band gap antenna. In this case, the photonic band gap structure is constituted by metal rods, some of which are discontinuous, namely composed of sections of rods connected by a switching element such as a PIN diode. According to the invention, only one rod in a row of rods seen from the radiating source is discontinuous. The antenna pattern can be controlled at a low cost.

REFERENCES:
patent: 4728805 (1988-03-01), Dempsey
patent: 5293172 (1994-03-01), Lamberty et al.
patent: 2004/0027646 (2004-02-01), Miller et al.
patent: 1111718 (2001-06-01), None
G. Poilasne et al: “Antenna beam forming using active metallic photonic band-gap materials”, Antennas and Propagation Society, 1999, IEEE Int'l Symposium 1999, Jul. 11-16, 1999, vol. 2, Jul. 11, 1999, pp. 1328-1331.
M.L. Vanblaricum: “A brief history of photonic antenna reconfiguration” Microwave Photonics, 2000, Int'l Topical Meeting on Sep. 11-13, 2000, pp. 9-12.
Search Report Dated Mar. 7, 2006.

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