Communications: directive radio wave systems and devices (e.g. – Directive – Position indicating
Patent
1995-12-01
1998-09-08
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Position indicating
342 29, 364461, G01S 302
Patent
active
058051112
ABSTRACT:
A Traffic Alert and Collision Avoidance System(TCAS) antenna is mounted on a selected forward portion of an aircraft thereby extending the effective forward range of the TCAS. The antenna and ground plane are tilted relative to conventional TCAS antennas thereby aligning a peak of the antenna's radiation pattern along the aircraft's level line of flight. The resulting increased gain directed forward of the aircraft increases the forward range of the TCAS for both receiving and transmitting TCAS signals. The invention is also useful to extend the range of other aircraft systems including transponders. Alternate embodiments include tilting a conventional TCAS antenna mounted on a middle portion of the aircraft.
REFERENCES:
patent: 4027307 (1977-05-01), Litchford
patent: 4128839 (1978-12-01), McComas
patent: 4298875 (1981-11-01), Sullivan
patent: 4317119 (1982-02-01), Alvarez
patent: 4403220 (1983-09-01), Donovan
patent: 4855748 (1989-08-01), Brandao et al.
patent: 4975708 (1990-12-01), Stayton
patent: 5029092 (1991-07-01), Funatsu
PCT International application, International Publication No. WO 90/01202 to John Harold Dunlavy, published 8 Feb. 1990, entitled "Improvements to Aircraft Collision Avoidance".
"Introduction to TCAS II", U.S. Department of Transportation Federal Aviation Administration, Mar. 1990.
Constantine A. Balanis, "Antenna Theory Analysis and Design", Pub. by Harper & Row, 1982, pp. 514-520.
"TCAS II Study Guide", Honeywell Inc, Jan. 1993, Pub. No. 03-3841-09-04, pp. 2-1 through 2-5.
Brettner, III William Howard
Smith Mark Dean
Champion Ronald E.
Downs Brian C.
Honeywell Inc.
Phan Dao L.
Tarcza Thomas H.
LandOfFree
Method and apparatus for accomplishing extended range TCAS does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for accomplishing extended range TCAS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for accomplishing extended range TCAS will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1286188