Communications: radio wave antennas – Antennas – Microstrip
Patent
1980-07-07
1982-03-16
Lieberman, Eli
Communications: radio wave antennas
Antennas
Microstrip
343769, H01Q 138, H01Q 1318
Patent
active
043204023
ABSTRACT:
A broadband microstrip antenna including two overlapping PC boards. A plurality of concentric spaced apart radiating rings and an upper ground plane layer are etched in the conductive upper surface of the upper PC board. An RF feedline network is etched in the conductive lower surface of the upper PC board. A continuous ground plane layer overlies the lower surface of the lower PC board. Plated through holes in the upper PC board connect a pair of 90.degree. spaced feed points on each of the rings to the feedline network. The feedline network is made of a plurality of conductive strips and matching stubs which are dimensioned and interconnected to permit the transmission/reception of circular polarized RF electromagnetic radiation while also matching the impedance of the rings to the impedance of a plurality of coaxial connectors mounted to the lower PC board.
REFERENCES:
patent: Re29911 (1979-02-01), Munson
patent: 2791769 (1957-05-01), Lindenblad
patent: 2996610 (1961-08-01), Relis
patent: 3016536 (1962-01-01), Fubini
patent: 3475755 (1969-10-01), Bassen et al.
patent: 3478362 (1969-11-01), Ricardi et al.
patent: 3665480 (1972-05-01), Fassett
patent: 3680136 (1972-07-01), Collings
patent: 3707711 (1972-12-01), Cole et al.
patent: 3739386 (1973-06-01), Jones, Jr.
patent: 3803623 (1974-04-01), Charlot, Jr.
patent: 3810183 (1974-05-01), Krutsinger et al.
patent: 3823404 (1974-07-01), Buie, Jr.
patent: 3971125 (1976-07-01), Thies, Jr.
patent: 4012741 (1977-03-01), Johnson
patent: 4053895 (1977-10-01), Malagisi
patent: 4054874 (1977-10-01), Oltman, Jr.
patent: 4079268 (1978-03-01), Fletcher et al.
patent: 4125837 (1978-11-01), Kaloi
patent: 4125838 (1978-11-01), Kaloi
patent: 4125839 (1978-11-01), Kaloi
patent: 4131892 (1978-12-01), Munson et al.
patent: 4131893 (1978-12-01), Munson et al.
patent: 4160976 (1979-07-01), Conroy
patent: 4163236 (1979-07-01), Kaloi
patent: 4170012 (1979-10-01), Kaloi
patent: 4208660 (1980-06-01), McOwen
General Dynamics Corp. Electronics Division
Lieberman Eli
LandOfFree
Multiple ring microstrip antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiple ring microstrip antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple ring microstrip antenna will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1644299