Communications: radio wave antennas – Antennas – Antenna with parasitic reflector
Patent
1993-01-05
1994-04-05
Hille, Rolf
Communications: radio wave antennas
Antennas
Antenna with parasitic reflector
343851, H01Q 19130, H01Q 9200
Patent
active
053009410
ABSTRACT:
An integrated semi-parabolic antenna/down converter MMDS receiving system wherein the support boom of a semi-parabolic antenna contains the down converter electronics. Located at the focal area of the semi-parabolic antenna are a pair of driven feed elements which are directly connected to the printed circuit board carrying the down converter electronics. The down converter is formed in an elongated shape to fit entirely within the formed hollow interior of the support boom. The down converter comprises a first printed circuit board which contains an RF filter located at the input end of the printed circuit board. The input of the RF filter circuit is directly connected to the pair of driven feed elements by soldering the legs of the driven feed elements directly to the input of the RF filter stage on the first printed circuit board. The RF filter is surrounded by an input ground shield which covers the RF filter circuit. The shield is soldered to the top and bottom ground planes of the printed circuit board. At the opposite end of the printed circuit board is an output amplifier whose output is connected to a coax output lead. A coax ground shield engages the opposite end of the first printed circuit board in a perpendicular orientation so as to position the opposite end of the printed circuit board within the hollow interior. The reference oscillator for the down converter is mounted on a second printed circuit board which is spaced from the first printed circuit board and is oriented to have its bottom ground plane facing the bottom ground plane of the first printed circuit board.
REFERENCES:
patent: 3162858 (1964-12-01), Cutler
patent: 4290068 (1981-09-01), Bogner
patent: 4295143 (1981-10-01), Winegard et al.
patent: 4513293 (1985-04-01), Stephens
patent: 4595890 (1986-06-01), Cloutier
patent: 4791717 (1988-12-01), Hemmie
patent: 4811031 (1989-03-01), Maile et al.
patent: 4896163 (1990-01-01), Shibata et al.
patent: 5008956 (1991-04-01), Hemmie
patent: 5019833 (1991-05-01), Nonaka
patent: 5202699 (1993-04-01), Hemmie et al.
Hemmie Dale L.
Mills Marc D.
Brown Peter Toby
Conifer Corporation
Hille Rolf
LandOfFree
Integrated MMDS antenna and down converter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated MMDS antenna and down converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated MMDS antenna and down converter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-514819