Telecommunications – Receiver or analog modulated signal frequency converter – With wave collector
Patent
1994-06-29
2000-10-10
Le, Thanh Cong
Telecommunications
Receiver or analog modulated signal frequency converter
With wave collector
4552771, 455101, H04B 138
Patent
active
061310220
ABSTRACT:
In one aspect of the present invention, a transceiver includes a pair of antennas with one of the receive channels including a predetermined phase shifter for shifting one of the received signals prior to combining the received electromagnetic energy to form a combined signal for processing by a receiver. The amount of phase shift may be set to maximize the combined signal. The transceiver accounts for signal fading resulting from multiple path reflection, and is especially beneficial in a hand-held or mobile unit. In another aspect, an antenna system includes a pair of elongated quadrifilar antennas, which may be disposed so as to have their longitudinal axes parallel or coincidental as desired. A method for maximizing receipt of electromagnetic energy is also described along with a detector useful for determining the presence of information associated with electromagnetic energy.
REFERENCES:
patent: 2786133 (1957-03-01), Dyke
patent: 2951152 (1958-02-01), Sichak et al.
patent: 5345603 (1994-09-01), Laffont
Dr. C.C. Kilqus; Spacecraft and Ground Station Applications of the Resonant Quadrifilar Helix; 1974 IEEE International Conference; pp. 75-77.
C.C. Kilgus; Resonant Quadrifilar Helix Design; The Microwave Journal, Dec. 1970; pp. 49-54.
Benalla Abdelaziz
Berkebile Jacqueline Jan
Jacomb-Hood Anthony Wykeham
Cong Le Thanh
Martin Marietta Corporation
LandOfFree
Transceiver and antenna system for communication with remote sta does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transceiver and antenna system for communication with remote sta, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transceiver and antenna system for communication with remote sta will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2262999