Communications: directive radio wave systems and devices (e.g. – With particular circuit
Patent
1997-03-21
1999-04-20
Barron, Jr., Gilberto
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
342 70, 342128, G01S 735
Patent
active
058961046
ABSTRACT:
An FM radar system of more simple construction, smaller size, lower cost and improved performance is provided in which circulators of any type in the prior art are eliminated by constructing a transceiver comprised of a transmitting part and a receiving part, each formed on a common dielectric plate and having a dedicated transmitting antenna and a dedicated receiving antenna respectively. The antennas comprise planar array antennas, in contrast to the solid antennas used in prior art systems. The planar array antennas are also formed on the single dielectric plate. The transmitting part comprises a plurality of transmission antennas and a plurality of frequency multipliers coupled to said transmission antennas. The receiving part comprises a plurality of receiving antennas which are coupled to a plurality of switches through a plurality of mixers, frequency multipliers, and low noise amplifiers.
REFERENCES:
patent: 5008678 (1991-04-01), Herman
patent: 5181037 (1993-01-01), Komatsu
Komatsu Satoru
Kudo Hiroshi
Barron Jr. Gilberto
Honda Giken Kogyo Kabushiki Kaisha
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