Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1995-12-06
1997-03-25
Gensler, Paul
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333137, 333 21R, 333122, H01P 516
Patent
active
056148747
ABSTRACT:
A monopulse comparator receives an incoming RF signal through a multimode antenna and splits it into a first-half signal that corresponds to the incoming RF signal as received by one half of the antenna and a second-half signal that corresponds to the incoming RF signal as received by the other half of the antenna. A folded magic tee selectively separates an unsymmetric mode component signal and a symmetric mode component signal from the first-half signal. In one embodiment, the unsymmetric mode component signal is the TE.sub.2,0 mode and the symmetric mode component signal is the TE.sub.1,0 mode. The energy of the TE.sub.2,0 mode signal is dependent on .DELTA.AZ information of the incoming RF signal relative to the antenna's boresight. The TE.sub.1,0 mode contains the .SIGMA. and .DELTA.EL signals. A second folded magic tee selectively separates the corresponding unsymmetrical and symmetrical mode component signals of the second-half signal. Waveguide-to-microstrip transition circuits transition the TE.sub.2,0 mode component signals from the two folded magic tees to provide the .DELTA.AZ signal to microstrip. A third magic tee, coupled to the two folded magic tees, separates the .DELTA.EL and .SIGMA. signals from the TE.sub.1,0 mode component signals. Two waveguide-to-microstrip transition circuits transition the .DELTA.EL and .SIGMA. signals from the third magic tee to microstrip. Each magic tee includes matching-probes to match the ports of the magic tee. Each matching-probe includes a hole that causes the magic tee to have a lower return loss in the magic tee's sum port.
REFERENCES:
patent: 3274604 (1966-09-01), Lewis
patent: 3670268 (1972-06-01), Connerney
patent: 3758880 (1973-09-01), Morz
patent: 3918011 (1975-11-01), Salzberg
patent: 4721959 (1988-01-01), Syrigos
patent: 5202648 (1993-04-01), McCandless
M/A-COM: "AK-10050 Slotted Array 35.0 GHz Antenna," Bulletin No. 1704.
ALPHA, "Miniaturized Millimeter Wave Monopulse Comparator Feed Assembly," Millimeter Wave Components & Subsystems, pp. 5-53.
Howard, D.D., "Single Aperture Monopulse Radar Multi-Mode Antenna Feed and Homing Device.".
Gensler Paul
The Boeing Company
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