Communications: directive radio wave systems and devices (e.g. – Directive – Including polarized signal communication transmitter or...
Patent
1983-10-28
1988-04-12
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including polarized signal communication transmitter or...
343700MS, 343365, 342365, H01Q 2106, H01Q 2124, H04B 710
Patent
active
047377933
ABSTRACT:
A controllable dual input/output port power divider coupled with a controllable phase shifter feed a dual ported dual polarized microstrip antenna structure. By controlling the power divider and phase shifter, arbitrary orthogonal polarization (e.g., linear, circular or elliptical) radiated r.f. fields are obtained. Virtually the entire structure comprising the dual port power divider, phase shifter and microstrip radiator may be formed of shaped photo-chemically etched microstrip conductors disposed a very short distance (e.g., less than one-tenth wavelength) above a conductive reference surface.
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"Diode Phase Shifters for Array Antennas," by Joseph F. White, 1974; IEEE Transactions on Microwave Theory and Techniques, vol. MTT-22, No. 6, pp. 2-20.
"Broadband Diode Phase Shifters," by Robert V. Garver, 1971, HDL-TR-1562; Harry Diamond Laboratories, pp. 3-29.
Munson Robert E.
Sreenivasiah Ippalapalli
Alberding Gilbert E.
Ball Corporation
Blum Theodore M.
Sotomayor John B.
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