Communications: radio wave antennas – Antennas – Microstrip
Patent
1980-08-05
1983-01-04
Lieberman, Eli
Communications: radio wave antennas
Antennas
Microstrip
H01Q 138
Patent
active
043674747
ABSTRACT:
An inexpensive, flush mounted microstrip antenna which is frequency agile d has polarization diversity. The frequency and polarization of the antenna can be selected by selecting the location of shorting posts in the antenna. The use of switching diodes in place of shorting posts provides the means of electronically switching the frequency and polarization characteristics of the antenna. Frequency-agility provides frequency scannable microstrip antenna arrays which also have polarization diversity. Frequency-agility, polarization diversity and frequency scannable arrays are controllable by digital means such as a computer.
REFERENCES:
patent: 3680136 (1972-07-01), Collings
patent: 4053895 (1977-10-01), Malagisi
patent: 4160976 (1979-07-01), Conroy
patent: 4170012 (1979-10-01), Kaloi
patent: 4259670 (1981-03-01), Schiavone
Farrar Frederick G.
Hayes Scott T.
Schaubert Daniel H.
Sindoris Arthur R.
Edelberg Nathan
Elbaum Saul
Gibson Robert P.
Lieberman Eli
The United States of America as represented by the Secretary of
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