Strip antenna with polarization control

Details Strip antenna with polarization control Strip antenna with polarization control

1982-04-26

1984-06-12

Lieberman, Eli

Communications: radio wave antennas

Antennas

Microstrip

343853, H01Q 138

Patent

active

044545142

ABSTRACT:
A linear polarization strip antenna which comprises a dielectric substrate whose backside is fitted with a conductive ground film, a power supply strip line which is formed of a conductive film and on the surface of the dielectric substrate, and a linear polarization radiation element. The strip line and radiation element are electromagnetically coupled together. A diode is connected between a top end of the strip line and a ground terminal. The top end of the strip line is selectively set at an open or grounded state according to the conductive state of the diode to vary the mode of electromagnetic coupling between the strip line and radiation element, thereby changing the direction in which the radiated electromagnetic wave is polarized.

REFERENCES:
patent: 3921177 (1975-11-01), Munson
patent: 4054874 (1977-10-01), Oltman
patent: 4191959 (1980-03-01), Kerr

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