Dual-frequency circularly polarized antenna for satellite...

Details Dual-frequency circularly polarized antenna for satellite... Dual-frequency circularly polarized antenna for satellite...

H - Electricity

01

Q

351/45, 351/57

H01Q 1/36 (2006.01) H01Q 5/00 (2006.01)

Patent

CA 1057392

DUAL-FREQUENCY CIRCULARLY POLARIZED ANTENNA FOR SATELLITE NAVIGATION AND RELATED PROBLEMS Abstract This disclosure deals with a novel dual-frequency circularly polarized antenna that is particularly adapted for receiving satellite transmissions and/or for transmitt- ing signals to satellites as for navigation purposes, the antenna being adapted through novel conductive preferably spiral-element configurations of different lengths, to pro- duce substantially omnidirectional horizontal coverage and substantially hemispherical vertical coverage at two or more operating frequencies.

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