Antenna system for receiving digital video broadcast signals

Communications: radio wave antennas – Antennas – With variable reactance for tuning antenna

Reexamination Certificate

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C343S702000

Reexamination Certificate

active

07667659

ABSTRACT:
An antenna system operative with a communications device for receiving a radio frequency signal, wherein the communications device produces a first control signal representing a frequency of a received signal. The antenna system comprises an antenna structure for receiving the radio frequency signal, the antenna structure comprising tunable elements for controlling a resonant frequency of the antenna structure; a decoder responsive to the first control signal for producing a second control signal and a switch matrix responsive to the second control signal for configuring one or more of the tunable elements to control the resonant frequency responsive to the frequency of the received signal.

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