Communications: radio wave antennas – Antennas – Wave guide type
Reexamination Certificate
2005-03-15
2005-03-15
Wimer, Michael C. (Department: 2821)
Communications: radio wave antennas
Antennas
Wave guide type
Reexamination Certificate
active
06867744
ABSTRACT:
A family of FE dielectric-tuned antennas and a method for frequency tuning a wireless communications antenna are provided. The method comprises: forming a radiator; forming a dielectric with ferroelectric material proximate to the radiator; applying a voltage to the ferroelectric material; in response to applying the voltage, generating a dielectric constant; and, in response to the dielectric constant, communicating electromagnetic fields at a resonant frequency. Some aspects of the method further comprise: varying the applied voltage; and, modifying the resonant frequency in response to changes in the applied voltage. Modifying the resonant frequency includes forming an antenna with a variable operating frequency responsive to the applied voltage. Alternately stated, forming an antenna with a variable operating frequency includes forming an antenna with a predetermined fixed characteristic impedance, independent of the resonant frequency.
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International Search
Toncich Stanley
Tran Allen
Kyocera Wireless Corp.
Wimer Michael C.
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