Communications: radio wave antennas – Antennas – With lumped reactance for loading antenna
Reexamination Certificate
2007-01-23
2007-01-23
Dinh, Trinh (Department: 2821)
Communications: radio wave antennas
Antennas
With lumped reactance for loading antenna
C343S7000MS
Reexamination Certificate
active
10877456
ABSTRACT:
An antenna for a wireless device may be kept dynamically tuned to a desired center frequency to compensate for detuning which may be caused by environmental influences. A sensor provides a feedback signal to a controller to select an appropriate capacitance value from a variable capacitor to tune the antenna for the wireless device. The variable capacitor may comprise a plurality of fixed capacitors and MEMS switches arranged in parallel or may comprise a variable MEMS capacitor having a fixed lower plate and a flexible upper plate.
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Hayden, III Joe
Kipnis Issy
Rao Valluri
Srinivasan Balakrishnan
Dinh Trinh
Mancuso Huedung
Reif Kevin A.
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