Appeal No. 96-0418
Application 08/051,321
through 11, 15, 16, 19 and 21. Claim 13 has been cancelled
and other claims have been indicated as allowable.
The disclosed invention is concerned with the optimum
tuning of a high Q antenna having a length and width each
significantly less than a quarter wavelength within a
predetermined frequency range. A controllable reactive
element is coupled to the antenna and is controlled by a
tuning circuit, which in turn is responsive to the difference
between the desired level of the signal and the signal
transduced by the antenna. The antenna and the reactive
element typically comprise a circuit having a Q greater than
100 [specification, page 2, lines 5 to 7].
Representative claim 1 is reproduced as follows:
1. A tunable antenna system for operation over a
predetermined frequency range comprising,
a high Q antenna having a length and width each
significantly and much less than a quarter wavelength within
said predetermined frequency range,
a controllable reactive element coupled to said antenna
having a variable reactance for tuning said antenna in a high
Q resonant circuit to the frequency of a desired signal in
said frequency range, and
an antenna-tuning circuit having a detector for providing
2
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Last modified: November 3, 2007