Patent Number: 6,529,088

Title: Closed loop antenna tuning system

Abstract: A tunable resonant system includes an electric element, and a core having a controllable parameter that determines the resonant frequency of the system. In order to tune the resonant system to a desired frequency, a low power, narrowband signal is applied at a selected frequency to the electric element. The reflected or transmitted power is measured and the value of the controllable parameter adjusted to vary the resonant frequency of the system in a closed loop until the reflected power is at a minimum.

Inventors: Lafleur; Philippe (Gloucester, CA), Roscoe; David (Kanata, CA)

Assignee: Vistar Telecommunications Inc.

International Classification: H01Q 23/00 (20060101); H01Q 9/04 (20060101); H03J 007/00 (); H04B 001/14 ()

Expiration Date: 03/04/2020