Tunable antenna

Details Tunable antenna Tunable antenna

2007-09-27

2009-11-17

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

With aircraft

C343S7000MS, C343S745000, C343S876000

Reexamination Certificate

active

07619574

ABSTRACT:
A tunable antenna comprises a conductor, a shunt inductance tuning element, a switch that controls the shunt inductance tuning element and the conductor, and a local ground connected to the shunt inductance tuning element. The switch is capable of activating the shunt inductance tuning element to change a frequency and bandwidth of the tunable antenna.

REFERENCES:
patent: 3475703 (1969-10-01), Kennedy et al.
patent: 4939525 (1990-07-01), Brunner
patent: 4973972 (1990-11-01), Huang

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