Antenna assembly for a wireless-communication device

Details Antenna assembly for a wireless-communication device Antenna assembly for a wireless-communication device

H - Electricity

01

Q

H01Q 1/10 (2006.01) H01Q 1/24 (2006.01) H01Q 1/36 (2006.01)

Patent

CA 2184878

A retractable antenna assembly (206; 900) provides a substantially matched antenna impedance to a matching circuit (712) of a radiotelephone (200) whether the retractable antenna assembly is in the extended position or the retracted position. In one embodiment parts (304,312) of a capacitor (714) are integrally formed on an upper portion of the retractable antenna assembly (206) such that when in the retracted position the capacitor (714) contributes to the overall antenna impedance. In another embodiment a capacitor (1302) is integrally formed on the lower portion of the retractable antenna assembly (900).

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