Electronic device having an rf circuit integrated into a...

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H - Electricity

04

B

H04B 1/40 (2006.01) H01Q 1/08 (2006.01) H01Q 1/22 (2006.01) H01Q 1/24 (2006.01) H04Q 7/32 (2006.01)

Patent

CA 2155388

When a radio frequency (RF) circuit is integrated into a movable housing element of an electronic device one must consider the affects of the surrounding area when the RF circuit is in a functioning position. A preferred embodiment is a radiotelephone (100) having an antenna (105) integrated into a movable housing element (101). The antenna (105) has two functioning positions, an opened and a closed position. The antenna (105) is tuned for efficiency when the movable housing element (101) is in the opened position. When the movable housing element (101) is in the closed position, a first pair of conductive plates (107, 109) located in the movable housing element (101) and a second conductive plate (113) located in the second housing element (103) are positioned to retune the antenna (105) due to the detuning affects caused by the close proximity of other electronic components located in the second housing element (103).

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