Switch circuit and method therefor

Details Switch circuit and method therefor Switch circuit and method therefor

H - Electricity

04

B

H04B 1/48 (2006.01)

Patent

CA 2135799

2135799 9422531 PCTABS00033 A switch circuit for a cellular radiotelephone operable in a TDMA communication scheme. The switch circuit (206) is disposed upon a plurality of tandemly-positioned ceramic substrates having transmission lines (250) disposed upon one of the ceramic substrates. The switch circuit alternately connects transmitter circuitry (212) to an antenna (218) or receiver circuitry (224) to the antenna (218), thereby alternately to permit transmission or reception of signals generated by, or received by the radiotelephone. Because circuits disposed upon ceramic materials are of low insertion losses, the switch circuit (206) is advantageously utilized to form a portion of the radiotelephone.

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