Diversity antenna circuitry in a digital mobile telephone

Details Diversity antenna circuitry in a digital mobile telephone Diversity antenna circuitry in a digital mobile telephone

H - Electricity

01

Q

351/58, 351/7

H01Q 21/10 (2006.01) H01Q 1/32 (2006.01) H01Q 23/00 (2006.01) H01Q 25/00 (2006.01) H04B 1/18 (2006.01) H04B 7/08 (2006.01)

Patent

CA 2034044

The invention relates to a circuitry by means of which it is possible to switch to a mobile telephone that antenna out of two or mare antennae which has the best signal, without substantial alterations in the mobile telephone itself. According to the invention, the antennae (A, B), the antenna selection switch (2) and the peripheral circuits (5, 6) connected to it constitute an integrated part which is separate from the actual mobile telephone (1) but can be coupled to it by means of an antenna cable (3), and the antenna cable (3) is coupled to the radio part of the mobile telephone (1) by mediation of a signal combining circuit (4) which transfers to the antenna cable (3) the supply voltage (V) and the antenna selection switch (2) control pulse, and transfers and selects the RF signal.

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