Kelly Communications Group, Inc.

Brien J Denheyer

John David Terry

An antenna clip includes a U-shaped front end that slides into a slot on an edge of a printed circuit board (PCB). The PCB holds the clip rigidly in both a lateral direction and in a front to back parallel orientation with the PCB providing a reliable electrical contact between the antenna and the phone electrical circuitry. An antenna switching circuit switches between an internally connected antenna and an external system detachably coupled to an external connector. The antenna circuit has a wire length of .lambda./4 between the phone circuit and the antenna and a wire length of N.lambda./2 between the phone circuitry and the external system. The antenna then appears as an open circuit when coupled to ground through a diode. Alternatively, the external connector appears as an open circuit when disconnected from the external system.

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Portland, OR, United States of America

Brien J Denheyer