Antenna adapter assembly for portable cellular telephone

摘要

An adapter assembly is provided for adapting a portable cellular telephone to receive an external replacement antenna or an external direct feed connection by replacing the internal antenna connection of the cellular telephone. The adapter assembly includes a body portion with an antenna-receiving bore, a telephone chassis contact portion at the other end a circuit board interposed between the body and contact portion which spaces them apart and interconnects them together. The circuit board has circuitry thereon which transposes the connections effected thereby between coaxial conductors of the assembly body and contact portions.