Apparatus for tuning the antenna of a miniature personal communications device

摘要

PCT No. PCT/US87/00001 Sec. 371 Date Mar. 13, 1987 Sec. 102(e) Date Mar. 13, 1987 PCT Filed Jan. 2, 1987 PCT Pub. No. WO88/05213 PCT Pub. Date Jul. 14, 1988.An antenna tuning arrangement is provided for a miniature personal communications device which is normally worn on the body. The device includes a wristband having an antenna and antenna tuning elements which are normally concealed, to allow the antenna to be tuned while the device is being worn. A receiver in the communications device is coupled to the antenna and to a tuning indicator circuit which provides a tuning indication when the tuning element is adjusted without requiring entry into the device. The tuning indicator operation is selectable and draws no power when not selected.