Abstract: Apparatus is provided for transmitting signals between a cell phone (P), through a coaxial cable (16) through a window inner coupling (20) mounted on the inner side (I) of a window, to an outer coupling (22) on the outer side (O) of the window which connects to an antenna (24), which efficiently couples signals of both the lower cell phone frequency band of about 850 MHz and the high cell phone frequency band of about 1920 MHz that are in current use. The window coupling includes an electrically conductive inner plate (30) lying substantially facewise adjacent to the window and a conductive box device (40) lying around the inner face of the inner plate. The inner plate is of substantially rectangular shape, with a plurality of sides (111-114) extending in series around the inner plate.

Abstract: Apparatus is provided for coupling to a hand-held transceiver such as a cellular phone that is being operated in a radio frequency-shielded environment such as in an automobile, to transfer energy between the transceiver and an auxiliary antenna that is not shielded from the surroundings. The apparatus includes a pair of capacitor coupling elements (30, 32) that are positioned adjacent to each of the two radiating elements (40, 54) of the hand-held transceiver, and a coaxial cable (20) that connects the coupling elements to the auxiliary antenna. Each coupling element includes a sheet of electrically conductive material lying adjacent to a corresponding radiating element of the transceiver without surrounding the transceiver.