Importance

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Abstract

An antenna for use with low-band, mid-band and high-band signals, including a coaxial member, a low-band and mid-band signal input connected between one end of the coaxial member outside conductor and the device chassis ground, and a high-band signal input connected between one end of the coaxial member outside conductor and the corresponding end of the coaxial member inside conductor. A first isolation filter adapted to block low-band and mid-band signals from the coaxial member is between the coaxial member and the high-band signal input. A parallel resonant circuit is at the other end of the coaxial member outside conductor and a solid conductor is connected to the parallel resonant circuit and to the other end of the coaxial member inner conductor. The low-band signal input is disconnected from high-band signals by, for example, an RF switch or a second isolation filter between the coaxial member and the low-band signal input.

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First Claim