Patent ID: 7292822
Filing Date: 2007-11-06
Classification: G01S,H03H

Abstract:
1. A mobile communication device having a wireless communication system, the wireless communication system comprising: a first interdigital transducer configured to produce a surface acoustic wave (SAW) output that includes frequency components at a fundamental frequency and a plurality of harmonic frequencies when excited with an electrical input signal; the first interdigital transducer being further configured to produce an electrical output signal when excited by a SAW input at the fundamental frequency or one or more of the plurality of harmonic frequencies; a second interdigital transducer positioned adjacent to the first interdigital transducer and switchably connected to an antenna; wherein the second interdigital transducer is configured to operate at one of the harmonic frequencies; and a third interdigital transducer positioned adjacent to the first interdigital transducer and switchably connected to the antenna; wherein the third interdigital transducer is configured to operate at one of the harmonic frequencies.