DUAL BAND RF POWER AMPLIFIERS
Original Publication Date: 1998-Mar-01
Included in the Prior Art Database: 2002-Jun-26
Most of the wireless transceivers existing today operate for one standard e.g. GSM, CDMA, NADC and in one RF frequency band. The need for dual band radios is rising and is bringing a new challenge to the RF portion of the radio and more specifically to the RF power amplifier. This amplifier operates in 2 narrow bandwidths separated by an octave or more, e.g. 900MHz and 1800 MHz for GSM and PCN or 835MHz and 1900 MHz for CDMA in US. This paper describes a low cost and simple method of achieving dual band RF power amplifiers.