A novel transmitter, which does not require the up-converter at the baseband stage, is presented. The main difference between proposed system and conventional one is the use of an alias harmonic component as high-IF (Intermediate Frequency) signal.In this paper, each alias harmonic components are examined by EVM (Error Vector Magnitude) and, the RF (Radio Frequency) front-end using the 3rd order alias harmonic component at 180 MHz as IF is demonstrated. The EVM performance of RF output at 2150 MHz resulted in less than 4 % in the case of 200 ksps (symbol per second).

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A novel transmitter, which does not require the up-converter at the baseband stage, is presented. The main difference between proposed system and conventional one is the use of an alias harmonic component as high-IF (Intermediate Frequency) signal.In this paper, each alias harmonic components are examined by EVM (Error Vector Magnitude) and, the RF (Radio Frequency) front-end using the 3rd order alias harmonic component at 180 MHz as IF is demonstrated. The EVM performance of RF output at 2150 MHz resulted in less than 4 % in the case of 200 ksps (symbol per second).