Implementation of 8 Channels Phase Conjugation on FPGA for Microwave Power Transmission

This paper presents a phase conjugation (PC) system for 8 channels microwave power transmission (MPT) application, operating at the frequency band 2.45 GHz, using a field programmable gate array (FPGA) and high-speed analog to digital converter (ADC) and digital to analog converter (DAC). PC algorithm is implemented using some digital logics on the FPGA and a small size buffer is used for data acquisition. In addition, in order to operate the MPT system at 2.45 GHz, an appropriate frequency planning of ADC and DAC is proposed. Typical type of patch antennas is used to verify the implemented system and from the measurement results, it works well as the MPT application.