Linearized Power Detector with 32-bit RISC Microprocessor for 2.45 GHz ISM Band

Abstract

Design procedure and experimental verification of linearized power detector, suitable for measurement purposes, are presented. Good linearity, fast response and wide dynamic range of the detector are achieved by using a zero-bias Schottky diode with 16-bit analog to digital converter and 60 MHz 32-bit RISC processor. Linearity error better than plusmn 2 % has been achieved in 40 dB dynamic range with 3 ms repetition time.