Memristor based adaptive impedance and frequency tuning network

Abstract

Memristors have been recently proposed as an alternative solution to incorporate switched behavior along with traditional CMOS circuits. Furthermore, with the advent of technology, adaptive impedance and frequency tuning is essential in communication devices. To enable both tuning, a matching network based on switchable capacitors with fixed inductors is proposed in this paper. Here, switching is done by means of memristive switches. This paper analyzes the working of memristor as a switch and a matching network based on memristors which adaptively tunes with impedance and frequency. With 3 capacitor banks of each 0.5 pF resolution and 2 fixed inductors, matching for antenna impedance ranging from 20 to 200 Ohms and for frequencies ranging from 0.9 to 3.2 GHz is reported.