SHARP-REJECTION LOW-PASS FILTER WITH CONTROLLABLE TRANSMISSION ZERO USING COMPLEMENTARY SPLIT RING RESONATORS (CSRRS)

Abstract

A novel low-pass filter using complementary split ring resonators (CSRRs) for transmission zero control and sharp-rejection is presented. Three different CSRRs resonators cells are etched at the ground plane below a low impedance microstrip line for transmission zero control. A demonstration lowpass filter is designed, fabricated and measured. It agreed with the simulated results well.