ABSTRACT
A half- mode substrate integrated waveguide (HMSIW)band pass filter is presented. Split ring resonator (SRR) introduced as a series element provides the required bandpass while edge coupled SRRs produce well defined transmission zeros on either side of the passband. The filter is analysed using the LC equivalent circuit and also using the surface current distribution for better understanding of its behavior. The simulated values of the insertion loss and return loss are 1 dB and 30 dB respectively. Slight deviation is observed in the measured values due to fabrication errors.
