Gorur, AKarpuz, CYalcin, KGorur, H2019-08-012019-08-0120010-7803-7138-0https://hdl.handle.net/11480/5757Asia/Pacific Microwave Conference -- DEC 03-06, 2001 -- TAIPEI, TAIWANWe propose a bandstop filter with a wider upper passband using microstrip open-loop resonators for modern communication systems. A microstrip open-loop resonator (MOLR) is discussed for maximum miniaturization in microwave applications and to obtain a wider upper stopband (or passband) including the first spurious resonance frequency for planar filters. The bandstop filter is designed and fabricated using a full-wave simulator. The measured filter performance shows a good agreement with the simulated response.eninfo:eu-repo/semantics/closedAccessConference Object5275302-s2.0-0035728786N/AWOS:000177768600125N/A