Title :
Microstrip dual-band bandpass filter based on the cul-de-sac topology
Author :
Corrales, Edén ; Menéndez, Oscar ; De Paco, Pedro ; Ramírez, Mónica ; Verdú, Jordi
Author_Institution :
Dept. of Telecommun. & Syst. Eng., Univ. Autonoma de Barcelona, Cerdanyola del Vallès, Spain
Abstract :
This paper presents a dual band filter implemented with microstrip open loop resonators using a cul-de-sac configuration covering the bands 1895-1960 MHz and 1995-2067 MHz. The undesired cross-couplings of its central core quartet of resonators are weak enough to not damage the overall filter response. The resulting filter offers a higher level of miniaturization by comparison with other extended dual-band topologies implemented with the same kind of resonators. The filter covers the desired passbands with insertion-losses lower than 1.8 dB and return-losses better than 10 dB.
Keywords :
band-pass filters; microstrip filters; resonators; cul-de-sac configuration; cul-de-sac topology; filter response; microstrip dual-band bandpass filter; microstrip open loop resonators;
Conference_Titel :
Microwave Conference (EuMC), 2010 European
Conference_Location :
Paris
Print_ISBN :
978-1-4244-7232-1