Title :
Compact microstrip pseudo-interdigital stepped impedance bandpass filters with improved stopband performance
Author :
Iyev, Damir Zayn ; Budimir, D.
Author_Institution :
Wireless Commun. Res. Group, Univ. of Westminster, London, UK
Abstract :
In this paper we present design of a compact microstrip pseudo-interdigital stepped impedance bandpass filter with improved stopband performance. Stepped-impedance resonators are used to maximise the ratio between higher order and fundamental resonances. The improved stopband performance is realized using additional spur line and open-stub sections used for creation of transmission zeros. Total size of the filter is 30.1times7.2 mm. The stopband extension up to 5.7f0 has been achieved.
Keywords :
band-pass filters; band-stop filters; microstrip filters; resonator filters; compact microstrip bandpass filter; open-stub; pseudo-interdigital stepped impedance bandpass filter; spur line; stepped-impedance resonator; Band pass filters; Circuits; Filtering theory; Frequency; Impedance; Manufacturing; Microstrip filters; Microwave filters; Resonance; Resonator filters;
Conference_Titel :
Wireless and Microwave Technology Conference, 2009. WAMICON '09. IEEE 10th Annual
Conference_Location :
Clearwater, FL
Print_ISBN :
978-1-4244-4564-6
Electronic_ISBN :
978-1-4244-4565-3
DOI :
10.1109/WAMICON.2009.5207288
