Title :
A Class of UWB microstrip bandpass filter using quasi-lumped element resonators with controllable stopbands
Author :
Ohno, Takanobu ; Ohno, Yuji ; Wada, Kouji ; Hashimoto, Osamu
Author_Institution :
Aoyama Gakuin Univ., Sagamihara
Abstract :
This paper presents an ultra- wideband (UWB) resonator and a bandpass filter (BPF) consisting of quasi- lumped elements using a microstrip line (MSL). First of all, a resonator using a high-impedance inductive line and a gap capacitor is examined by an electromagnetic simulator. The simulated results of the resonator show UWB bandpass characteristics with two controllable stop- bands by adjusting the element values and the length of the resonator. Secondly, an UWB-BPF using the presented resonator is proposed, fabricated, simulated and measured. It is confirmed that desired UWB bandpass characteristics are realized by controlling two stopband characteristics.
Keywords :
band-pass filters; microstrip filters; microstrip lines; resonators; ultra wideband technology; UWB microstrip bandpass filter; controllable stopbands; electromagnetic simulator; high-impedance inductive line; microstrip line; quasi-lumped element resonators; ultra- wideband resonator; Band pass filters; Capacitors; Delay; Electronic mail; Insertion loss; Microstrip filters; Microstrip resonators; Passband; Resonator filters; Ultra wideband technology; UWB-BPF; bandstop characteristics; gap capacitor; high-impedance inductive line; microstrip line; quasi-lumped element resonator;
Conference_Titel :
Microwave Conference, 2006. APMC 2006. Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-4-902339-08-6
Electronic_ISBN :
978-4-902339-11-6
DOI :
10.1109/APMC.2006.4429633
