Title :
Novel Compact Quarter-Wavelength Resonator Filter Using Lumped Coupling Elements
Author :
Mao, Rui-Jie ; Tang, Xiao-Hong ; Xiao, Fei
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
A novel compact quarter-wavelength resonator filter using the lumped coupling elements is presented in this letter. The filter not only has controllable transmission zeros near its passband, but also features compact circuit size. Based on the equivalent circuit model, a bandpass filter with the center frequency of 1.85 GHz has been designed and fabricated. Measured results have validated the theoretical analysis well
Keywords :
UHF filters; band-pass filters; equivalent circuits; microstrip filters; resonator filters; 1.85 GHz; bandpass filter; controllable transmission zeros; equivalent circuit model; lumped coupling elements; microstrip filter; pass band; quarter wavelength resonator filter; Band pass filters; Capacitors; Coupling circuits; Distributed parameter circuits; Equivalent circuits; Frequency; Inductors; Magnetic separation; Resonator filters; Transmission line theory; Bandpass filter (BPF); lumped element; microstrip filter; quarter-wavelength resonator;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.890332
