DocumentCode :
2268161
Title :
A novel microstrip bandpass filter using lumped resistor-loaded configuration
Author :
Chen, H. ; Zhao, Z.-Q. ; Zhang, Y.-X. ; Wu, Y.-H. ; Yang, Y.-M.
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fYear :
2010
fDate :
28-30 July 2010
Firstpage :
696
Lastpage :
698
Abstract :
A new bandpass filter (BPF) with a good frequency selectivity using lumped resistor-loaded element is proposed. The filter is composed of a parallel-coupled line shunted with a folded open-ended stub and a coupled line loaded with lumped resistor. The proposed filter has been designed, simulated, optimized for wireless communication system, and the obtained frequency responses have demonstrated a good filtering properties including -3 dB fractional bandwidth (FBW) of 11.2% at the central frequency 8.9 GHz, the maximum insertion loss less than 0.8 dB and the minimum return loss more than 15 dB within the passband frequency range, and two transmission zeros close to the lower passband edge and three transmission zeros close to the upper passband edge. The filter exhibits an excellent band-pass property and a high attenuation characteristics nearby the lower and upper stopband. Thus, a high selectivity of the proposed filter is achieved.
Keywords :
band-pass filters; coupled circuits; microstrip filters; resistors; band-pass property; folded open-ended stub; frequency selectivity; lumped resistor-loaded configuration; microstrip bandpass filter; parallel-coupled line; Educational institutions; Fractals; Microwave FET integrated circuits; Microwave integrated circuits; Microwave theory and techniques; Moment methods; Radio access networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, Circuits and Systems (ICCCAS), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8224-5
Type :
conf
DOI :
10.1109/ICCCAS.2010.5581916
Filename :
5581916
Link To Document :
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