Title :
Design of microwave lossy filter based on hybrid structure
Author :
Qiuyi Wu;Mingzhong Lin;Xiaomin Zhao;Xiaowei Shi
Author_Institution :
Science and Technology on Antenna and Microwave Laboratory, Xidian University, Xi´an, Shaanxi, 710071, China
Abstract :
A novel design of lossy bandpass filter based on planar hybrid configuration is proposed in this paper. Nonuniform Q distribution is realized by Substrate Integrated Waveguide mixed with microstrip resonator. Impact of Q distribution on the passband and individual response of the two transmission paths is presented. The fabricated filter has a frequency of 1.984 GHz with a 1-dB bandwidth of 25 MHz (1.26% fractional bandwidth). Finally, the proposed filter is designed, fabricated and measured for experimental verification of the predicted results. The simulated and measured results show good agreement.
Keywords :
"Microwave theory and techniques","Band-pass filters","Resonator filters","Bandwidth","Hafnium","Wireless communication","Substrates"
Conference_Titel :
Microwave Conference (APMC), 2015 Asia-Pacific
Print_ISBN :
978-1-4799-8765-8
DOI :
10.1109/APMC.2015.7412970
