Title :
The suspended stripline BPF of cross coupling design using quasi-lumped approach
Author :
Chen, Po-Fan ; Ho, Min-Hua ; Hong, Wanchu
Author_Institution :
Grad. Inst. of Commun. Eng., Nat. Changhua Univ. of Educ., Changhua, Taiwan
Abstract :
In this paper, quasi-lumped design of a BPF using the suspended stripline (SSL) is demonstrated. The proposed SSL BPF has achieved the benefits of size compactness, extremely low insertion losses, low dispersion, high operation frequency, and sometimes the wide stopband bandwidth. A cross-coupling structure is introduced in filter between the I/O to create transmission zeros by the passband for the signal selectivity enhancement. The proposed SSL filter is analyzed by the derived equivalent circuit model based on lumped elements approach. The plotted curves of calculated data obtained from equivalent circuit models and those from the commercial electromagnetic software vs. the dimensions of the SSL filter are given in the figures. Experiment is conducted to verify the filter´s performance.
Keywords :
band-pass filters; equivalent circuits; lumped parameter networks; strip line filters; cross coupling design; equivalent circuit; lumped element; quasilumped approach; suspended strip line filter; suspended stripline band-pass filter; Band pass filters; Filtering theory; Integrated circuit modeling; Microwave circuits; Microwave filters; Resonator filters; Quasi-lumped element; cross coupling; filter; suspended stripline;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2