N+1 transmission zeros in Nth-order cross-coupled filter with mixed source and load coupling (MSLC)

Author

Shen, Wei ; Yin, Wen-Yan ; Sun, Xiao-Wei ; Mao, Jun-Fa ; Zhou, Liang

Author_Institution

Center for Microwave & RF Technol., Shanghai Jiao Tong Univ., Shanghai, China

fYear

2009

fDate

7-10 Dec. 2009

Firstpage

2056

Lastpage

2059

Abstract

A new type of cross-coupled filters with mixed source and load coupling (MSLC) is presented in this study. Then, N+1 transmission zeros can be obtained in the Nth-order cross coupled geometry. An open-loop structure is further adopted to realize the MSLC in substrate integrated waveguide (SIW) filters. As an example, a third-order SIW cross-coupled filter with MSLC was designed, with good agreement obtained between its measured and the simulated S-parameters.

Keywords

S-parameters; substrate integrated waveguides; waveguide filters; N+1 transmission zeros; Nth-order cross-coupled filter; bandpass filter; mixed source and load coupling; open-loop structure; simulated S-parameters; substrate integrated waveguide filter; Coupling circuits; Electromagnetic coupling; Filtering theory; Frequency; Information filtering; Magnetic separation; Optical coupling; Optical filters; Optical resonators; Resonator filters; (SIW); S-parameters; bandpass filter; mixed source and load coupling; substrate integrated waveguide; transmission zeros;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2009. APMC 2009. Asia Pacific

Conference_Location

Singapore

Print_ISBN

978-1-4244-2801-4

Electronic_ISBN

978-1-4244-2802-1

Type

conf

DOI

10.1109/APMC.2009.5385270

Filename

5385270