Designing cylindrical filtering circuits with the unconditionally stable ADI-FDTD method

Author

Yuan, Chenghao ; Chen, Zhizhang David

Author_Institution

Found. for Res. on Inf. Technol. in Soc., Zurich, Switzerland

fYear

2004

fDate

1-4 Nov. 2004

Firstpage

36

Lastpage

39

Abstract

As cylindrical structures, such as coaxial lines, are often used in RF or microwave systems, circuits constructed in a cylindrical form can become very attractive. A novel cylindrical planar filter is introduced and designed with the newly developed cylindrical ADI-FDTD (alternate-direction-implicit FDTD) method. It is shown that the proposed design, which can be connected easily with other cylindrical circuit structures, has better performance than its rectangular planar counterpart. It is also demonstrated that the ADI-FDTD can be applied effectively to the design of cylindrical circuit structures.

Keywords

finite difference time-domain analysis; low-pass filters; microstrip filters; microwave filters; RF systems; alternate-direction-implicit FDTD method; antenna feed lines; coaxial lines; cylindrical filtering circuits; cylindrical microstrip filter; cylindrical transmission lines; low pass filter; microwave systems; unconditionally stable ADI-FDTD method; Antenna feeds; Circuit simulation; Coaxial components; Filtering; Finite difference methods; Microstrip antennas; Microwave circuits; Microwave devices; Microwave filters; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Electromagnetics and Its Applications, 2004. Proceedings. ICCEA 2004. 2004 3rd International Conference on

Print_ISBN

0-7803-8562-4

Type

conf

DOI

10.1109/ICCEA.2004.1459283

Filename

1459283