Global Matching of Multi-section Transmission Lines Based on the CCITL Theory

Author

Lamultree, Suthasinee ; Torrungrueng, Danai ; Phongcharoenpanich, Chuwong

Author_Institution

Fac. of Eng. & Res. Center for Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol., Bangkok

fYear

2007

fDate

11-14 Dec. 2007

Firstpage

1

Lastpage

4

Abstract

This paper presents a method for global matching of multi-section transmission lines (MSTLs) based on the theory of conjugately characteristic-impedance transmission lines (CCITLs). To provide some physical insights, examples of two and three sections of MSTLs are given for both passive (Re{Z₀ ⁺} ges 0) and active characteristic impedances (Re{Z₀ ⁺} < 0), where Z₀ ⁺ are the characteristic impedances of CCITLs. In addition, compared results of local and global matchings using both standard transmission line (STL) and CCITL theories are shown. It is found that the CCITL theory can be used to globally match MSTLs indeed without solving any optimization problems.

Keywords

impedance matching; transmission line theory; conjugately characteristic-impedance transmission line theory; global matching; multisection transmission lines; Impedance; Information technology; Microwave communication; Microwave technology; Microwave theory and techniques; Periodic structures; Power transmission lines; Propagation constant; Propagation losses; Transmission line theory; CCITLs; Global matching; Multi-section transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2007. APMC 2007. Asia-Pacific

Conference_Location

Bangkok

Print_ISBN

978-1-4244-0748-4

Electronic_ISBN

978-1-4244-0749-1

Type

conf

DOI

10.1109/APMC.2007.4554942

Filename

4554942