An alternative approach in deriving associated circle equations for microwave transistor amplifiers

Author

Silapunt, R. ; Torrungrueng, D.

Author_Institution

Dept. of Electron. & Telecommun., King Mongkut´´s Univ. of Technol. Thonburi Bangkok, Bangkok

Volume

1

fYear

2008

fDate

14-17 May 2008

Firstpage

233

Lastpage

236

Abstract

The bilinear transformation is employed in deriving associated circle equations for microwave transistor amplifiers in the conjugately characteristic-impedance transmission line (CCITL) system. This approach is engaged in transforming stability, operating and available power gains, voltage standing wave ratio (VSWR), and noise circles located in the reflection-coefficient plane (Gamma-plane) in the Z₀ system into the corresponding ones in the CCITL system at any argument phi, which is the argument of the CCITL characteristic impedances. Its validity is verified by comparing with result of the characteristic conductance (CC) approach. Its convenience over the CC approach is realized.

Keywords

microwave amplifiers; microwave transistors; bilinear transformation; circle equations; conjugately characteristic-impedance transmission line; microwave transistor amplifiers; voltage standing wave ratio; Equations; Impedance; Microwave amplifiers; Microwave technology; Microwave transistors; Power transmission lines; Radiofrequency interference; Stability; Transmission line theory; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2008. ECTI-CON 2008. 5th International Conference on

Conference_Location

Krabi

Print_ISBN

978-1-4244-2101-5

Electronic_ISBN

978-1-4244-2102-2

Type

conf

DOI

10.1109/ECTICON.2008.4600415

Filename

4600415