Title :
A dual-band balun using coupled stepped-impedance coupled line resonators
Author :
Gao, Xin ; Yeung, Lap K. ; Wu, Ke-Li
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Hong Kong
Abstract :
In this paper, a novel dual-band balun using a pair of partially coupled stepped-impedance coupled lines is proposed. Design equations for the balun are derived by an even- and odd- mode approach. A prototype of such dual-band balun operating at 900 MHz and 1.8 GHz is designed, fabricated and measured. Good agreement between designed and measured responses proves the proposed concept and validates the design formulae.
Keywords :
UHF circuits; baluns; cavity resonators; coupled circuits; network synthesis; coupled stepped- impedance coupled line resonators; design equations; dual band balun; even and odd mode approach; frequency 1.8 GHz; frequency 900 MHz; Design engineering; Dual band; Equations; Impedance matching; Power transmission lines; Prototypes; Radio frequency; Resonant frequency; Resonator filters; Transmission line theory;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1879-4
Electronic_ISBN :
978-1-4244-1880-0
DOI :
10.1109/ICMMT.2008.4540294
