Compact dual-band ISCRLH TL based hybrid couplers with arbitrary power division ratios

Author

Gong, Jian-Qiang ; Jiang, Jun-Bo ; Liang, Chang-Hong ; Wu, Bian

Author_Institution

Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xian, China

Volume

4

fYear

2012

fDate

5-8 May 2012

Firstpage

1

Lastpage

3

Abstract

In this paper, the design methodology for constructing novel dual-band hybrid couplers with arbitrary power division ratios is presented. The improved simplified composite right-/left-handed (ISCRLH) transmission line (TL) stub is adopted to imitate the conventional 90° section at the two specified frequencies with different characteristic impedances. An ISCRLH TL stub comprises two ISCRLH TL unit cells with input and output uniform TL sections at the two-port terminals, which possesses a degree of freedom in design parameters to assure the size miniaturization and the element realizability. Hybrid couplers operative at 2.45/5.2 GHz with various power division ratios are designed, verifying the proposed design methodology.

Keywords

UHF couplers; transmission lines; ISCRLH TL unit cells; arbitrary power division ratios; characteristic impedances; compact dual-band ISCRLH TL based hybrid couplers; composite right-left-handed transmission line stub; degree of freedom; frequency 2.45 GHz; frequency 5.2 GHz; size miniaturization; two-port terminals; Bandwidth; Couplers; Dual band; Hybrid power systems; Impedance; Microwave circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4673-2184-6

Type

conf

DOI

10.1109/ICMMT.2012.6230335

Filename

6230335