Novel dual-band hybrid coupler using improved simplified CRLH transmission line stubs

Author

Gong, Jian-Qiang ; Liang, Chang-Hong

Author_Institution

Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China

fYear

2010

fDate

8-11 May 2010

Firstpage

856

Lastpage

859

Abstract

In this paper, a novel dual-band hybrid coupler is designed by adopting improved simplified composite right-/left-handed (ISCRLH) transmission line (TL) stubs. An ISCRLH TL stub is composed of two ISCRLH TL unit cells with input and output uniform TL sections at the terminals, which can produce specified impedance and phase shift at two (arbitrary) different frequencies. The conditions for synthesizing the dual-band ISCRLH TL stub are discussed in detail, and then such a stub is applied to implement a novel dual-band hybrid coupler in microstrip configuration, simulated results of which reveal good performance and dual-band operation. The novel device is small, fully planar, and easily designed and fabricated.

Keywords

transmission lines; waveguide couplers; dual-band hybrid coupler; dual-band operation; microstrip configuration; simplified CRLH transmission line stub; simplified composite right-/left-handed transmission line stub; Capacitors; Chromium; Coupling circuits; Dual band; Frequency; Impedance; Inductors; Microwave technology; Shunt (electrical); Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5705-2

Type

conf

DOI

10.1109/ICMMT.2010.5525178

Filename

5525178