Left-Handed/Right-Handed Transmission Line Subwavelength Cavity Resonators

Author

Liao, Shaowei ; Xu, Jianhua ; Wan, Feng ; Wang, Wenxiang ; Gong, Yubing

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu

Volume

8

fYear

2009

fDate

7/1/1905 12:00:00 AM

Firstpage

80

Lastpage

83

Abstract

In this letter, a new kind of cavity resonator based on left-handed/right-handed transmission lines is presented. The left-handed transmission line (LHTL), which can realize a negative phase shift, is formed by resonant-slot coupled cavity chain unit cells, while the right-handed transmission line (RHTL), which can realize positive phase shift, is made of coaxial waveguides. Resonance condition can be satisfied by setting the total phase shift between two ends of the cavity resonators to be zero. The design approach of the subwavelength cavity resonator is presented. Simulation and experimental results prove that the lengths of these cavity resonators can be much shorter than the conventional half-wavelength while working at the same frequency.

Keywords

cavity resonators; coaxial waveguides; transmission lines; coaxial waveguides; negative phase shift; resonance condition; resonant-slot coupled cavity chain; subwavelength cavity resonators; transmission line; Cavity resonator; left-handed transmission line (LHTL); resonant-slot coupled cavity chain;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2008.2011819

Filename

4732139