A wideband time-delay line inspired by CRLH TL unit cell

Author

Zhang, J. ; Cheung, S.W. ; Yuk, T.I.

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China

fYear

2010

fDate

20-22 Oct. 2010

Firstpage

241

Lastpage

244

Abstract

This paper presents the design of ultra-wideband time-delay lines in microwave frequency inspired by the composite right/left-handed transmission line (CRLH TL) unit cell. A rotated version of the conventional CRLH TL unit cell is used to achieve an ultrawide bandwidth. For comparison, the time-delay lines using the conventional CRLH TL unit cells, right-handed transmission line (RH TL) and periodic microstrip line (PML) are also designed, optimized and fabricated. Simulation and measurement results show that, for the same length of 60 mm, our proposed time-delay line has an ultrawide bandwidth and much longer time delay than those of the RH TL and PML ones. It also has the advantages of high return loss and low insertion loss.

Keywords

delay lines; metamaterials; microstrip lines; transmission lines; composite right-left-handed transmission line; insertion loss; periodic microstrip line; return loss; wideband time-delay line; Bandwidth; Delay effects; Fingers; Frequency measurement; Loss measurement; Power transmission lines; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Technologies for Communications (ATC), 2010 International Conference on

Conference_Location

Ho Chi Minh City

Print_ISBN

978-1-4244-8875-9

Type

conf

DOI

10.1109/ATC.2010.5672734

Filename

5672734