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Ultra-wideband time-delay line inspired by composite right/left-handed transmission line unit cell

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3 Author(s)
Zhang, J. ; Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China ; Cheung, S.W. ; Yuk, T.I.

This paper presents a design of ultra-wideband time-delay line 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 increase the operating bandwidth. The time-delay line is optimized using computer simulation and then fabricated on a PCB for measurement. For comparison, the time-delay lines using the 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 a much longer time delay of 2000 ps with high return loss and low insertion loss.

Published in:

Ultra-Wideband (ICUWB), 2010 IEEE International Conference on  (Volume:2 )

Date of Conference:

20-23 Sept. 2010

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