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Design of time delay lines with periodic microstrip line and composite right/left‐handed transmission line
Author(s) -
Zhang Jun,
Zhu Qi,
Jiang Qi,
Xu Shanjia
Publication year - 2009
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.24409
Subject(s) - microstrip , transmission line , microwave , electric power transmission , group delay and phase delay , left handed , line (geometry) , electronic engineering , engineering , composite number , electrical engineering , computer science , topology (electrical circuits) , physics , telecommunications , optics , mathematics , bandwidth (computing) , geometry , algorithm
Abstract Time delay lines based on periodic microstrip lines (PMLs) and composite right/left‐handed transmission lines (CRLH‐TLs) are proposed. Compared with ordinary microstrip lines, PMLs are more suitable to realize tiny time delays because of their slow‐wave characteristics. Meanwhile, CRLH‐TLs are chosen to realize large time delays due to their large and easy designable phase constant. Finally, a 9‐bit time delay module is designed and fabricated as an example. It is shown that the present time delay module possesses the advantages of compactness, low‐loss, precise, and easy fabrication. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1679–1682, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24409