Title :
Design and modeling of low-loss symmetric slow-wave transmission lines
Author :
Amin Kianinejad;Zhi Ning Chen;Cheng-Wei Qiu
Author_Institution :
Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Republic of Singapore
Abstract :
This paper theoretically models and experimentally verifies a low-loss spoof surface plasmon (SSP) mode-based transmission line. A circuit model is proposed for a symmetric SSP structure and the dispersion curve, cut off frequency and Bloch impedance of the periodic structure are calculated. A compact mode converter is proposed and verified experimentally for the connection to coplanar waveguides (CPWs) to form a low-loss slow-wave transmission line (SW-TL). The proposed design is compared with a conventional transmission line and its excellent performance is experimentally evidenced. Operating as a low loss TL, the SW-TL is ready for possible MMIC applications, taking advantage of its ultrathin planarity, highly confined fields, and flexible structure.
Keywords :
"Integrated circuit modeling","Coplanar waveguides","Plasmons","Surface waves","Periodic structures","Optical surface waves","Equivalent circuits"
Conference_Titel :
Microwave Conference (APMC), 2015 Asia-Pacific
Print_ISBN :
978-1-4799-8765-8
DOI :
10.1109/APMC.2015.7413234
