Simulation and Fabrication of Broadband Tunable Phase Shifter Based on Transmission Line Metamaterial

S. Sheng, H. X. Chen, J. Wen, H. R. Liu
2019 Radioengineering  
This paper presents a kind of broadband, lowloss tunable phase shifter based on transmission line metamaterial. An inherent high-pass backward-wave response property of a left-handed metamaterial based on coplanar waveguide (CPW) transmission line was used to realize a microwave phase shifter. The commercial software Ansoft HFSS was used to design and analyze for the transmission line metamaterial phase shifter structure, and the resulting S-parameters were used to characterize its performance.
more » ... A transmission line metamaterial phase shifter was fabricated on Copper-Clad Board. The designed four unit-cells phase shifter provides a 0-190° continuous phase shift at 7.2 GHz using varactors biased from 0 V to 6 V with relatively low insertion loss.
doi:10.13164/re.2019.0585 fatcat:6hziz7mqmncdld7t6qguzd4z7e