2020-07-05
A Compact Phase Shifter with Wide Phase Range Using Loaded Transmission Line
By
Progress In Electromagnetics Research Letters, Vol. 92, 109-116, 2020
Abstract
This paper presents a 90° broadband compact phase shifter which employs loade λ/2 transmission line. By adding an H shaped open stub loaded transmission line, the bandwidth of the phase shifter is broadened. Detailed theoretical analysis and circuit configuration are presented to explain the mechanism. The proposed phase shifter is fabricated and measured to validate the design principle. The simulated and measured results show that the proposed phase shifter achieves 6.6 to 19.4 GHz bandwidth with low phase instability ±5°, very low insertion loss (0.3 dB in 7.5-15.2GHz), high return loss (10 dB), and a compact size (5.8cm*6.1cm). Good agreements are observed between the measured and simulated results with small phase deviation. Moreover, the configuration of the proposed phase shifter is simple in both design and fabrication which makes the design suitable for actual applications.
Citation
Ting Wu, Juan Chen, and Peng-Fei Wu, "A Compact Phase Shifter with Wide Phase Range Using Loaded Transmission Line," Progress In Electromagnetics Research Letters, Vol. 92, 109-116, 2020.
doi:10.2528/PIERL20052002
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