標題: Reconfigurable 1.5-2.5-GHz Phase Shifter with 360 degrees Relative Phase-Shift Range and Reduced Insertion-Loss Variation
作者: Chi, Pei-Ling
Huang, Chia-Ling
交大名義發表
National Chiao Tung University
關鍵字: Insertion-loss variation;phase shifter;reconfigurable;reflection-type;relative phase shift;varactor
公開日期: 1-一月-2017
摘要: This paper proposes a varactor-based reflection-type phase shifter that allows for 360 degrees relative phase-shift range and reduced insertion-loss variation over the entire frequency tuning range. In particular, a novel and compact reconfigurable 90 degrees coupler is devised and it is, theoretically, able to achieve perfect return loss and isolation at each tuning state. Thus, when this 3-dB coupler is terminated with two reflective loads, the phase shifter can operate at a wide range of center frequencies. Moreover, a tunable transformation network is proposed to optimally reduce the insertion-loss variation within the 360 degrees continuous phase-shift range for any operational frequency. Experimental results show that the fabricated phase shifter, in a frequency range of 1.5-2.5 GHz, can realize 360 degrees relative phase-shift range with greater than 16.5 dB in return loss and less than 3.8 dB in insertion-loss variation.
URI: http://hdl.handle.net/11536/146950
ISSN: 0149-645X
期刊: 2017 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS)
起始頁: 893
結束頁: 895
顯示於類別:會議論文