研究目的
Investigating the design and optimization of a low-loss paraf?n PCM based true-time delay, continuously-tunable phase shifter for mmW band applications.
研究成果
The study successfully designed and optimized a W-band true-time delay phase shifter using paraf?n PCM, achieving a figure-of-merit of 71.8?/dB and a maximum insertion loss of 5 dB for a 360? phase shift. The multiphysics simulation confirmed the feasibility of the design, and a novel fabrication method for paraf?n film deposition was developed.
研究不足
The study is limited by the fabrication process and the physical properties of paraf?n PCM, including its volumetric change and actuation time. Further optimization and experimental validation are needed.
1：Experimental Design and Method Selection:
The study involves designing a distributed loaded line phase shifter using paraf?n PCM, optimizing it for maximum phase shift per unit of insertion loss, and simulating its performance using ANSYS HFSS and COMSOL for multiphysics analysis.
2：Sample Selection and Data Sources:
A 200 μm-thick quartz substrate is chosen for its low loss tangent at mmW band. The design parameters are optimized for a CPW line with various widths.
3：List of Experimental Equipment and Materials:
Includes a quartz substrate, gold layers for CPW lines and MEMS bridges, paraf?n PCM, and SiO2 for insulation.
4：Experimental Procedures and Operational Workflow:
The process involves fabricating the phase shifter using a 6-mask photolithographic process, including the deposition of paraf?n films and MEMS bridges.
5：Data Analysis Methods:
The performance is evaluated through full-wave simulation in Ansoft HFSS and circuit simulation in Advanced Design System (ADS), with results compared for validation.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
