研究目的
Investigating the design and measured results of variable phase shifters on triplicate suspended transmission lines in the microwave X-band for variable pointing radar applications.
研究成果
The article presents the design and measurement results of passive devices of triplicate transmission line and variable phase shifters in the X-band for applications of a variable pointing radar. The results obtained with the loaded triplicate phase shifters have good behavior in frequency and the measured losses are less than 1.2 dB.
研究不足
The use of load line phase shifting circuits is limited to small phase shifts due to misadaptation that occurs with a 90o phase shift circuit.
1：Experimental Design and Method Selection:
The design involves variable phase shifters on triplicate suspended transmission lines using PIN or varactor diodes to control the load on the transmission line.
2：Sample Selection and Data Sources:
The study uses suspended transmission lines and phase shifters designed for the X-band.
3：List of Experimental Equipment and Materials:
Includes PIN diodes (MACOM MA4SPS502), Roger RO4003C substrate, and triplicate suspended transmission lines.
4：Experimental Procedures and Operational Workflow:
The design and measurement of phase shifters and passive devices like power dividers and blends on suspended transmission lines.
5：Data Analysis Methods:
Simulation and measurement of reflection and transmission coefficients, amplitude, and phase shifts.
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