研究目的
To design a novel frequency-tunable power divider based on frequency sampling method that differs from conventional frequency-tunable methods, featuring simple structure and easy realization with only one varactor for tunable frequency.
研究成果
The designed frequency-tunable power divider achieves a tuning range from 0.87GHz to 1.45GHz with return loss and isolation greater than 15dB, amplitude unbalance less than 0.05dB, and phase unbalance less than 0.5°. The design is simple and utilizes only one varactor for frequency tuning.
研究不足
The study is based on simulation results, and practical implementation may face challenges related to varactor voltage control precision and material tolerances.
1：Experimental Design and Method Selection:
The design involves a frequency-tunable structure on the input-port of the power divider, utilizing a slot-line resonator whose resonant frequency is tuned by a parallel varactor's voltage.
2：Sample Selection and Data Sources:
The design is simulated using Ansoft HFSS
3：0 with dimensions specified in the paper. List of Experimental Equipment and Materials:
Includes a substrate (Rogers RT/duroid 5880), varactor (SMV1232), blocking capacitor (220pF), and resistor (
4：5k?). Experimental Procedures and Operational Workflow:
The power divider's operation frequency is tuned by varying the voltage applied to the varactor, with performance metrics (return loss, isolation, amplitude, and phase imbalance) measured.
5：Data Analysis Methods:
Simulated results are analyzed to evaluate the power divider's performance across different control voltages.
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