研究目的
Investigating the design and performance of a microstrip LC two-section Wilkinson power divider based on GaAs IPD process to reduce size and avoid high loss.
研究成果
The proposed microstrip LC two-section Wilkinson power divider successfully reduces size and avoids high loss, with an operation band of 2.850 GHz to 4.832 GHz and a bandwidth of 1.982 GHz. The insertion loss is less than 1.30 dB, and isolation is higher than 18.5 dB, demonstrating good agreement between simulation and measurement.
研究不足
The capacitances and inductances are sensitive to frequency, leading to significant variation between ideal calculations and practical simulations. The design requires careful optimization to achieve desired performance.
1：Experimental Design and Method Selection:
The study proposes a microstrip LC two-section Wilkinson power divider, utilizing a lumped LC network and microstrip lines to reduce size and avoid high loss. The design involves calculating inductance and capacitance to ensure the LC network is equivalent to a microstrip line.
2：Sample Selection and Data Sources:
The power divider is fabricated using GaAs IPD technology and measured on wafer.
3：List of Experimental Equipment and Materials:
GaAs IPD process (GaAs thickness = 100 μm, metal thickness is 1 μm for M1, 2 μm for M2), inductors and capacitors with specified dimensions.
4：Experimental Procedures and Operational Workflow:
The design involves adjusting circuit parameters to compensate for parasitic effects, studying even-mode input admittance, and optimizing capacitance for better performance.
5：Data Analysis Methods:
The performance is evaluated through simulation and measurement of S parameters, insertion loss, and isolation.
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