研究目的
Investigating the design and performance of two types of modified CPW Wilkinson power dividers for GaN MMIC applications, focusing on miniaturization and bandwidth improvement.
研究成果
The paper successfully demonstrates two types of miniaturized lumped element Wilkinson power dividers with significant size reduction and maintained bandwidth. The measured circuits show excellent performance in terms of port matching, isolation, and insertion loss, making them suitable for GaN MMIC applications.
研究不足
The study focuses on X-band applications and may not directly apply to other frequency bands without further optimization. The miniaturization techniques may introduce additional complexities in fabrication and tuning.
1：Experimental Design and Method Selection:
The study involves the design of two types of modified Wilkinson power dividers using lumped element equivalents and capacitive loading for miniaturization, and a symmetrical series RLC circuit in the isolation network for bandwidth compensation.
2：Sample Selection and Data Sources:
The dividers are fabricated using a GaN on SiC MMIC process.
3：List of Experimental Equipment and Materials:
Includes a Cascade RF wafer probe station, GGB GSG150 picoprobes, and R&S ZVA40 vector network analyzer for measurements.
4：Experimental Procedures and Operational Workflow:
The dividers are designed at X-band, fabricated, and then measured for performance parameters.
5：Data Analysis Methods:
Simulation and measurement results are compared to validate the design.
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