研究目的
To design and analyze a quad-band Gysel power divider capable of achieving equal and unequal power division at four arbitrary frequencies.
研究成果
The proposed quad-band Gysel power divider successfully achieves equal and unequal power divisions with good matching and acceptable isolation performance at each band. The design is suitable for multi-standard wireless systems.
研究不足
The design is limited by practical constraints on line impedances and frequency ratios, affecting the matching levels and operational bandwidth, especially in unequal power division scenarios.
1：Experimental Design and Method Selection:
The design involves replacing the quarter-wave lines of a single-band Gysel divider with quad-band pi-type transformers to achieve quad-band operation. Theoretical analysis is conducted to derive the S-parameters of the proposed divider.
2：Sample Selection and Data Sources:
Two prototypes of the quad-band Gysel divider are fabricated using microstrip lines on a dielectric substrate (Rogers RO4003C) for validation.
3：List of Experimental Equipment and Materials:
Microstrip lines on Rogers RO4003C substrate, 50 Ω chip resistors for isolation, and Wiltron 360B Vector Network Analyzer for measurements.
4：Experimental Procedures and Operational Workflow:
The dividers are simulated and optimized using Key sight's Advanced Design System (ADS) and a full-wave simulator before fabrication. Measurements are taken to validate the design.
5：Data Analysis Methods:
The S-parameters are analyzed to evaluate the performance of the dividers at the four operational frequencies.
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
