研究目的
To present a new 1-to-N way ring combiner with a common delta port, providing design guidelines and demonstrating its performance through passive and active implementations for applications like power monitoring and energy recycling.
研究成果
The proposed N-way ring combiner offers a compact, planar design with a common delta port beneficial for energy recovery and calibration. It demonstrates low insertion loss and high isolation, validated through simulations and measurements. However, bandwidth is limited, and PVT variations impact performance, suggesting improvements through better integration and automated assembly.
研究不足
The ring combiners have narrower bandwidth compared to other combiner types, and performance can be affected by process, voltage, and temperature (PVT) variations, leading to phase mismatches and reduced output power. Manual assembly introduces inconsistencies, and the designs require careful phase alignment.
1：Experimental Design and Method Selection:
The methodology involves theoretical analysis of ring-hybrid structures to derive design rules for N-way planar ring combiners, including port spacing and impedance calculations. Simulations are performed using ADS software for validation.
2：Sample Selection and Data Sources:
Prototypes are fabricated on Rogers RO4350 substrate PCBs for 4-way and 6-way combiners, with and without embedded amplifiers.
3：List of Experimental Equipment and Materials:
Includes Rogers RO4350 substrate, HMC406MS8G amplifiers, transmission lines, splitters, switches, and measurement instruments like signal generators and network analyzers.
4：Experimental Procedures and Operational Workflow:
Fabricate combiners, measure insertion loss, isolation, output power, and linearity using modulated signals (e.g., LTE waveforms). Adjust phases between input groups for tuning.
5：Data Analysis Methods:
Compare simulated and measured S-parameters, output power, and isolation using standard RF measurement techniques and software tools like ADS.
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