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System efficiency analysis for high power solid state radio frequency transmitter.

Akhilesh Jain1, D K Sharma1, A K Gupta1

  • 1RF Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452013, India.

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|March 6, 2014
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Summary
This summary is machine-generated.

This study analyzes high-power radio frequency solid-state transmitters, focusing on system efficiency. Amplitude and phase imbalances significantly impact performance, requiring careful characterization for optimal power delivery.

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Area of Science:

  • Electrical Engineering
  • Physics

Background:

  • High-power radio frequency (RF) solid-state transmitters are crucial for applications like particle accelerators.
  • These systems integrate multiple solid-state power amplifier (SSPA) modules, power combiners, dividers, and control hardware.
  • Characterizing system efficiency and performance at both component and system levels is essential.

Purpose of the Study:

  • To investigate the relationships affecting system efficiency in high-power RF solid-state transmitters.
  • To analyze the impact of amplitude and phase imbalances on system efficiency and power distribution.
  • To provide a system-level study and experimental characterization for real-time operation.

Main Methods:

  • Development of a scattering parameter model for transmitter analysis.
  • Utilizing a system-level simulator for fine-tuning analysis results.
  • Experimental characterization of a 75 kW modular and scalable solid-state transmitter operating at 505.8 MHz.

Main Results:

  • Quantified the influence of amplitude and phase imbalance on system efficiency and power distribution.
  • Validated the scattering parameter model through system-level simulation and experimental data.
  • Demonstrated a method for characterizing real-time operation of high-power SSPAs.

Conclusions:

  • System-level characterization and analysis are vital for optimizing high-power RF solid-state transmitter efficiency.
  • The developed scattering parameter model and simulation approach provide a robust framework for transmitter design.
  • This research offers valuable insights for future high-power solid-state amplifier designs in particle accelerators and similar applications.