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A novel high power X-band ferrite phase shifter
G J Deng1, W H Huang1, J W Li1
1Science and Technology of High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, China.
The Review of Scientific Instruments
|February 3, 2017
Summary
A new X-band ferrite phase shifter (PS) uses parallel waveguides for high power. This novel design achieves 270 kW operation with low insertion loss, showing promise for high-power microwave applications.
Area of Science:
- Microwave Engineering
- Materials Science
Background:
- High-power microwave systems require efficient phase shifting components.
- Existing ferrite phase shifters face limitations in power handling capacity.
Purpose of the Study:
- To propose and validate a novel high-power X-band ferrite phase shifter (PS).
- To investigate a parallel waveguide structure for enhanced power capacity.
Main Methods:
- Design and testing of individual dual-toroid phase shift units.
- Development of a multi-unit PS by connecting four phase shift units in parallel.
- High-power testing to evaluate performance and power handling.
Main Results:
- Individual phase shift units demonstrated a power capacity of 115 kW.
- The parallel-configured PS achieved stable operation at 270 kW.
- The device exhibited an insertion loss of 0.82 dB and a differential phase shift of 300° at 9.3 GHz.
- Return loss exceeded 16 dB across the 9.0-9.5 GHz band.
Conclusions:
- The proposed parallel waveguide ferrite phase shifter effectively increases power handling capability.
- The design overcomes ferrite nonlinearity thresholds for higher power operation.
- This technology is suitable for demanding high-power microwave applications.
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