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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

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A novel high-power waveguide phase shifter with continuous linear phase adjustment.

Cheng-Wei Yuan¹, Long-Zhou Yu¹, Qiang Zhang¹

¹The College of Advanced Interdisciplinary, National University of Defense Technology, Changsha 410073, China and China Aerodynamics Research and Development Center, Mianyang 621000, China.

The Review of Scientific Instruments

|December 2, 2020

Summary

This summary is machine-generated.

This study introduces a novel all-metal phase shifter for high-power microwaves. It offers continuous 360° phase adjustment with high transmission efficiency, suitable for advanced antenna systems.

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Area of Science:

Microwave Engineering
Electromagnetics

Background:

High-power microwave systems require precise phase control.
Existing phase shifters may have limitations in continuous adjustment or power handling.

Purpose of the Study:

To present and test a novel all-metal phase shifter.
To achieve continuous linear phase adjustment for high-power applications.

Main Methods:

Design and simulation of an all-metal phase shifter.
Utilizing a rotating phase reverser for circularly polarized waves.
Experimental validation of simulated performance.

Main Results:

Achieved transmission efficiency >99.90% at 8.4 GHz.
Bandwidth for >98.00% efficiency is 50 MHz.
Estimated power capacity >80 MW under vacuum.

Conclusions:

The novel phase shifter provides continuous, mutation-free phase adjustment.
Demonstrated high efficiency and power capacity make it suitable for demanding applications.
Potential applications include beam-steerable antenna arrays and mode conversion systems.