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A rotatable and flexible high-power-microwave waveguide joint.

Yibing Cao1,2, Jun Sun1,2, Bei Liu1,2

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A new high-power microwave (HPM) waveguide joint combines choke slots and spherical structures for excellent electrical performance and maneuverability. This innovative design ensures high power handling and low insertion loss for dynamic HPM systems.

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Area of Science:

  • Electrical Engineering
  • Electromagnetics
  • Microwave Engineering

Background:

  • High-power microwave (HPM) systems require robust waveguide components.
  • Existing waveguide joints often compromise between electrical performance and mechanical flexibility.

Purpose of the Study:

  • To propose and validate a novel HPM waveguide joint with enhanced electrical and dynamic performance.
  • To address limitations in maneuverability and power handling of conventional waveguide joints.

Main Methods:

  • Integration of choke slot and spherical structures within the waveguide joint.
  • Electromagnetic simulation and design of an X-band waveguide joint.
  • Experimental validation of high power handling and low insertion loss.

Main Results:

  • The proposed joint maintains low surface electric field strength and good field continuity.
  • Achieved high power handling capacity with low insertion loss (<0.12 dB).
  • Demonstrated maneuverability with angular rotation and radial deflection capabilities.

Conclusions:

  • The novel HPM waveguide joint offers a superior combination of electrical performance and maneuverability.
  • The design is suitable for dynamic HPM applications requiring high power transmission and flexibility.
  • Experimental results confirm the design's effectiveness in high-power scenarios.