The Design of a High-Isolation Millimeter-Wave Power Divider Based on the Gap Waveguide Technology

Document Type : Original Article

Author

Assistant Professor, Department of Field Telecommunication, Faculty of Electrical and Computer Engineering, Kerman University of Industrial and Advanced Technology, Kerman, Iran

Abstract

This paper presents the design of a high-isolation power divider based on the groove gap
waveguide. The proposed structure is similar to a rectangular waveguide Magic-T when its
difference port is terminated using a waveguide match-load. Wideband impedance matching and
high-isolation of the structure are obtained by placing some PEC steped cones inside the
structure. First, a 1×2-way power divider is designed such that by combining a specific number
of it, power dividers with more outputs can be acheived and to demonstrate this idea a 1×4-way
power divider is assembled. The results of simulating the proposed power divider show that the
structure has 33% frequency bandwidth covering from 42 GHz to 59 GHz. The structure
reflection coefficient is below -15 dB, the insertion loss is lower than 0.12 dB and the isolation
is better than 18 dB in the whole frequency bandwidth and the simulation results prove that the
proposed power divider is an excellent candidate for millimeter-wave applications.

Keywords

Smiley face

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Radar
Volume 9, Issue 1 - Serial Number 25
September 2021
Pages 75-81

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History

  • Receive Date: 11 April 2021
  • Revise Date: 02 June 2021
  • Accept Date: 12 December 2021
  • Publish Date: 23 August 2021

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