Comparison of Additively Manufactured Dual-Polarized Probe Antennas at Ku-Band

Sabin Kumar Karki, Juha Ala-Laurinaho, Ville Viikari

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Abstract

This paper presents a comparison between two additively manufactured dual-polarized open-ended waveguide probe antennas. The probe antenna design covers the up-link and down-link frequencies of satellite communications at Ku-band (10.7 - 14.5 GHz), and it could be used for fast ground-station antenna measurements. The used fabrication processes are the fused filament fabrication (FFF) followed by the metallization with conductive paint and the direct metal printing using binder-jet process. The measured performance of the manufactured prototypes agrees well with the simulated performance in the design frequency range. The slight dimensional deviations from the design values increase the low-frequency coupling and reflection coefficients compared to the simulations. To decrease the coupling between polarizations, a horn-type waveguide opening is introduced.

Original languageEnglish
Title of host publication2023 International Workshop on Antenna Technology, iWAT 2023
PublisherIEEE
Number of pages4
ISBN (Electronic)979-8-3503-3408-1
DOIs
Publication statusPublished - 2023
MoE publication typeA4 Conference publication
EventInternational Workshop on Antenna Technology - Aalborg, Denmark
Duration: 15 May 202317 May 2023

Conference

ConferenceInternational Workshop on Antenna Technology
Abbreviated titleiWAT
Country/TerritoryDenmark
CityAalborg
Period15/05/202317/05/2023

Keywords

  • additive manufacturing
  • orthomode transducer
  • probe antenna
  • square waveguide

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