A Geodesic H-Plane Horn Antenna with Switchable Circular Polarization at K<sub>a</sub>-Band
This paper presents a geodesic H-plane horn antenna with switchable circular polarization. The polarization diversity is realized by stacking two identical geodesic horn antennas and joining them at the aperture using a parallel plate waveguide septum polarizer. Depending on which of the two horns is fed, the antenna can radiate either left-hand or right-hand circular polarization. The proposed antenna operates in the K, -band, with a center frequency of 29 GHz and a 3 dB axial ratio bandwidth of 15 %.
Authors
- Freysteinn Vidar Vidarsson (ORCID: https://orcid.org/0000-0003-2193-5131)
- Óscar Quevedo-Teruel (ORCID: https://orcid.org/0000-0002-4900-4788)
- Oskar Zetterström (ORCID: https://orcid.org/0000-0002-5338-1789)
Institutions
- KTH Royal Institute of Technology (SE)
Publication Details
- Published
- 2025-03-30
- DOI
- https://doi.org/10.23919/eucap63536.2025.10999988
- Primary Topic
- Antenna Design and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- VINNOVA