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Design of a Ku-band broadband circularly polarized magneto-electric dipole antenna for satellite communications.
- Source :
-
Electromagnetics . 2024, Vol. 44 Issue 5, p267-281. 15p. - Publication Year :
- 2024
-
Abstract
- In this paper, a broadband circularly polarized (CP) antenna array with stable radiation pattern is proposed for satellite communication applications. The antenna array consists of a 2 $ \times $ × 2 planar antenna array and a feeding network. Based on the magneto-electric (ME) dipole antenna structure, the electric dipoles are modified, and a pair of shorting pins are introduced to adjust the surface current. The bandwidth problems of circular polarization are effectively improved. Then the 2 $ \times $ × 2 broadband CP antenna array is designed and fabricated. The measured results show that the −10 dB impedance bandwidth of 56.3% from 11.1 to 19.79 GHz, and the 3 dB axial ratio (AR) bandwidth of 32.1% from 11.72 to 16.20 GHz. The 3 dB gain bandwidth of 44.2% from 11.10 to 17.40 GHz, and the peak gain is 11.07 dBi. Owing to the above excellent performance, the proposed antenna array can be a candidate for satellite communications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02726343
- Volume :
- 44
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Electromagnetics
- Publication Type :
- Academic Journal
- Accession number :
- 178714103
- Full Text :
- https://doi.org/10.1080/02726343.2024.2374299