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A directional circularly polarized crossed‐dipole antenna with bandwidth enhancement.
- Source :
-
Microwave & Optical Technology Letters . Sep2018, Vol. 60 Issue 9, p2161-2167. 7p. 2 Diagrams, 2 Charts, 5 Graphs. - Publication Year :
- 2018
-
Abstract
- Abstract: A broadband circularly polarized antenna based on the crossed‐dipole structure is designed. The antenna consists of a pair of dual‐side printed crossed dipoles, a loop phase delay line, and a parasitic patch. By modifying the configuration of the dipoles and introducing a parasitic patch, a wide axial ratio (AR) bandwidth is obtained. A defected ground plane is designed, which has a significant improvement in extending the 3‐dB AR bandwidth and enhances the gain. The proposed prototype is manufactured and measured for validation. Measured results show that the antenna achieves both −10 dB impedance bandwidth and 3‐dB AR bandwidth of 68.6% (2.3–4.7 GHz). Moreover, the average gain of the antenna is about 8 dBi within the operating band, with a floating less than 2 dB. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DIPOLE antennas
*CIRCULAR polarization
*BANDWIDTHS
*PROTOTYPES
*ELECTRIC impedance
Subjects
Details
- Language :
- English
- ISSN :
- 08952477
- Volume :
- 60
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Microwave & Optical Technology Letters
- Publication Type :
- Academic Journal
- Accession number :
- 131206333
- Full Text :
- https://doi.org/10.1002/mop.31324