A Wideband Wide-Scan and Low-Profile Array Based on Enhanced Gain and High-Power Elements
A wideband wide-scan array based on dual-polarized elements is presented in this paper. The proposed element consists of two flared metallic wings and two shorting posts over a ground plane which is excited by a RF connector vertically. Without complex feeding network, the antenna element features w...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2024-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10757405/ |
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| Summary: | A wideband wide-scan array based on dual-polarized elements is presented in this paper. The proposed element consists of two flared metallic wings and two shorting posts over a ground plane which is excited by a RF connector vertically. Without complex feeding network, the antenna element features wideband, low-profile, and high power handling capability. Besides, elements do not require electrical connection and can be arranged with gaps between neighbors, allowing for modular construction. The dual-polarized array in a square lattice can achieve wideband wide-scan performance. To verify the design, an <inline-formula> <tex-math notation="LaTeX">$11\times 11$ </tex-math></inline-formula> prototype has been fabricated and measured. The measurements of this prototype are presented and are in good agreement with the simulations. The results reveal that the array element can achieve a relative bandwidth of 100% for VSWR <inline-formula> <tex-math notation="LaTeX">$\le 3$ </tex-math></inline-formula> at scans out to <inline-formula> <tex-math notation="LaTeX">$\theta \,\, = \,\, 45^{\circ }$ </tex-math></inline-formula> and an enhanced gain of 1 dB in lower frequency band. The array can obtain better than 20 dB polarization purity at 4 GHz and scan loss of lower than 3 dB over the band, respectively. |
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| ISSN: | 2169-3536 |