Wideband, Low-Profile, Dual-Polarized Slot Antenna with an AMC Surface for Wireless Communications
A wideband dual-polarized slot antenna loaded with artificial magnetic conductor (AMC) is proposed for WLAN/WIMAX and LTE applications. The slot antenna mainly consists of two pairs of arrow-shaped slots along the diagonals of the square patch. Stepped microstrip feedlines are placed orthogonally to...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2016/7641382 |
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| _version_ | 1832554488635850752 |
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| author | Wei Hu Rui-Na Lian Zhao-Yang Tang Ying-Zeng Yin |
| author_facet | Wei Hu Rui-Na Lian Zhao-Yang Tang Ying-Zeng Yin |
| author_sort | Wei Hu |
| collection | DOAJ |
| description | A wideband dual-polarized slot antenna loaded with artificial magnetic conductor (AMC) is proposed for WLAN/WIMAX and LTE applications. The slot antenna mainly consists of two pairs of arrow-shaped slots along the diagonals of the square patch. Stepped microstrip feedlines are placed orthogonally to excite the horizontal and vertical polarizations of the antenna. To realize unidirectional radiation and low profile, an AMC surface composed of 7 × 7 unit cells is designed underneath a distance of 0.09λ0 (λ0 being the wavelength in free space at 2.25 GHz) from the slot antenna. Both the dual-polarized slot antenna and the AMC surface are fabricated and measured. Experimental results demonstrate that the proposed antenna achieves for both polarizations a wide impedance bandwidth (return loss 10 dB) of 36.7%, operating from 1.96 to 2.84 GHz. The isolation between the two input ports keeps higher than 29 dB whereas the cross-polarization levels basically maintain lower than −30 dB across the entire frequency band. High front-to-back ratios better than 22 dB and a stable gain higher than 8 dBi are obtained over the whole band. |
| format | Article |
| id | doaj-art-47009a6f8c3041849531e73874ad9956 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-47009a6f8c3041849531e73874ad99562025-02-03T05:51:25ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772016-01-01201610.1155/2016/76413827641382Wideband, Low-Profile, Dual-Polarized Slot Antenna with an AMC Surface for Wireless CommunicationsWei Hu0Rui-Na Lian1Zhao-Yang Tang2Ying-Zeng Yin3National Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xi’an, Shaanxi 710071, ChinaNational Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xi’an, Shaanxi 710071, ChinaNational Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xi’an, Shaanxi 710071, ChinaNational Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xi’an, Shaanxi 710071, ChinaA wideband dual-polarized slot antenna loaded with artificial magnetic conductor (AMC) is proposed for WLAN/WIMAX and LTE applications. The slot antenna mainly consists of two pairs of arrow-shaped slots along the diagonals of the square patch. Stepped microstrip feedlines are placed orthogonally to excite the horizontal and vertical polarizations of the antenna. To realize unidirectional radiation and low profile, an AMC surface composed of 7 × 7 unit cells is designed underneath a distance of 0.09λ0 (λ0 being the wavelength in free space at 2.25 GHz) from the slot antenna. Both the dual-polarized slot antenna and the AMC surface are fabricated and measured. Experimental results demonstrate that the proposed antenna achieves for both polarizations a wide impedance bandwidth (return loss 10 dB) of 36.7%, operating from 1.96 to 2.84 GHz. The isolation between the two input ports keeps higher than 29 dB whereas the cross-polarization levels basically maintain lower than −30 dB across the entire frequency band. High front-to-back ratios better than 22 dB and a stable gain higher than 8 dBi are obtained over the whole band.http://dx.doi.org/10.1155/2016/7641382 |
| spellingShingle | Wei Hu Rui-Na Lian Zhao-Yang Tang Ying-Zeng Yin Wideband, Low-Profile, Dual-Polarized Slot Antenna with an AMC Surface for Wireless Communications International Journal of Antennas and Propagation |
| title | Wideband, Low-Profile, Dual-Polarized Slot Antenna with an AMC Surface for Wireless Communications |
| title_full | Wideband, Low-Profile, Dual-Polarized Slot Antenna with an AMC Surface for Wireless Communications |
| title_fullStr | Wideband, Low-Profile, Dual-Polarized Slot Antenna with an AMC Surface for Wireless Communications |
| title_full_unstemmed | Wideband, Low-Profile, Dual-Polarized Slot Antenna with an AMC Surface for Wireless Communications |
| title_short | Wideband, Low-Profile, Dual-Polarized Slot Antenna with an AMC Surface for Wireless Communications |
| title_sort | wideband low profile dual polarized slot antenna with an amc surface for wireless communications |
| url | http://dx.doi.org/10.1155/2016/7641382 |
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