A Flexible Phased-MIMO Array Antenna with Transmit Beamforming
Although phased-array antennas have been widely employed in modern radars, the requirements of many emerging applications call for new more advanced array antennas. This paper proposes a flexible phased-array multiple-input multiple-output (MIMO) array antenna with transmit beamforming. This approac...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2012/609598 |
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| author | Wen-Qin Wang Huaizong Shao |
| author_facet | Wen-Qin Wang Huaizong Shao |
| author_sort | Wen-Qin Wang |
| collection | DOAJ |
| description | Although phased-array antennas have been widely employed in modern radars, the requirements of many emerging applications call for new more advanced array antennas. This paper proposes a flexible phased-array multiple-input multiple-output (MIMO) array antenna with transmit beamforming. This approach divides the transmit antenna array into multiple subarrays that are allowed to overlap each subarray coherently transmits a distinct waveform, which is orthogonal to the waveforms transmitted by other subarrays, at a distinct transmit frequency. That is, a small frequency increment is employed in each subarray. Each subarray forms a directional beam and all beams may be steered to different directions. The subarrays jointly offer flexible operating modes such as MIMO array which offers spatial diversity gain, phased-array which offers coherent directional gain and frequency diverse array which provides range-dependent beampattern. The system performance is examined by analyzing the transmit-receive beampatterns. The proposed approach is validated by extensive numerical simulation results. |
| format | Article |
| id | doaj-art-60f7d094e43a4efab455de857c92b743 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-60f7d094e43a4efab455de857c92b7432025-08-20T03:34:57ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772012-01-01201210.1155/2012/609598609598A Flexible Phased-MIMO Array Antenna with Transmit BeamformingWen-Qin Wang0Huaizong Shao1The School of Communication and Information Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, ChinaThe School of Communication and Information Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, ChinaAlthough phased-array antennas have been widely employed in modern radars, the requirements of many emerging applications call for new more advanced array antennas. This paper proposes a flexible phased-array multiple-input multiple-output (MIMO) array antenna with transmit beamforming. This approach divides the transmit antenna array into multiple subarrays that are allowed to overlap each subarray coherently transmits a distinct waveform, which is orthogonal to the waveforms transmitted by other subarrays, at a distinct transmit frequency. That is, a small frequency increment is employed in each subarray. Each subarray forms a directional beam and all beams may be steered to different directions. The subarrays jointly offer flexible operating modes such as MIMO array which offers spatial diversity gain, phased-array which offers coherent directional gain and frequency diverse array which provides range-dependent beampattern. The system performance is examined by analyzing the transmit-receive beampatterns. The proposed approach is validated by extensive numerical simulation results.http://dx.doi.org/10.1155/2012/609598 |
| spellingShingle | Wen-Qin Wang Huaizong Shao A Flexible Phased-MIMO Array Antenna with Transmit Beamforming International Journal of Antennas and Propagation |
| title | A Flexible Phased-MIMO Array Antenna with Transmit Beamforming |
| title_full | A Flexible Phased-MIMO Array Antenna with Transmit Beamforming |
| title_fullStr | A Flexible Phased-MIMO Array Antenna with Transmit Beamforming |
| title_full_unstemmed | A Flexible Phased-MIMO Array Antenna with Transmit Beamforming |
| title_short | A Flexible Phased-MIMO Array Antenna with Transmit Beamforming |
| title_sort | flexible phased mimo array antenna with transmit beamforming |
| url | http://dx.doi.org/10.1155/2012/609598 |
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