Wideband DBF phased array antenna on LEO satellite
Genetic algorithm with multi-objective optimization strategy was proposed to synthesize the antenna array on LEO satellite according to the requirements of iso-flux beams coverage. Based on the rotation symmetry of beam coverage and elements distribution,antenna elements were partitioned into groups...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2010-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74648860/ |
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| _version_ | 1841537706069327872 |
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| author | LIANG Guang1 GONG Wen-bin1 LIU Hui-jie1 YU Jin-pei1 |
| author_facet | LIANG Guang1 GONG Wen-bin1 LIU Hui-jie1 YU Jin-pei1 |
| author_sort | LIANG Guang1 |
| collection | DOAJ |
| description | Genetic algorithm with multi-objective optimization strategy was proposed to synthesize the antenna array on LEO satellite according to the requirements of iso-flux beams coverage. Based on the rotation symmetry of beam coverage and elements distribution,antenna elements were partitioned into groups in beam space and element space,and just one third of beam forming matrix coefficients were independent. The simplicity of DBF matrix helped reduce the number of parameters in GA and design the hardware structure of DBF network. Generalized DFT filter bank,multiplex DBF computer and RF calibration in close-loop mode were adopted to design the DBF network,which can reduce the calculation by 95.5% and save the multiplier resource up to 80%. Ultimately a 61-channel phased array transmitter antenna with 16 simultaneous beams was designed. The measurements in anechoic chamber demonstrate that the phased array antenna has good performance of iso-flux beams coverage,which validates the rationality of algorithms and project implementation. |
| format | Article |
| id | doaj-art-188e80b25a0b4ee4bb4619b7dab6c4ca |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2010-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-188e80b25a0b4ee4bb4619b7dab6c4ca2025-01-14T08:25:39ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2010-01-0131263674648860Wideband DBF phased array antenna on LEO satelliteLIANG Guang1GONG Wen-bin1LIU Hui-jie1YU Jin-pei1Genetic algorithm with multi-objective optimization strategy was proposed to synthesize the antenna array on LEO satellite according to the requirements of iso-flux beams coverage. Based on the rotation symmetry of beam coverage and elements distribution,antenna elements were partitioned into groups in beam space and element space,and just one third of beam forming matrix coefficients were independent. The simplicity of DBF matrix helped reduce the number of parameters in GA and design the hardware structure of DBF network. Generalized DFT filter bank,multiplex DBF computer and RF calibration in close-loop mode were adopted to design the DBF network,which can reduce the calculation by 95.5% and save the multiplier resource up to 80%. Ultimately a 61-channel phased array transmitter antenna with 16 simultaneous beams was designed. The measurements in anechoic chamber demonstrate that the phased array antenna has good performance of iso-flux beams coverage,which validates the rationality of algorithms and project implementation.http://www.joconline.com.cn/zh/article/74648860/phased array antennadigital beam forminggenetic algorithmDFT filter bank |
| spellingShingle | LIANG Guang1 GONG Wen-bin1 LIU Hui-jie1 YU Jin-pei1 Wideband DBF phased array antenna on LEO satellite Tongxin xuebao phased array antenna digital beam forming genetic algorithm DFT filter bank |
| title | Wideband DBF phased array antenna on LEO satellite |
| title_full | Wideband DBF phased array antenna on LEO satellite |
| title_fullStr | Wideband DBF phased array antenna on LEO satellite |
| title_full_unstemmed | Wideband DBF phased array antenna on LEO satellite |
| title_short | Wideband DBF phased array antenna on LEO satellite |
| title_sort | wideband dbf phased array antenna on leo satellite |
| topic | phased array antenna digital beam forming genetic algorithm DFT filter bank |
| url | http://www.joconline.com.cn/zh/article/74648860/ |
| work_keys_str_mv | AT liangguang1 widebanddbfphasedarrayantennaonleosatellite AT gongwenbin1 widebanddbfphasedarrayantennaonleosatellite AT liuhuijie1 widebanddbfphasedarrayantennaonleosatellite AT yujinpei1 widebanddbfphasedarrayantennaonleosatellite |