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Suppression of grating lobes from a corrugated 22 slot antenna array with element spacing beyond a wavelength
Huang C.; Zhao Z.; Feng Q.; Luo X.
Source PublicationIET Microwaves, Antennas and Propagation
Volume5Issue:13Pages:1607-1612
2011
Language英语
Subtype期刊论文
AbstractA method of loading surface corrugation in a 2×2 slot planar array with element spacing in the E plane beyond a wavelength is proposed for suppressing high grating lobes. This antenna array adopts a corrugated structure as a secondary radiation source to make effective spacing of elements within a wavelength. The authors investigate numerically and experimentally the performance of the antenna, and find good agreement between the measured and simulated results. Compared with conventional flat 2×2 slot arrays, the results show that the gain of the corrugated slot antenna array is significantly improved by about 6 dB, the half-power beamwidth is narrowed by 12° in the E plane and 10° in the H plane and the high grating lobe level occurring in the E plane of the flat slot array is sharply suppressed as well. Moreover, it is found that the introduction of a secondary source in this slot array can also make the element spacing in the H plane larger than a wavelength without an obvious grating lobe. The radiation mechanism of this antenna is well described and the role of surface corrugation in this antenna is demonstrated as the secondary radiation source which is responsible for the improved antenna gain and suppressed grating lobe. © 2011 The Institution of Engineering and Technology.; A method of loading surface corrugation in a 2×2 slot planar array with element spacing in the E plane beyond a wavelength is proposed for suppressing high grating lobes. This antenna array adopts a corrugated structure as a secondary radiation source to make effective spacing of elements within a wavelength. The authors investigate numerically and experimentally the performance of the antenna, and find good agreement between the measured and simulated results. Compared with conventional flat 2×2 slot arrays, the results show that the gain of the corrugated slot antenna array is significantly improved by about 6 dB, the half-power beamwidth is narrowed by 12° in the E plane and 10° in the H plane and the high grating lobe level occurring in the E plane of the flat slot array is sharply suppressed as well. Moreover, it is found that the introduction of a secondary source in this slot array can also make the element spacing in the H plane larger than a wavelength without an obvious grating lobe. The radiation mechanism of this antenna is well described and the role of surface corrugation in this antenna is demonstrated as the secondary radiation source which is responsible for the improved antenna gain and suppressed grating lobe. © 2011 The Institution of Engineering and Technology.
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/6765
Collection微细加工光学技术国家重点实验室(开放室)
Corresponding AuthorHuang C.
Affiliation中国科学院光电技术研究所
Recommended Citation
GB/T 7714
Huang C.,Zhao Z.,Feng Q.,et al. Suppression of grating lobes from a corrugated 22 slot antenna array with element spacing beyond a wavelength[J]. IET Microwaves, Antennas and Propagation,2011,5(13):1607-1612.
APA Huang C.,Zhao Z.,Feng Q.,&Luo X..(2011).Suppression of grating lobes from a corrugated 22 slot antenna array with element spacing beyond a wavelength.IET Microwaves, Antennas and Propagation,5(13),1607-1612.
MLA Huang C.,et al."Suppression of grating lobes from a corrugated 22 slot antenna array with element spacing beyond a wavelength".IET Microwaves, Antennas and Propagation 5.13(2011):1607-1612.
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