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题名:
Suppression of grating lobes from a corrugated 2 x 2 slot antenna array with element spacing beyond a wavelength
作者: Huang, C.; Zhao, Z.; Feng, Q.; Luo, X.
刊名: IET MICROWAVES ANTENNAS & PROPAGATION
出版日期: 2011-10-21
卷号: 5, 期号:13, 页码:1607-1612
文章类型: Article
英文摘要: A method of loading surface corrugation in a 2 x 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 x 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 degrees in the E plane and 10 degrees 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.
WOS标题词: Science & Technology ; Technology
类目[WOS]: Engineering, Electrical & Electronic ; Telecommunications
研究领域[WOS]: Engineering ; Telecommunications
关键词[WOS]: SUBWAVELENGTH APERTURE ; ENHANCED TRANSMISSION ; MICROWAVE-RADIATION ; GROOVES ; LIGHT ; GAIN ; SURFACES
收录类别: SCI
语种: 英语
WOS记录号: WOS:000297266100012
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3471
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: Chinese Acad Sci, State Key Lab Opt Technol Microfabricat, Inst Opt & Elect, Chengdu 610209, Peoples R China

Recommended Citation:
Huang, C.,Zhao, Z.,Feng, Q.,et al. Suppression of grating lobes from a corrugated 2 x 2 slot antenna array with element spacing beyond a wavelength[J]. IET MICROWAVES ANTENNAS & PROPAGATION,2011,5(13):1607-1612.
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