{"title":"一波长元间距透镜加载圆极化相控阵中的光栅瓣抑制","authors":"Zhicheng Huang, S. Liao, W. Che, Q. Xue","doi":"10.1109/IWS55252.2022.9977808","DOIUrl":null,"url":null,"abstract":"This paper presents a low grating lobe lens loaded circularly polarized phased array with one wavelength element spacing at 28GHz band. The 2×2-element slot-coupled corner-truncated patch antenna is fed through a sequential feeding network, which, as a subarray, further forms a 4×4 phased array. A lens is placed above each patch sub array to suppress the grating lobe during the angle scanning. The results show that within ±15° scanning angle, the difference between the main lobe and the grating lobe remains below -11 dB within 25-31GHz. Besides, at broadside, the 3-dB axial ratio bandwidth is 21.4% and the aperture efficiency is above 60% in 19.9% bandwidth.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Grating Lobe Suppression in Lens Loaded Circularly Polarized Phased Array with One Wavelength Element Spacing\",\"authors\":\"Zhicheng Huang, S. Liao, W. Che, Q. Xue\",\"doi\":\"10.1109/IWS55252.2022.9977808\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a low grating lobe lens loaded circularly polarized phased array with one wavelength element spacing at 28GHz band. The 2×2-element slot-coupled corner-truncated patch antenna is fed through a sequential feeding network, which, as a subarray, further forms a 4×4 phased array. A lens is placed above each patch sub array to suppress the grating lobe during the angle scanning. The results show that within ±15° scanning angle, the difference between the main lobe and the grating lobe remains below -11 dB within 25-31GHz. Besides, at broadside, the 3-dB axial ratio bandwidth is 21.4% and the aperture efficiency is above 60% in 19.9% bandwidth.\",\"PeriodicalId\":126964,\"journal\":{\"name\":\"2022 IEEE MTT-S International Wireless Symposium (IWS)\",\"volume\":\"37 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-08-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2022 IEEE MTT-S International Wireless Symposium (IWS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IWS55252.2022.9977808\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE MTT-S International Wireless Symposium (IWS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWS55252.2022.9977808","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Grating Lobe Suppression in Lens Loaded Circularly Polarized Phased Array with One Wavelength Element Spacing
This paper presents a low grating lobe lens loaded circularly polarized phased array with one wavelength element spacing at 28GHz band. The 2×2-element slot-coupled corner-truncated patch antenna is fed through a sequential feeding network, which, as a subarray, further forms a 4×4 phased array. A lens is placed above each patch sub array to suppress the grating lobe during the angle scanning. The results show that within ±15° scanning angle, the difference between the main lobe and the grating lobe remains below -11 dB within 25-31GHz. Besides, at broadside, the 3-dB axial ratio bandwidth is 21.4% and the aperture efficiency is above 60% in 19.9% bandwidth.
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