Please use this identifier to cite or link to this item:
https://doi.org/10.2528/PIERC13111108
DC Field | Value | |
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dc.title | Bandwidth improvement of reflectarrays using single-layered double concentric circular ring elements | |
dc.contributor.author | Guo, L. | |
dc.contributor.author | Tan, P.-K. | |
dc.contributor.author | Chio, T.-H. | |
dc.date.accessioned | 2016-10-22T07:45:39Z | |
dc.date.available | 2016-10-22T07:45:39Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Guo, L.,Tan, P.-K.,Chio, T.-H. (2014). Bandwidth improvement of reflectarrays using single-layered double concentric circular ring elements. Progress In Electromagnetics Research C 46 : 91-99. ScholarBank@NUS Repository. <a href="https://doi.org/10.2528/PIERC13111108" target="_blank">https://doi.org/10.2528/PIERC13111108</a> | |
dc.identifier.issn | 19378718 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/128903 | |
dc.description.abstract | In an effort to improve the bandwidth of the single layer reflectarray, this paper investigates the use of double concentric circular ring elements arranged in a range of sub-wavelength grids on a single layer of substrate. Compared to the traditional λ/2 grid arrangements, when the radiating elements are arranged in grids less than λ/2, the reflected phase is more uniform over a wider frequency bands when radiating elements' parameters are varied; albeit with a reduced reflected phase range. The double concentric circular ring elements used here also allow an additional degree-of-freedom to improve the bandwidth. A comprehensive investigation on reflectarrays' performance with various grid spacings is conducted and the trade-off between the reflectarray gain and bandwidth is also discussed. Based on the concentric ring element, four offset-fed 0:43m×0:43m reflectarrays centered at 10 GHz with various element periodicities, namely λ/2, λ/3, λ/4 and λ/5 grids, are designed and developed. The measured results show that among the four reflectarrays, the one with λ/4 grid spacing achieves the broadest 2-dB gain bandwidth of 33% with an aperture efficiency of 36.2%. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.2528/PIERC13111108 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | TEMASEK LABORATORIES | |
dc.description.doi | 10.2528/PIERC13111108 | |
dc.description.sourcetitle | Progress In Electromagnetics Research C | |
dc.description.volume | 46 | |
dc.description.page | 91-99 | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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