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How coarse is indeed coarse in electrically large reflectarray smart antennas.

Ahmad, G*; Brown, T W C*; Underwood, C I*; Loh, T H (2017) How coarse is indeed coarse in electrically large reflectarray smart antennas. In: 2017 International Workshop on Electromagnetics (iWEM), 30 May - 1 June 2017, London, UK.

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Millimeter wave (mm-wave) bands are becoming potentially attractive candidates for next generation communication systems. It is envisioned that high gain smart antennas will be one of the key enabling technologies for such systems. At mm-wave bands, where electrical size of an individual antenna becomes very small, the inclusion of reconfigurable mechanism in antenna becomes a great challenge due to real estate constraints. In these scenarios a designer have to decide on how many number of bits in a phase shifter for antenna beam steering shall result in an optimum design. This contribution addresses the issue of phase quantization in mm-wave high gain reflectarray smart antennas to achieve an optimum performance. Implementing coarse phase quantization greatly reduces the complexity at mm-wave bands. A case study is presented to highlight the effects of coarse phase quantization using various numbers of bits.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Keywords: Smart antennas, reflectarray, phase quantization, high gain antennas, millimeter waves
Subjects: Electromagnetics
Electromagnetics > Wireless Communications
Divisions: Engineering, Materials & Electrical Science
Identification number/DOI: 10.1109/iWEM.2017.7968807
Last Modified: 02 Feb 2018 13:12
URI: http://eprintspublications.npl.co.uk/id/eprint/7660

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