How coarse is too coarse in electrically large reflectarray smart antennas?

Ahmad, Ghulam, Brown, Tim, Underwood, Craig and Loh, Tian Hong (2017) How coarse is too coarse in electrically large reflectarray smart antennas? In: 2017 International Workshop on Electromagnetics: Applications and Student Innovation Competition, 30 May - 01 Jun 2017, London, United Kingdom.

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Abstract

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 a reconfigurable mechanism in the antenna becomes a great challenge due to real estate constraints. In these scenarios a designer has to decide on the number of bits in a phase shifter for antenna beam steering which will 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 (Conference Paper)
Divisions :	Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :	Name Email ORCID Ahmad, Ghulam g.ahmad@surrey.ac.uk UNSPECIFIED Brown, Tim T.Brown@surrey.ac.uk UNSPECIFIED Underwood, Craig C.Underwood@surrey.ac.uk UNSPECIFIED Loh, Tian Hong UNSPECIFIED UNSPECIFIED
Date :	7 July 2017
Identification Number :	10.1109/iWEM.2017.7968807
Copyright Disclaimer :	© 2017 IEEE
Uncontrolled Keywords :	Quantization (signal); Reflector antennas; Antenna arrays; Bandwidth; Antenna radiation patterns; Phase shifters; Smart antennas; Reflectarray; Phase quantization; High gain antennas; Millimeter waves
Depositing User :	Clive Harris
Date Deposited :	24 Jul 2017 12:49
Last Modified :	24 Jul 2017 12:49
URI:	http://epubs.surrey.ac.uk/id/eprint/841731

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