SAR Measurements for Several Two Elements Phased Antenna Array Handsets

Moustafa, J.; Abd-Alhameed, R.A.; Zhou, D.; See, C.H.; McEwan, N.J; Excell, P.S.; Ramli, K.N.; Abidin, Z.Zainal

Abstract

In recent years, electromagnetic dosimetry has been increasingly oriented towards the evaluation of energy deposition in the human body due to an exposure to cellular telephones. In this case of near-field exposure, the significant dosimetric parameters are the specific absorption rate (SAR). This kind of definition causes a technical problem, because the SAR inside a person cannot be measured. Therefore, some indirect way is needed to establish the compliance of a certain device with the basic restrictions. This paper therefore mainly deals with SAR measurement for phased antenna array including some antenna prototypes. Some of these measurements on one other form of the array (using helices) have been only optimised empirically. The measurements use the dosimetric techniques already developed for the compliance testing of mobile telephones. The experimental approach is then described, based on invasive SAR measurements by means of miniaturised E-field probes inside a control phantom. The relative measured SAR values between the uses of phased antenna array to the conventional single antenna handset are presented.

• Presentation Conference Type: Conference Paper (Published)
• Conference Name: European Conference on Antennas and Propagation (Eucap 2009)
• Start Date: Mar 23, 2009
• End Date: Mar 27, 2009
• Acceptance Date: Jan 26, 2009
• Online Publication Date: Jun 5, 2009
• Publication Date: Mar 23, 2009
• Deposit Date: Jun 13, 2019
• Publisher: Institute of Electrical and Electronics Engineers
• Pages: 2201-2204
• Series Title: Proceedings of the European Conference on Antennas and Propagation
• Series ISSN: 2164-3342
• Book Title: 2009 3rd European Conference on Antennas and Propagation
• ISBN: 9781424447534
• Keywords: antenna phased arrays, antenna testing, cellular radio, electromagnetic wave absorption, helical antennas
• Public URL: http://researchrepository.napier.ac.uk/Output/1873925