Finger effect on 60 GHz user device antennas

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Abstract

In this paper, the loading effect and far-field pattern degradation caused by a finger is studied for antennas that can be considered for future user devices operating at 60 GHz. It is found that if a finger is located closer than 2 mm to the antenna, the antenna matching is severely detuned and the antenna radiation efficiency is degraded. For patch and dipole antennas, the far-field radiation behind the finger is attenuated by 10-24 dB with the finger 10 mm from the antenna, and up to 18-25 dB for finger distance of 3 mm. For a 2×2 patch array, the attenuation is slightly higher at 12-25 dB with the finger distance of 10 mm, increasing to 25-34 dB with the finger distance of 3 mm. If the array is beam-steered when the finger is close to the antenna, it is shown that the broadside gain can be improved by directing the beam towards the sides of the finger.

Details

Original languageEnglish
Title of host publication2016 10th European Conference on Antennas and Propagation, EuCAP 2016
Publication statusPublished - 31 May 2016
MoE publication typeA4 Article in a conference publication
EventEuropean Conference on Antennas and Propagation - Davos, Switzerland
Duration: 10 Apr 201615 Apr 2016
Conference number: 10

Publication series

NameProceedings of the European Conference on Antennas and Propagation
ISSN (Electronic)2164-3342

Conference

ConferenceEuropean Conference on Antennas and Propagation
Abbreviated titleEuCAP
CountrySwitzerland
CityDavos
Period10/04/201615/04/2016

    Research areas

  • 60 GHz, finger loading, human shadowing, Millimeter waves, mmWave

ID: 6761919