TY - GEN
T1 - Ground plane booster antenna technology
T2 - 6th European Conference on Antennas and Propagation, EuCAP 2012
AU - Andújar, Aurora
AU - Anguera, Jaume
AU - Picher, Cristina
AU - Puente, Carles
PY - 2012
Y1 - 2012
N2 - Performance of handset antennas is strongly affected by the user interaction, namely the close proximity of the human head in talking position considerably affects the behavior of a radiating system. However, different radiating systems are not equally affected by the presence of the human head since the effects are highly dependent on the principle of operation associated to each radiating system. This paper is focused on assessing human head effects regarding different radiating systems concerning two aspects: functional (reflection coefficient, efficiency, and radiation patterns) and biological (Specific Absorption Rate (SAR)). Particularly, the paper concentrates on comparing the robustness of a non-resonant ground plane booster based solution with resonant structures commonly used in current handsets. Four prototypes are measured in order to compare their performance: a dual-band PIFA, a hexa-band PIFA with a slotted ground plane, a set of coupled monopoles, and a compact radiating system based on the excitation of the ground plane mode through a set of non-resonant ground plane boosters. A figure of merit relating the antenna efficiency with the SAR values is proposed for comparison purposes. The study demonstrates the robustness of the compact radiating system.
AB - Performance of handset antennas is strongly affected by the user interaction, namely the close proximity of the human head in talking position considerably affects the behavior of a radiating system. However, different radiating systems are not equally affected by the presence of the human head since the effects are highly dependent on the principle of operation associated to each radiating system. This paper is focused on assessing human head effects regarding different radiating systems concerning two aspects: functional (reflection coefficient, efficiency, and radiation patterns) and biological (Specific Absorption Rate (SAR)). Particularly, the paper concentrates on comparing the robustness of a non-resonant ground plane booster based solution with resonant structures commonly used in current handsets. Four prototypes are measured in order to compare their performance: a dual-band PIFA, a hexa-band PIFA with a slotted ground plane, a set of coupled monopoles, and a compact radiating system based on the excitation of the ground plane mode through a set of non-resonant ground plane boosters. A figure of merit relating the antenna efficiency with the SAR values is proposed for comparison purposes. The study demonstrates the robustness of the compact radiating system.
KW - SAR
KW - ground plane booster
KW - ground plane mode
KW - handset antenna
KW - human head interaction
KW - multiband
UR - http://www.scopus.com/inward/record.url?scp=84862884065&partnerID=8YFLogxK
U2 - 10.1109/EuCAP.2012.6206045
DO - 10.1109/EuCAP.2012.6206045
M3 - Conference contribution
AN - SCOPUS:84862884065
SN - 9781457709180
T3 - Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012
SP - 2745
EP - 2749
BT - Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012
Y2 - 26 March 2012 through 30 March 2012
ER -