TY - GEN
T1 - Ground plane boosters to provide multi-band operation in wireless handheld devices
AU - Andujar, Aurora
AU - Anguera, Jaume
AU - Puente, Carles
PY - 2011
Y1 - 2011
N2 - Recent demand for multifunctional wireless devices has increased the challenge for the antenna designers, who has to address it by providing small antennas able to operate in multiple communication standards. This paper proposes a new generation of radiating systems capable of providing multi-band operation without the need of including a dedicated antenna. The solution is based on the excitation of a structure already existing in any wireless handheld device, the ground plane. Said excitation is carried out through a pair of boosters with dimensions 5 mm 5 mm 5 mm, especially designed to transfer the maximum power to the efficient ground plane radiation mode. In addition, a radiofrequency system is combined with the booster-based radiating structure in order to provide penta-band operation. The feasibility of the proposal has been tested by electromagnetic simulations as well as by experimental measurements. Furthermore the human head interaction concerning Specific Absorption Rate (SAR) has been analyzed and a proposal for its reduction is presented. As a result a promising standard solution for a radiating system capable to operate in the main communication standards GSM850, GSM900, DCS, PCS and UMTS is provided with a volume reduction factor around 20 compared with current technologies.
AB - Recent demand for multifunctional wireless devices has increased the challenge for the antenna designers, who has to address it by providing small antennas able to operate in multiple communication standards. This paper proposes a new generation of radiating systems capable of providing multi-band operation without the need of including a dedicated antenna. The solution is based on the excitation of a structure already existing in any wireless handheld device, the ground plane. Said excitation is carried out through a pair of boosters with dimensions 5 mm 5 mm 5 mm, especially designed to transfer the maximum power to the efficient ground plane radiation mode. In addition, a radiofrequency system is combined with the booster-based radiating structure in order to provide penta-band operation. The feasibility of the proposal has been tested by electromagnetic simulations as well as by experimental measurements. Furthermore the human head interaction concerning Specific Absorption Rate (SAR) has been analyzed and a proposal for its reduction is presented. As a result a promising standard solution for a radiating system capable to operate in the main communication standards GSM850, GSM900, DCS, PCS and UMTS is provided with a volume reduction factor around 20 compared with current technologies.
UR - http://www.scopus.com/inward/record.url?scp=79959644696&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:79959644696
SN - 9788882020743
T3 - Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011
SP - 599
EP - 603
BT - Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011
T2 - 5th European Conference on Antennas and Propagation, EUCAP 2011
Y2 - 10 April 2011 through 15 April 2011
ER -