A Wideband Ultra-Thin Differential Loop-Fed Patch Antenna for Head Implants

A Wideband Ultra-Thin Differential Loop-Fed Patch Antenna for Head Implants
Title:
A Wideband Ultra-Thin Differential Loop-Fed Patch Antenna for Head Implants
Other Titles:
IEEE Transactions on Antennas and Propagation
Keywords:
Publication Date:
13 April 2015
Citation:
T. S. P. See, X. Qing, W. Liu and Z. N. Chen, "A Wideband Ultra-Thin Differential Loop-Fed Patch Antenna for Head Implants," in IEEE Transactions on Antennas and Propagation, vol. 63, no. 7, pp. 3244-3248, July 2015. doi: 10.1109/TAP.2015.2422354
Abstract:
An ultra-thin differential patch antenna is proposed for head implants. Through the proximity coupling between the rectangular patch and the loop structure fed by a differential microstrip line, an antiphase mode is excited, which doubles the bandwidth of an aperture-coupled rectangular patch antenna. Moreover, the directional radiation allows maximum energy to be directed to the receiver and lowers the specific absorption rate (SAR). An antenna prototype with an overall size of 24 × 10 × 0.95 mm3 exhibits the -10 dB reflection bandwidth of 4.1-4.5 GHz, directivity more than 5 dBi, and gain higher than -8 dBi at the boresight. The maximum transmit power of 28 mW is permitted for the SAR limit of 1.6 W/kg across the impedance bandwidth.
License type:
PublisherCopyrights
Funding Info:
Description:
(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
ISSN:
0018-926X
1558-2221
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