Embedded 3D multi-band antenna with ETS process technology covering LTE/WCDMA/ISM band operations in a smart wrist wearable wireless mobile communication device design
作者： Ming‐An Chung
DOI: 10.1049/IET-MAP.2018.5486
关键词: Antenna (radio) 、 ISM band 、 Broadband networks 、 Base station 、 Wearable technology 、 Code division multiple access 、 UMTS frequency bands 、 Computer science 、 Wearable computer 、 Electrical engineering
摘要: An internal etching for three-dimensional structures (ETS) antenna capable of operating in the 810-960, 1370-1450 and 1710-2630 MHz bands, respectively, long-term evolution (LTE)/wideband code division multiple access (WCDMA)/2.4 GHz industrial, scientific medical (ISM) band operations suitable being embedded within a smart wrist wearable wireless mobile communication device is proposed. The proposed radiation efficiency can achieve 37.8-55.3% from 810-960 MHz, 53.1-92.63% 52.9-93.1% 1710-1630 LTE/WCDMA bands 87.4% ISM without hand phantom free space condition. reduced by half because with lossy material properties. Furthermore, health risk related to exposure electromagnetic radiation, specific absorption rates are evaluated results were far below limits required Federal Communications Commission (FCC) organisation. (3D) multi-band be adapted device. This study breaks pattern that devices must work phones. herein directly communicate carrier base station independently.
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