Comparison of a monopole and a PIFA handset antenna in the presence of the human head

Abstract

We reascertained a family in which first cousins were affected by Angelman syndrome and Prader–Willi syndrome. A paracentric inversion of 15q11‐q15 had previously been reported in this family but we show, using fluorescence in situ hybridization (FISH), that the rearrangement segregating in this family is not a paracentric inversion but an inverted intrachromosomal insertion, inv ins(15)(q15q13q11.2). We also describe a further recombinant resulting in a maternal duplication of the Prader–Willi/Angelman critical region. This family illustrates the importance of distinguishing paracentric inversions from intrachromosomal insertions. © 2004 Wiley‐Liss, Inc.

Analysis on the effect of the distances and inclination angles between human head and mobile phone on SAR

“…A dual band (GSM 900 MHz and 1800 MHz) planer inverted F-antenna (PIFA) [14,15] with circuit board was used in our simulations. The antenna design was collected from a build-in project of CST MWS Studio 2013.…”

Wearable slot antenna at 2.45 GHz for off‐body radiation: Analysis of efficiency, frequency shift, and body absorption

“…This does not allow the evaluation of power absorbed by different parts of the body, since SAR results give information about maximum absorption averaged over 10 g. The power absorbed in tissues (Eq. 2) was found to be the best parameter for measuring total absorption in parts of the body [Risco et al, 2012]. We demonstrated that two similar values of SAR can be related to very different values of head absorption.…”

“…The power absorbed in human tissues is another key aspect of interest, as transmitters operate in close proximity to the body. Evaluation of the specific absorption rate (SAR) is crucial for compliance with safety levels assigned by international standards [ICNIRP, ; IEEE, ], and is often investigated [Anguera et al, ; De Santis et al, ; Risco et al, ; Soh et al, ]. Designing efficient antennas while maintaining a low SAR is one of the challenges in body area networks.…”

Evolvable Skin Electronics by In Situ and In Operando Adaptation

“…[29,30] Conventionally, an intensive simulation is required to optimize the antenna structure. [17,18,20] In contrast, SOA allows continuous real-time scanning of various designs to obtain the optimal antenna structure, which can be actively optimized according to the body part (e.g., hand, wrist, chest) and user characteristics.…”