Investigation of SAR on human head modelling using patch antenna in mobile communication for dual band frequency

Mary, T. Anita Jones; Ravichandran, C.S.; Priyadarshini, S. Jemima; Sugumar, D.

doi:10.1109/interact.2010.5706199

Cited by 5 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mary et. al [19] used a patch antenna operating at 900 MHz and 1800 MHz with a radiated power of 0.32 W to simulate a mobile phone operating on a homogenous spherical representation of the human head. The FEKO program they used for the simulation uses Method of Moments to solve the SAR values.…”

Section: Literature Reviewmentioning

confidence: 99%

Computational Model of the Influence of an 835 MHz Patch Antenna Distance on Specific Absorption Rate (SAR) and Temperature Change in the Human Head

Green¹

2021

iqurcp

View full text Add to dashboard Cite

Human exposure to mobile phone radio frequency (RF) radiation has caused public concern for human health. Mobile phone RF exposure depends on many different parameters. The aim of this study is to examine the effects of both the RF source distance from a human head and of output power levels on the temperature change and the Specific Absorption Rate (SAR) in the head. The peak spatially-averaged SAR over 1 g of tissue is also identified to compare the study results to Health Canada’s Safety Code 6 exposure limits. The SAR and temperature change in the head are simulated in this study using a Specific Anthropomorphic Mannequin (SAM) head model with heterogeneous dielectric properties and a microstrip patch antenna operating at a frequency of 835 MHz. The microstrip patch antenna distance from the head is varied from 0-15mm and it is operated at three different time-averaged output power levels. The simulation is performed using COMSOL Multiphysics software and is solved with the Finite Element Analysis (FEA) method. The results show that both SAR and temperature change in the head model increase as the distance between the head model and the patch antenna decreases. The peak spatially-averaged SAR over 1 g of tissue is found to triple as the phone moves from 4mm from the head to 0mm from the head. The results from this study indicate that to mitigate possible health risks from RF radiation mobile phones should be kept at least 4mm from the head.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Computational Model of the Influence of an 835 MHz Patch Antenna Distance on Specific Absorption Rate (SAR) and Temperature Change in the Human Head

Green¹

2021

iqurcp

View full text Add to dashboard Cite

show abstract

“…The induced SAR decreases linearly as the transmitting device moves away from the head, just as expected. However in regards to frequency, [19] states that the induced SAR is less at higher carrier frequencies (Table V). The transmission power is of less significance, as SAR is measured at maximum transmission power.…”

Section: A the Emulation Of Sar Mpe And Rf Signal Strengthmentioning

confidence: 99%

LTE modem power consumption, SAR and RF signal strength emulation

Musiige¹,

Vincent²,

Anton

2012

2012 IV International Congress on Ultra Modern Telecommunications and Control Systems

View full text Add to dashboard Cite

This paper presents a new methodology for emulating the LTE modem power consumption, emitted SAR and RF signal strength when transmitting an LTE signal. The inputs of the methodology are: modem logical/protocol commands, time advance, near-field specifier, and antenna characteristics. The power emulation model(s) are computed by a two layer 4 × 5 × 1 neural network based on physical power measurements. SAR is emulated by polynomial interpolation models based on FDTD simulations. The accuracies of the mathematical function approximations for the emulation models of power and SAR are 5.19% and 3.6% respectively. The RF signal strength is emulated by an analytical model.

show abstract

An investigation of SAR inside human heart for antenna directivity, surface current variations and effect on antenna frequency in presence of heart

Rashid

Sarkar

Paul

et al. 2016

2016 2nd International Conference on Electrical, Computer &Amp; Telecommunication Engineering (ICECTE)

View full text Add to dashboard Cite

Investigation of SAR on human head modelling using patch antenna in mobile communication for dual band frequency

Cited by 5 publications

References 5 publications

Computational Model of the Influence of an 835 MHz Patch Antenna Distance on Specific Absorption Rate (SAR) and Temperature Change in the Human Head

Computational Model of the Influence of an 835 MHz Patch Antenna Distance on Specific Absorption Rate (SAR) and Temperature Change in the Human Head

LTE modem power consumption, SAR and RF signal strength emulation

An investigation of SAR inside human heart for antenna directivity, surface current variations and effect on antenna frequency in presence of heart

Contact Info

Product

Resources

About