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Showing results for: antenna

Apple iPhone 17 Air Review: Ultra-thin elegance meets near-limit SAR—great iPhone, but don’t confuse compliance with safety

Resources Phone Reviews Mar 5, 2026

The iPhone 17 Air is a design flex: a 5.64 mm ultra-thin iPhone with a gorgeous 6.6-inch Super Retina XDR OLED and A19-class speed. But RF-conscious buyers should pause—its hotspot and simultaneous SAR readings sit essentially at the FCC’s 1.6 W/kg ceiling. It’s a strong phone that demands safer-use discipline.

Effects of exposure to GSM mobile phone base station signals on salivary cortisol, alpha-amylase, and immunoglobulin A.

Research Paper Discussions

Effects of exposure to GSM mobile phone base station signals on salivary cortisol, alpha-amylase, and immunoglobulin A Christoph Augner 1, Gerhard W Hacker, Gerd Oberfeld, Matthias Florian, Wolfgang Hitzl, Jörg Hutter, Gernot Pauser Affiliations Expand PMID: 20708499 DOI: 10.1016/S0895-3988(10)60053-0 Abstract…

Electromagnetic Exposure from RF Antennas on Subway Station Attendant: A Thermal Analysis

Research PubMed: RF-EMF health Jan 28, 2026

This paper reports a multiphysics electromagnetic–thermal simulation of radiofrequency (RF) antenna exposure for a subway station attendant, estimating specific absorption rate (SAR) and temperature rise in the trunk and selected organs at 900, 2600, and 3500 MHz. Using a COMSOL-based model with a detailed human…

Ambient RF-EMF exposure in surgical operating rooms from telecommunication antennas and Wi-Fi sources

Research PubMed: RF-EMF health Jan 22, 2026

This PubMed-listed study measured ambient radiofrequency electromagnetic field (RF-EMF) levels during surgical operations in 15 hospital operating rooms in Albacete, Spain, focusing on contributions from telecommunication antennas and Wi‑Fi. Using an exposimeter logging every 5 seconds across 67 procedures (~120…

Why RF Safe’s TruthCase Refuses the “99% Blocking” Game — and Why That’s the Point

Independent Voices RF Safe Jan 16, 2026

RF Safe argues that “anti-radiation” phone case marketing based on universal “99% blocking” claims is misleading because real-world phone emissions vary with signal conditions, orientation, and how a case affects the antenna. The post positions RF Safe’s TruthCase/QuantaCase as more credible specifically because it…

RF Safe’s Market Position and Industry Skepticism

Independent Voices RF Safe Jan 16, 2026

RF Safe argues that while it has operated since 1998 and emphasizes “physics-based” design and education, the broader anti-radiation phone case market is widely criticized for hype and potentially misleading “blocking” claims. The post says some experts consider the category ineffective or even counterproductive,…

Best Anti‑Radiation Phone Case 2026: Why QuantaCase (RF Safe) Is the Stand‑Out Choice

Resources RF Safe Jan 3, 2026

RF Safe argues that many “anti-radiation” phone cases use misleading marketing (e.g., fabric-swatch tests, vague “FCC tested” claims) and that some designs may cause phones to increase transmit power if they interfere with antennas. The article provides a checklist of red flags (magnets/metal plates, detachable…

Massive assessment of exposure to 5G electromagnetic fields in France: a 5-year synthesis

Research RF Safe Research Library Jan 1, 2026

This paper reports results from a large-scale, multi-phase measurement campaign in mainland France assessing changes in RF exposure associated with 5G deployment from 2020 to 2024. Using more than 24,000 on-ground measurements in direct view of 5G antennas, it finds small average increases in broadband exposure and…

Mobile phone MIMO antenna array miniaturization-based low SAR research in the combined EMF.

Research RF Safe Research Library Jan 1, 2026

This engineering/simulation study evaluates tissue SAR from a smartphone operating under single-frequency versus combined (simultaneous 4G and 5G) RF exposure scenarios using multi-pose human models. It reports that peak SAR in various tissues under multi-frequency exposure was 1.02 to 15.85 times higher than under…

This piece does not argue that radiofrequency (RF) electromagnetic fields “cause” any single disease.

Independent Voices RF Safe Dec 16, 2025

An RF Safe commentary argues that persistent, pulsed “non-native” RF electromagnetic noise can disrupt biological “timing coherence,” leading to downstream “fidelity losses,” particularly in electrically active tissues. It also emphasizes that smartphones are adaptive RF systems that change transmit power and…

How non‑native electromagnetic fields, biological timing, and policy lock in converge — and why the Light Age is the only coherent exit

Independent Voices RF Safe Dec 13, 2025

RF Safe argues that modern radiofrequency (RF) exposures are complex (adaptive, nonlinear, geometry- and near-field–dependent) and that biological effects, if any, may be better understood as “timing/coherence” disruptions rather than direct single-cause disease claims. The piece cautions against simplistic “percent…

The True Legacy of RF Safe as a Pioneer in EMF Safety Advocacy: Beyond Bias

Independent Voices RF Safe Nov 28, 2025

This RF Safe article argues that the organization’s EMF safety advocacy should not be dismissed as “biased” or “commercially motivated,” framing its work as rooted in its founder’s personal experience and long-term activism. It recounts founder John Coates’ claim that prenatal RF exposure contributed to his infant…

Beyond Bias: The True Legacy of RF Safe as a Pioneer in EMF Safety Advocacy

Independent Voices RF Safe Nov 28, 2025

This RF Safe article defends the organization against accusations of bias, framing its EMF safety advocacy as rooted in founder John Coates’ personal tragedy and long-term efforts in product development, research synthesis, and policy reform. It claims RF Safe helped drive an FCC rule change related to antenna design…

TruthCase™ by RF SAFE QuantaCase

Resources RF Safe Nov 27, 2025

RF Safe promotes its TruthCase™ (QuantaCase®) phone case as a "training tool" and "physics-first" product intended to reduce RF exposure through correct phone orientation and design, while criticizing many "anti-radiation" cases as potentially increasing exposure by detuning antennas. The post also argues that…

Intercomparisons of computed epithelial/absorbed power density & temperature rise in anatomical human face models under localized exposures at 10 & 30 GHz

Research RF Safe Research Library Jan 1, 2025

This dosimetry intercomparison evaluated epithelial/absorbed power density and temperature rise in two high-resolution anatomical human face models under localized antenna exposures at 10 and 30 GHz. The study reports a statistical correlation between spatially averaged absorbed power density and temperature rise…

Associations between Individual and Geospatial Characteristics and Power of 4G Signals Received by Mobile Phones

Research RF Safe Research Library Jan 1, 2025

This exposure assessment study analyzed smartphone-logged 4G LTE RSSI and GPS data from adults in France to identify determinants of downlink signal strength. RSSI varied with geospatial factors (distance to antennas, antenna density, urbanicity) and time of day, and was also influenced by technical smartphone…

Numerical analysis of the thermal effects on adult with brain pacemaker implantation exposed to WIFI antennas

Research RF Safe Research Library Jan 1, 2025

This numerical study modeled RF exposure from WiFi/5G-type antennas near a 3D brain model with implanted brain pacemakers relevant to Parkinson’s disease. SAR and temperature increases were reported to remain below ICNIRP 2020 limits across modeled conditions, with maxima at a 90° antenna-to-brain angle. Despite…

Traceable Assessment of the Absorbed Power Density of Body Mounted Devices at Frequencies Above 10 GHz

Research RF Safe Research Library Jan 1, 2025

This paper presents a traceable experimental dosimetry method to measure absorbed power density (APD) from body-mounted wireless devices at frequencies above 10 GHz. It combines a miniaturized broadband probe, a composite skin-equivalent phantom, and reconstruction/calibration procedures, with validation using…

Assessing exposure from different vehicular antennas in military applications: a computational study

Research RF Safe Research Library Jan 1, 2025

This computational study modeled electromagnetic exposure for military personnel near vehicular communication antennas across HF, VHF, and UHF scenarios. All simulated configurations reportedly met ICNIRP Basic Restrictions, though some exceeded ICNIRP Reference Levels in certain positioning and frequency…

Exploring research trends in health effects of 5G antennas: a bibliometric analysis

Research RF Safe Research Library Jan 1, 2025

This paper presents a bibliometric analysis of Web of Science literature (2012–2025) on potential health effects related to 5G antennas. It reports a marked increase in publications in the past five years, with substantial attention to dosimetric metrics (SAR and power density) and their regulatory limits. The…

Impact of Anthropomorphic Shape and Skin Stratification on Absorbed Power Density in mmWaves Exposure Scenarios

Research RF Safe Research Library Jan 1, 2025

This dosimetry study used FDTD simulations at 28 GHz to evaluate how skin stratification and anthropomorphic modeling affect absorbed power density (APD) estimates. APD was higher with stratified skin than with homogeneous skin for a wearable patch antenna (16%–30% higher), while plane-wave differences were smaller (

13.56 MHz RFID Module - From Application to Process Modelling and Effects on Human Health

Research RF Safe Research Library Jan 1, 2025

This paper presents an application and numerical process modelling of a 13.56 MHz RFID module, including how nearby tags/cards and their positioning affect antenna characteristics. It also considers RFID operation near human tissues and discusses potential health impacts from prolonged EMF exposure at 13.56 MHz. The…

A novel approach for assessments of radiofrequency electromagnetic fields exposure in buildings near telecommunication infrastructure

Research RF Safe Research Library Jan 1, 2025

This paper proposes a new methodology to better assess indoor RF-EMF exposure in buildings near telecommunication base station antennas by refining measurement-point selection. Implemented in four multi-storey buildings in Natal, Brazil, indoor electric field peaks and averages were reported to be substantially…

Effect of elevation on cumulative radiofrequency exposure from multiple communication towers

Research RF Safe Research Library Jan 1, 2025

This exposure assessment measured RF power density across different floors of a high-rise university building using a spectrum analyser and log-periodic antenna. Power density decreased from the ground to the third floor but peaked on the fourth (top) floor. The 900 MHz band showed the highest reported power density…

Deduction of Extrapolation Factors in Realistic Scenarios for In-Situ Assessment of 5G Base Stations

Research RF Safe Research Library Jan 1, 2025

This conference paper examines extrapolation factors used for in-situ EMF exposure assessment of 5G base stations in realistic indoor and outdoor scenarios. Using both frequency-selective and code-selective measurement approaches under varying traffic conditions, it reports substantial variability in extrapolated…

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