Another strategy is to get a cellphone that has a low specific absorption rate (SAR) rating. (SAR is the amount of radio frequency energy absorbed by the body when the handset is used.) Here, according to statistics compiled by our friends at CNET, are the 10 cellphones with the lowest...
Happiness is a low-SAR cell phone: wherever you are today, you can be connected. But can you do so safely? (Dealing with EMC).Lecklider, TomEvaluation Engineering
SAR is measured in W/kg, or mW/g, as an equivalent. In the USA, the SAR limit for cell phones is 1.6 W/kg, averaging over 1 g of tissue. The SAR limit in Europe is 2.0 W/kg, averaging over 10 g of tissue. If the phone satisfies the US requirements, it will usually also fu...
The aim of this article is to design a new microstrip-fed patch antenna for cell phone applications. The antenna design is composed of slots and FR-4 dielectric substrate fed by a partial ground plane and a microstrip line. The user’s effects on antenna performances are also analyzed using...
The SAR11 bacteria are characterized by having very small genome sizes, in the 1.4 to 1.6 Mb range, and extremely small cell volumes, which is suggested to result from selection to enhance the surface to volume ratio [7–9]. The SAR11 group of aquatic bacteria contains a freshwater clade ...
The first is a fast and extremely compact successive approximation analog-to-digital converter (SAR ADC), designed for consumer electronics, such as mobile phones, operating in the below-6GHz frequency bands (4G/5G). Secondly, imec developed a 60GHz front-end with radio frequency (RF) phase ...
Especially with cell phones, several researchers have reported better results when weighting observations by signal quality rather than elevation. I also suspect that incorporating the receiver quality metrics in addition to the other factors should be helpful but have not proven this in practice, ...
devices, devices that can run on a coin cell battery for months or years. Typical applications that uses BLE are health care, fitness trackers, beacons, smart home, security, entertainment, proximity sensors, Industrial and automotive. BLE ecosystem is centered around Smart phones, tablets and ...
T Harms,B Banks,SS Sarvestani,F Bastianini 摘要: This paper describes the design and testing of a wireless sensor network based on the SmartBrick, a low-power SHM device developed by the authors. The SmartBrick serves as the base station for the network, which utilizes additional sensor ...
Regarding exposure to radio equipment, in particular mobile phones, the Specific Absorption Rate (SAR) is limited to 2 W/kg for the head and body, and 4 W/kg for the limbs. We only sell phones that comply with current standards. Exposure to antennas is expressed in volts per metre (V/...