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Innovation technology provides a new way of living including the use of mobile devices. Mobile devices are almost always present in the daily live of global communities now. These Information Technology Eqipments (ITE) products usually remain in ‘standby mode’ for the whole day. It is necessary to perform the electromagnetic fields testing to these ITE products in order to examine the electromagnetic...
Many research results on biological effects of cellular phone radiations agree that the main possible hazards are the thermal effects while some other results reveal that the thermal effects due to handsets radiation are negligible. Few can deny the fact and puzzle that some users did suffer from such symptoms as headaches due to cellular phones. This paper provides a potential cause or possible answer...
The mobile handset is well established as a business and consumer device, expanding beyond the foundation built on earlier mobile handset technology. The functions and capabilities of the handset are continually evolving. Handset providers, application developers and users are putting ever greater demands on handsets which simultaneously strain limited battery power and require higher data transfer...
In this issue of the Integrated Circuits for Communications Series, we continue the theme of integrated circuit design for multi-standard radios. We have selected two papers covering this area, which is drawing significant attention from industry as well as research communities worldwide.
Multimode multiband (MMMB) power amplifiers have been developed in recent years for next generation mobile handsets and tablets applications. Designers face new and greater challenges due to more stringent requirements in functionality, performance, size and cost. This paper will discuss the motivations that drive MMMB PA development and the requirements, challenges and considerations relevant to...
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