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Open cellular standards will drive ‘massive IoT’ uptake

Several technologies are vying for a slice of the LPWAN sector that will underpin the IoT, but only low power LTE promises to support rapid mass deployment

The Internet of Things (IoT) will require several wireless technologies if it’s to meet its potential. For example, Bluetooth low energy or IEEE 802.15.4 are good choices for battery-powered sensors sending data to the Cloud via a building’s Local Area Network (LAN). But for sensors that are constantly moving, or are remote from a LAN, short-range wireless technologies run into problems.


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Qualcomm Evaluates Drones on LTE Networks

Qualcomm engineers have recently completed initial testing of drones on commercial 4G LTE networks at the Qualcomm UAS Flight Center in San Diego. They evaluated key performance indicators (KPIs) such as coverage, signal strength, throughput, latency, and mobility under various scenarios on commercial LTE networks.


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Paving the Way for 5G Wireless Networks

For circuit designers, one challenge will be in knowing where to start, which means, for millimeter-wave frequencies, knowing what types of printed-circuit-board (PCB) material characteristics are the most important at higher frequencies.


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Changing Temperature Can Change Circuit Performance

Circuit materials are evaluated by a number of different parameters, including dielectric constant (Dk) and dissipation factor (Df). Those two parameters also have temperature-based variants that provide insight into the expected behavior of a circuit material with changes in temperature, notably the thermal coefficient of dielectric constant (TCDk) and the thermal coefficient of dissipation factor (TCDf).


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