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The components discussed in this article are based on RF MEMS switches, switched capacitors and varactors. These components can be used instead of FET and HEMT switches (FET and HEMT transistors in common gate configuration), and PIN diodes.
Smart antennas (also known as adaptive array antennas, digital antenna arrays, multiple antennas and, recently, MIMO) are antenna arrays with smart signal processing algorithms used to identify spatial signal signatures such as the direction of arrival (DOA) of the signal, and use them to calculate beamforming vectors which are used to track and locate the antenna beam on the mobile/target.
Size comparison of chip compared to a Canadian penny. A contactless smart card is characterized as follows: Dimensions are normally credit card size. The ID-1 of ISO/IEC 7810 standard defines them as 85.60 × 53.98 × 0.76 mm (3.370 × 2.125 × 0.030 in).
The IPO of the company on the NASDAQ stock market occurred on June 3, 1997 under the symbol RFMD. [9] At the time of the IPO, the company was a pioneer and leader in the use GaAs HBT process technology for commercial wireless applications, which had benefits in power efficiency, linearity, complexity and size, while also having expertise in older GaAs MESFET and silicon polar transistor ...
Silver Spring Networks was founded in July 2002 as Real Time Techomm in Butler, Wisconsin, near Milwaukee. [6] [7] Original founders included Eric Dresselhuys who had worked on related technology since 1995, and Keith Burge.
ICS Africa; Imperial Civil Service; Indian Civil Service; Indian National Congress (Socialist) Institute of Chartered Shipbrokers; Institute for Computational Sustainability, a Cornell-based institute in the United States
In contrast to other types of skimming such as ATM skimming or hacking an online merchant web page, RFID skimming requires little or no technical expertise. In order to execute ATM skimming, the criminal needs to custom build a device, then place that device inside an ATM and later pick up the device after the victims have used it.
A cognitive radio (CR) is a radio that can be programmed and configured dynamically to use the best channels in its vicinity to avoid user interference and congestion. Such a radio automatically detects available channels, then accordingly changes its transmission or reception parameters to allow more concurrent wireless communications in a given band at one location.