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Showing posts from July, 2013

The New world of Plasma Antennas

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The New world of Plasma Antennas..   The future of high-frequency, high-speed wireless communications could very well be plasma antennas capable of transmitting focused radio waves that would quickly dissipate using conventional antennas..   Transmission and reception of electromagnetic waves have become an integral part of the present day civilisation. Antenna is an essential device for this process. It is a transducer that transmits or receives electromagnetic waves. In other words, antennas convert electromagnetic radiation into electric current, or vice versa. Antennas are used in systems such as radio and television broadcasting, point-to-point radio communication, wireless LAN, cellphones, radar, and spacecraft communication. Antennas are most commonly employed in air or outer space, but can also be operated underwater or even through soil and  rock at certain frequencies for short distances.   Growing need for speed of communication network along with data handling capacity are

India Turning into R&D Powerhouse

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India Turning into R&D Powerhouse....... More and more MNCs are flocking to India to set up an R&D base. Let’s see what makes India a perfect destination for carrying out research activities from the standpoint of technology and innovation........... Today, India is looked at as one of the cheapest R&D destinations with highly talented engineers. The setting up of an R&D base by an increasing number of MNCs is a testimony to this fact. These R&D setups either serve the local market or help the parent company deliver new generation of products faster to the global market. For instance, one of the primary research areas for Philips Lighting India centre is to develop products that can suit Indian operating conditions. In particular, embedded systems related work is growing fast and maturing to focus on enabling value-added devices. Almost every major international firmfrom Intel to Texas Instruments (TI) has its R&D or design lab for microprocessors in India. Tele

Designing A Cost-Effective and Versatile Home Area Network Device

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Designing A Cost-Effective and Versatile Home Area Network Device The device proposed here integrates seamlessly with a home area network and keeps a tab on the energy consumption and operation of electrical equipment while acting as a low-cost energy meter.  The sky-rocketing cost of energy production has necessitated a more efficientenergy consumption process. This has brought revolution in electrical equipment manufacturing and energy metering infrastructure. Home area network (HAN) is an advanced electrical ecosystem in which a smart utility meter and HAN devices communicate with each other to control the energy consumption profile. Armed with the latest technological advancements in the fieldof energy utilisation, HANs are ready to supplant the traditional electrical ecosystems at home. Fig. 1: Application diagram of HAN device A basic HAN device has a two-way communication link with a utility meter and optionally with other devices in a HAN ecosystem, sharing energy consumption

Real-time temperature sensors

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Working With Real time Temperature Sensors: Real-time temperature monitoring with dedicated temperature sensors ensure that today’s smaller and faster systems operate in the safe thermal zone. The new-generation sensors monitor internal and external components’ hot spots with pinpoint accuracy. Availability of accurate, low-cost and easy-to-use sensor iCs permits designers to make on-chip temperature measurements to squeeze the maximum performance from their systems Fully autonomous wireless temperature sensor powered by a vibrational energy harvester Temperature is the most often measured environmental quantity and many biological, chemical, physical, mechanical and electronic systems are affected by temperature. Some processes work well only within a narrow range of temperatures. So proper care must be taken to monitor and protect the system. When temperature limits are exceeded, electronic components and ciruits may be damaged by exposure to high temperatures. Temperature sensing he