Antenna measurement — techniques refers to the testing of antennas to ensure that the antenna meets specifications or simply to characterize it. Typical parameters of antennas are gain, radiation pattern, beamwidth, polarization, and impedance.The antenna pattern is… … Wikipedia
Crossed field antenna — A crossed field antenna, or CFA, is a type of antenna for long and mediumwave broadcasting, patented in 1986, which was claimed to have the same efficiency as a conventional antenna but only one tenth the overall height. The invention was… … Wikipedia
Near-field scanner — Electromagnetic near field scanner could be defined as a measurement system to determine a spatial distribution of an electrical quantity provided by a single or multiple field probes acquired in the near field region of a device under test… … Wikipedia
Electromagnetic near-field scanner — could be defined as a measurement system to determine a spatial distribution of an electrical quantity provided by a single or multiple field probes acquired in the near field region of a device under test possibly accompanied by the associated… … Wikipedia
Near field communication — An NFC enabled mobile phone interacting with a SmartPoster Near field communication, or NFC, allows for simplified transactions, data exchange, and wireless connections between two devices in proximity to each other, usually by no more than a few … Wikipedia
Scalar field theory (pseudoscience) — For the quantum mechanical scalar field theory which is a field theory of spinless particles, see Scalar field theory Scalar field theory (SFT) is a set of theories in a model which posits that there is a basic mechanism that produces the… … Wikipedia
electric field — Elect. a vector quantity from which is determined the magnitude and direction of the force (electric force) on a charged particle due to the presence of other charged particles, accelerated charged particles, or time varying currents. Symbol: E… … Universalium
Deal Test Site — The Deal Test Site (now Joe Palaia Park) is located in Ocean Township, New Jersey. The Joe Palaia Park was originally started as the Foxburst Farm, a 63 acre (250,000 m2) tract which is now the southern portion of the park. It was purchased by… … Wikipedia
Near Field Communication — or NFC, is a short range high frequency wireless communication technology which enables the exchange of data between devices over about a 10 centimetre (around 4 inches) distance.Fact|date=July 2008 The technology is a simple extension of the ISO … Wikipedia
Wide-field Infrared Survey Explorer — (WISE) WISE prior to its mission into orbit … Wikipedia
Laser Interferometer Space Antenna — La mission LISA (de l anglais Laser Interferometer Space Antenna), est un projet commun ESA/NASA, destiné à l observation des ondes gravitationnelles de basse fréquence depuis l espace. Sa mise en service est prévue pour 2020. Il s agira du… … Wikipédia en Français
