Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… … Wikipedia
Radio transmitter design — In plate modulation systems the voltage delivered to the stage is changed. As the power output available is a function of the supply voltage, the output power is modulated. This can be done using a transformer to alter the anode (plate) voltage.… … Wikipedia
radio — /ray dee oh /, n., pl. radios, adj., v., radioed, radioing. n. 1. wireless telegraphy or telephony: speeches broadcast by radio. 2. an apparatus for receiving or transmitting radio broadcasts. 3. a message transmitted by radio. adj. 4. pertaining … Universalium
Radio electronics — * For the magazine, see Radio Electronics Radio electronics is the sub field of electrical engineering concerning itself with the class of electronic circuits which receive or transmit radio signals.Typically such circuits must operate at radio… … Wikipedia
Electromagnetic shielding — cages inside a disassembled mobile phone. Electromagnetic shielding is the process of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive and/or magnetic materials. Shielding is typically applied… … Wikipedia
RF Shielding — [Abk. für Radio Frequency Shielding, dt. »Hochfrequenzabschirmung«], Abschirmung … Universal-Lexikon
Universal Software Radio Peripheral — The Universal Software Radio Peripheral (USRP) is a high speed USB based board for making software radios. The USRP is intended to be a comparatively inexpensive hardware device facilitating the building of a software radio. The USRP has an open… … Wikipedia
Naval Radio Transmitter Facility Grindavik — ( short NRTF Grindavik) is a transmission facility of the US Navy at Grindavík, maintained by the N62 Division. It is active on shortwave and longwave, there under the callsign TFK on 37.6 kHz. Naval Radio Transmitter Facility Grindavik had… … Wikipedia
Superconducting Radio Frequency — (SRF) science and technology involves the application of electrical superconductors to radio frequency devices. The ultra low electrical loss of the superconductor yields RF resonators with extremely high quality factors, or Q . For example, it… … Wikipedia
Coaxial cable — RG 59 flexible coaxial cable composed of: A: outer plastic sheath B: woven copper shield C: inner dielectric insulator D: copper core Coaxial cable, or coax, has an inner conductor surrounded by a flexible, tubular insulating layer, surrounded by … Wikipedia
Electronic article surveillance — For the electronic version of a journal article, see electronic article. Electronic article surveillance (EAS) is a technological method for preventing shoplifting from retail stores or pilferage of books from libraries. Special tags are fixed to … Wikipedia