radiating elements

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• Metamaterial antenna — This Z antenna tested at the National Institute of Standards and Technology is smaller than a standard antenna with comparable properties. Its high efficiency is derived from the Z element inside the square that acts as a metamaterial, greatly… …   Wikipedia

• radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… …   Universalium

• Dual-band blade antenna — Contents 1 Introduction 2 Theory 2.1 Monopoles 2.1.1 Blade Antennas 2.2 Slot Antennas …   Wikipedia

• Tactical vest antenna system — Infobox Mobile phone name = TVAS image size = 200px manufacturer = Wearable Antenna Technologies Inc.Tactical Vest Antenna System (TVAS) is a type of wearable antenna designed for use by the U.S. military. It is claimed to be more effective than… …   Wikipedia

• rose window — a circular window decorated with tracery symmetrical about the center. Cf. wheel window. [1765 75] * * * In Gothic architecture, a decorated circular window, often glazed with stained glass, that first appeared in mid 12th century cathedrals. It… …   Universalium

• Radiator — Radiators and convectors are types of heat exchangers designed to transfer thermal energy from one medium to another for the purpose of cooling and heating. The majority of radiators are constructed to function in automobiles, buildings, and… …   Wikipedia

• Phased array — This article is about general theory and electromagnetic phased array. For the ultrasonic and medical imaging application, see phased array ultrasonics. In wave theory, a phased array is a group of antennas in which the relative phases of the… …   Wikipedia

• Radar MASINT — is one of the subdisciplines of Measurement and Signature Intelligence (MASINT) and refers to intelligence gathering activities that bring together disparate elements that do not fit within the definitions of Signals Intelligence (SIGINT),… …   Wikipedia

• WWV (radio station) — WWV is the callsign of NIST s shortwave radio station located in Fort Collins, Colorado. WWV s main function is the continuous dissemination of official U.S. Government time signals. The station broadcasts simultaneously on five distinct… …   Wikipedia

• Retrodirectivity — A retrodirective antenna is an antenna that transmits the signal back in the same direction it came from. This is based on the principle of self phase conjugation of the input signal. Directivity depends on relative phases of signal radiated from …   Wikipedia

• ALLISS — Disambiguation * Financial Instruments: The Alliss Grant a US Financial Aid instrument, see [http://www.lsc.cc.mn.us/FinancialAid/allissGrant.cfm] [http://www.mnscu.edu/students/specialprograms/alliss.html] . * People: Peter Alliss (UK golfer and …   Wikipedia