lossless cavity
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Microwave cavity — A microwave cavity is a closed metal structure that confines electromagnetic fields in the microwave region of the spectrum. Such cavities act as resonant circuits with extremely low loss at their frequency of operation. Their Q factor may reach… … Wikipedia
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
Time Reversal Signal Processing — is a technique for focusing waves. A Time Reversal Mirror (TRM) is a device that can focus waves using the time reversal method. TRMs are also known as time reversal mirror arrays, as they are usually arrays of transducers, but they do not have… … Wikipedia
Transformer — This article is about the electrical device. For the toy line franchise, see Transformers. For other uses, see Transformer (disambiguation). Pole mounted distribution transformer with center tapped secondary winding. This type of transformer is… … Wikipedia
Superlens — A superlens, super lens or perfect lens is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is an inherent limitation in conventional optical devices or lenses.[1] In 2000, a type of lens was proposed,… … Wikipedia
Dummy load — Cantenna dummy load suitable up to 30 MHz and up to 1 kW A dummy load is a device used to simulate an electrical load, usually for testing purposes. Contents 1 Radio … Wikipedia
List of electrical engineering topics — This is a listing of electrical engineering and electronic engineering topics and related terms. Contents 1 Electromagnetism 2 Physical laws 3 Control engineering 4 Electronics … Wikipedia
TEA laser — The CO2 TEA laser was invented in the late 1960s by Dr Jacques Beaulieu working at the Defence Research Establishment, Valcartier, in Quebec, Canada. The development was kept secret until 1970 when brief details were published.C K N Patel,… … Wikipedia
Downlink CNR — (Carrier to noise ratio in satellite reception) is an important figure in system TVRO design. Below are certain parameters used in CNR computation. Contents 1 Figure of merit 2 Path loss 3 EIRP 4 Baseband … Wikipedia