waveguide, below cut-off
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Non-Radiative Dielectric waveguide (NRD) — Figure 1 Contents 1 Introduction 2 The dispersion relation in the NRD wave … 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
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
Filter (optics) — Coloured and Neutral Density filters Optical filters are devices which selectively transmit light of different wavelengths, usually implemented as plane glass or plastic devices in the optical path which are either dyed in the mass or have… … Wikipedia
Distributed amplifier — Distributed amplifiers are circuit designs that incorporate transmission line theory into traditional amplifier design to obtain a larger gain bandwidth product than is realizable by conventional circuits. N stage traveling wave amplifier … Wikipedia
Telecommunication — A parabolic satellite communication antenna at the biggest facility for satellite communication in Raisting, Bavaria, Germany … Wikipedia
Power dividers and directional couplers — A 10 dB 1.7–2.2 GHz directional coupler. From left to right: input, coupled, isolated (terminated with a load), and transmitted port … Wikipedia
Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c … Wikipedia
Weather radar — in Norman, Oklahoma with rainshaft … Wikipedia
Antenna (radio) — Whip antenna on car … Wikipedia
Microwave oven — A modern microwave oven … Wikipedia
