filter cavity

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• 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

• cavity filter — rezonatorinis filtras statusas T sritis radioelektronika atitikmenys: angl. cavity filter vok. Hohlraumresonatorfilter, n rus. резонаторный фильтр, m pranc. filtre à cavité, m …   Radioelektronikos terminų žodynas

• filter feeding — ▪ zoology       in zoology, a form of food procurement in which food particles or small organisms are randomly strained from water. Filter feeding is found primarily among the small to medium sized invertebrates but occurs in a few large… …   Universalium

• RF and microwave filter — Radio frequency (RF) and microwave filters represent a class of electronic filter, designed to operate on signals in the megahertz to gigahertz frequency ranges (medium frequency to extremely high frequency). This frequency range is the range… …   Wikipedia

• Distributed element filter — Figure 1. A circuit featuring many of the f …   Wikipedia

• Mechanical filter — Figure 1. A mechanical filter made by the Kokusai Electric Company intended for selecting the narrow 2 kHz bandwidth signals in SSB radio receivers. It operates at 455 kHz, a common IF for these receivers, and is dimensioned 45×15×15 mm ( …   Wikipedia

• Comb filter — In signal processing, a comb filter adds a delayed version of a signal to itself, causing constructive and destructive interference. The frequency response of a comb filter consists of a series of regularly spaced spikes, giving the appearance of …   Wikipedia

• Lyot filter — A Lyot filter, named for its inventor Bernard Lyot, is a type of optical filter that uses birefringence to produce a narrow passband of transmitted wavelengths. Lyot filters are often used in astronomy, particularly for solar astronomy.A Lyot… …   Wikipedia

• Source-filter model of speech production — The source filter model of speech production models speech as a combination of a sound source, such as the vocal cords, and a filter, the vocal tract (and radiation characteristic).While only an approximation, the model is widely used in a number …   Wikipedia

• animal — animalic /an euh mal ik/, animalian /an euh may lee euhn, mayl yeuhn/, adj. /an euh meuhl/, n. 1. any member of the kingdom Animalia, comprising multicellular organisms that have a well defined shape and usually limited growth, can move… …   Universalium

• Potassium channel — Top view of potassium ions (purple) moving through potassium channel (PDB 1BL8) In the field of cell biology, potassium channels are the most widely distributed type of ion channel and are found in virtually all living organisms …   Wikipedia