aperture of an antenna

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• Antenna (radio) — Whip antenna on car …   Wikipedia

• Antenna aperture — As a receiver, antenna aperture can be visualised as the area of a circle constructed broadside to incoming radiation where all radiation passing within the circle is delivered by the antenna to a matched load. (Note that transmitting and… …   Wikipedia

• Antenna diversity — Antenna diversity, also known as space diversity, is one in a superset of wireless diversity schemes that utilizes two or more antennas to improve the quality and reliability of a wireless link. Often, especially in urban and indoor environments …   Wikipedia

• Antenna effective area — In telecommunication, antenna effective area or effective aperture is the functionally equivalent area from which an antenna directed toward the source of the received signal gathers or absorbs the energy of an incident electromagnetic wave. Note …   Wikipedia

• Aperture (disambiguation) — An aperture is an opening, in particular one whose size determines what can or cannot pass through. The term can in particular refer to:*Aperture of an optical system, the opening that limits the amount of light that can pass through *Aperture… …   Wikipedia

• Antenna factor — In telecommunications, the antenna factor AF (unit: 1/m) is defined as the ratio of the incident electromagnetic field strength E (units: V/m or µV/m) to the voltage V (units: V or µV) on the line connection of an antenna:: AF = frac EVIf all… …   Wikipedia

• Aperture — For other uses, see Aperture (disambiguation). f stops demonstrated on a lens …   Wikipedia

• Aperture-to-medium coupling loss — In telecommunication, aperture to medium coupling loss is the difference between the theoretical gain of a very large antenna, such as the antennas in beyond the horizon microwave links, and the gain that can be realized in practice. Note 1:… …   Wikipedia

• antenna aperture — antenos apertūra statusas T sritis radioelektronika atitikmenys: angl. antenna aperture vok. Antennenapertur, f rus. апертура антенны, f pranc. ouverture d antenne, f …   Radioelektronikos terminų žodynas

• Inverse synthetic aperture radar — (ISAR) is a technique to generate a two dimensional high resolution image of a target.In situations where other radars display only a single unidentifiable bright moving pixel, the ISAR image is often adequate to discriminate between various… …   Wikipedia

• Horn antenna — Pyramidal microwave horn antenna, with a bandwidth of 0.8 to 18 GHz. A coaxial cable feedline attaches to the connector visible at top. This type is called a ridged horn; the curving fins visible inside the mouth of the horn increase the antenna… …   Wikipedia