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In the field of antenna design the term radiation pattern (or antenna pattern or far-field pattern) refers to the directional (angular) dependence of the...15 KB (2,169 words) - 21:44, 25 August 2024
Headlamp (redirect from High beam lamp)to optimize the beam pattern or to affect the traffic-handedness of the low beam. The latter is accomplished by clocking the low-beam filament in an...146 KB (16,622 words) - 23:22, 9 November 2024
Passive infrared sensor (section Beam pattern)the optimal sensitivity beam pattern for each application. Motion detector with superimposed beam pattern. The length of the beams is a measure of the detectors...14 KB (1,926 words) - 07:21, 20 March 2024
laser science, laser beam quality defines aspects of the beam illumination pattern and the merits of a particular laser beam's propagation and transformation...7 KB (965 words) - 05:36, 19 August 2024
Microphone (redirect from Variable polar pattern)as a collocated triad to improve the gain and also create a steerable beam pattern. "Figure-8" or bi-directional microphones receive sound equally from...82 KB (9,971 words) - 04:38, 6 November 2024
Airy disk (redirect from Airy pattern)Airy diffraction pattern which is the diffraction pattern from an annular aperture or beam, i.e. a uniform circular aperture (beam) obscured by a circular...30 KB (4,608 words) - 14:10, 20 September 2024
often by etching. The primary advantage of electron-beam lithography is that it can draw custom patterns (direct-write) with sub-10 nm resolution. This form...38 KB (4,736 words) - 09:02, 10 July 2024
A castellated beam is a beam style where an I-beam is subjected to a longitudinal cut along its web following a specific pattern. The purpose is to divide...954 bytes (85 words) - 14:57, 26 February 2023- array of antenna elements. Its purpose is to control the direction of a beam, or beams, of radio transmission. It consists of an n × n {\displaystyle n\times...12 KB (1,596 words) - 18:48, 18 May 2024
concept of grating lobes, we will use a simple uniform linear array. The beam pattern (or array factor) of any array can be defined as the dot product of the...6 KB (1,072 words) - 02:01, 9 July 2024- Phase-comparison monopulse (section Sum Pattern)mathematical derivation should make it clear why this is so. We can define the beam pattern (array factor) of a uniform linear array (ULA) with N elements, as: B...13 KB (2,619 words) - 18:56, 28 May 2022
Instrument landing system (section Beam systems)form of beam systems of various types. These normally consisted of a radio transmitter that was connected to a motorized switch to produce a pattern of Morse...52 KB (6,179 words) - 10:29, 8 September 2024
Diffraction (redirect from Diffraction pattern)interference pattern since the relation between their phases is no longer time independent.: 919 The length over which the phase in a beam of light is...50 KB (6,404 words) - 01:17, 4 November 2024- Half-power point (section Antenna beams)(\theta )} is a matrix with m {\displaystyle \mathrm {m} } rows, the beam pattern is first computed as: B ( θ ) = 1 m A ( θ 0 ) ∗ A ( θ ) {\displaystyle...5 KB (702 words) - 20:10, 16 October 2024
In optics, a Gaussian beam is an idealized beam of electromagnetic radiation whose amplitude envelope in the transverse plane is given by a Gaussian function;...47 KB (6,969 words) - 13:21, 5 November 2024- the beam pattern radiation in the horizontal plane. In contrast to such two-dimensional beamforming (2DBF), 3DBF adapts the radiation beam pattern in both...2 KB (249 words) - 16:50, 21 May 2020
allows a wide variety of beam patterns to be generated. It can be used to turn a Gaussian beam into a non-diffractive Bessel-like beam. Axicons were first...8 KB (948 words) - 03:50, 12 July 2024
Cassegrain antenna (section Beam waveguide antenna)of feedhorns clustered around the focal point, to create a particular beam pattern. These require the good off-axis focusing characteristics of a large...12 KB (1,366 words) - 14:43, 13 September 2024
Selected area diffraction (redirect from Selected area diffraction pattern)each set of initially parallel beams intersect in the back focal plane forming the diffraction pattern. The transmitted beams intersect right in the optical...15 KB (1,710 words) - 23:20, 13 July 2024
- stored as a charge pattern on a mosaic, and is subsequently read by scanning the pattern with an electron beam. The electron beam brings the charge density
- Blue Ant trilogy (redirect from Pattern Recognition)narratives — "speculative fiction of the very recent past." The novels, Pattern Recognition (2003), Spook Country (2007) and Zero History (2010), are set
- heat trasnfer is slower than contact transfer. Electrob beam lithography. Dosage depends on pattern density and acceleration voltage. Developing in MIBK:IPA