beam width
Relationship between Stepper Motor Step-angle and Satellite Dish Antenna Diameter and Beam-Width
... Abstract: - This study is a part of a research of designing a Satellite Dish Antenna Positioning System using stepper motors for adjusting azimuth, elevation and polarization angles. This paper aims to find a general ...
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Periodic Measurements of Passive Proton Beam Width Using Radiochromic Film in Fixed Gantry System
... proton beam treatment ...incident beam. Therefore, as- sessment of the incident position of the beam is very important even in the scattering ...the width and distribution of the proton ...
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Direct Measurement of Medical Linear Accelerator Electron Beam Width at Scattering Foil Position
... electron beam with a target that is not charged in a primary collimator was measured by Sawkey and Faddegon [7] using the spot camera method proposed by Lutz et al ...electron beam as a parameter of Monte ...
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Beam Width Prediction for Efficient Context Free Parsing
... span width; POS-tags and words surrounding the boundary of the cell – we train a log linear model to predict how many constituents should be popped from the local agenda and added to the ...a ...
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Shear Resistance Prediction of post-fire reinforced concrete beams using artificial neural network
... the beam decreases with the increase of fire ...the beam width, beam height, stirrup area, concrete tensile strength, and inversely proportional to stirrup ...The beam with a small ...
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Focusing system for an ultrasonic transducer
... hemisphere piezoelectric crystal having a non-uniform beam width and a better lateral resolution than the plane transducer due to reduced beam width in the foc... Objective of Research T[r] ...
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EFFECT OF VARIATION OF LASER PARAMETERS ON FREQUENCY SHIFT IN TRANSPARENT BULK MEDIA
... change in refractive index induces self phase modulation and ultimately frequency broadening. It is evident from the Figure 5, where the dimensionless frequency downshifts with distance and its rate of downshift has ...
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SYNTHESIS OF NON UNIFORM LINEAR ARRAYS USING DOLPH – CHEBYSHEV POLYNOMIAL BY REDUCING SIDE LOBE LEVEL BASED ON MODULATING PARAMETER ARRAY FACTOR
... half-power beam width (HPBW) stimulate the question answered primarily by Dolph of obtaining the narrowest possible beam width for a given side-lobe level or the smallest side-lobe level for a ...
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Increasing the Efficiency of Wireless Network Using Adaptive Push Systems
... alterable beam width, thus with both switched beam smart antennas and adaptive array ...Switched beam systems employ a number of fixed beam patterns and based on the application ...
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Bottom-Up Relational Learning of Pattern Matching Rules for Information Extraction
... For the purposes of this example, we assume that there is a semantic class for states, but not one for cities. For simplicity, we assume the beam-width is 2. The fillers are generalized [r] ...
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Design and Analysis of Shunt Configuration Based RF MEMS Switch
... 1. Electromechanical analysis of capacitive series switch In effort to study the effect of geometric parameters on the performance of the switch, it is designed and simulated in COMSOL. Here we have taken beam ...
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Validation of the radiation pattern of the Middle Atmosphere Alomar Radar System (MAARSY)
... the beam pointing and beam form- ing of the MAARSY VHF ...the beam pointing and beam forming of the MAARSY radar and estimated the accuracy of beam pointing to be bet- ter than ...
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THE EFFECT OF SUPERSTRATE ON THE PATCH ANTENNA
... gain, beam-width, resonant frequency, input impedance, return-loss and VSWR ...power beam- width (HPBW) in horizontal polarization is increased from ...power beam-width (HPBW) in ...
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Design of Quasi Optical Lens Antenna for W Band Short Range Passive Millimeter Wave Imaging
... A pyramidal horn connected with W-band source is applied as a transmitter. The aperture size of the horn is 8 mm * 5.5 mm, and its gain is 15.4 dB and −10 dB beam width is 53˚. The position of the ...
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CLIENT DENSITY BASED INTELLIGENT DESIGN OF MICROSTRIP PATCH ANTENNA FOR MOBILE HANDSETS
... 207 assigned in each group is N, where N is time varying, then N . g . G. As N increases then g increases but G remains constant. As G increases then no of Smart antennas used increases, so beam width of ...
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Modeling of probe-and-drogue part of an in-flight refueling system
... Hose Drogue Figure 3.1 simplification L: the length W: I: of drogue the beam the beam width of H: height of of probe and the beam area moment of inertia WH = 12 In the finite elements by[r] ...
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Simulating precipitation radar observations from a geostationary satellite
... If the wide beam width of 0.032 ◦ is used, the raw product may be prohibitively coarse for a specific purpose. One pos- sible way to effectively downscale such observations is to as- similate the data for ...
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Beam Wander of the Multi-Gaussian Schell-Model Beam in Anisotropic Turbulence
... r.m.s. beam width and propagation distance for different orders of MGSM ...r.m.s. beam width of the higher order of the MGSM beam is smaller than that of the lower one under the same ...
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RF MEMS for Reconfigurable Antenna using GSO Algorithm with ANN
... ABSTRACT: This paper presenting the study of RF-MEMS technology which is continuously growing and MEMS for reconfigurable antenna it is very interesting and most valuable issues for optimization designing. It is ...
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Finite Element Modelling of Steel Beams with Web Openings
... Height limitations are not uncommon in multi-storey buildings due to economic requirements and esthetical considerations. Substantial spaces are normally required to enable the passage of large pipes and ducts beneath ...
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