beam scanning
A Dual Beam Scanning Microstrip Antenna
... Abstract—A dual-beam scanning microstrip antenna is proposed in this letter. The well-known characteristic of the conventional leaky wave antenna is the beam scanning with operating frequency ...
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Continuous Beam Scanning in Substrate Integrated Waveguide Leaky Wave Antenna
... In recent years, leaky wave antennas (LWAs) have received great attention in applications such as radar, point to point and satellite communication systems for their high directivity and beam scanning ...
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A sparse sampling strategy for angular superresolution of real beam scanning radar
... Real beam scanning radar (RBSR) has been widely used in both civilian and military fields, owing to its all weather and day/night ...Doppler beam- forming (DBF) ...
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A Beam Scanning Based Indoor Localization System using Light Emitting Diodes
... In this work, the database used for estimating the position of an object using beam scanning is primarily based on the received signal strength from the two LEDs. However it is worth investing what will be ...
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Array-Fed Beam-Scanning Partially Reflective Surface (PRS) Antenna
... To realize beam-scanning for the PRS antenna, a reconfigurable feed network is designed for the source antenna. To obtain phase shifts between the two array elements, reconfigurable defected microstrip ...
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Array Beam Scanning and Switching by Variation of Amplitude-Only Excitations
... main beam is along the broad side direction ( along the ...main beam is largest when ɸ=0° since the radiated fields of the two sub-arrays add ...single beam that is normal to the antenna ...main ...
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Research on Multi beam Scanning and Optimization Technology for Time Modulated Array
... we focus on the use of the sideband radiation instead of suppressing. A technology of phase-controlled multi-beam scanning based on the countless sideband radiation at the harmonic frequencies is presented. ...
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A Novel Beam Scanning/Directivity Reconfigurable m -EBG Antenna Array
... The paper discusses in the first part the proper technique to design the element antenna shape. Several antennas are aligned together in an array to perform beam scanning over a wide angle or shaping ...
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Robustness Evaluation of a Novel Proton Beam Geometry for Head and Neck Patients Treated with Pencil Beam Scanning Therapy
... pencil beam scanning (PBS) technique with respect to range uncertainty (RU) and setup errors (SE), and to establish a robust PBS planning strategy for fu- ture ...
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Beam Scanning Microstrip Leaky Wave Antenna Design Based on Liquid Crystal
... novel beam scanning microstrip leaky wave antenna based on liquid crystal material is proposed in this ...main beam angle of the antenna pattern can be easily adjusted with the changing of external ...
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Ultrasonic lateral modulation imaging, speckle reduction, and displacement vector measurements using simple single-beam scanning or plural crossed-beam scanning with new spectra frequency division processing methods
... the beam width) was not sensitive with regard to measurement ...single-beam scanning or simple plural crossed-beam scanning with no apodization (ie, Methods I and D) to achieve almost ...
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Investigations on Beam-Scanning Improvement of Reflectarrays Using Single-Layered Sub-Wavelength Elements
... of beam-scanning improvement of reflectarrays by reducing the cell size at millimetre waves is presented in ...and beam-scanning performances is ...the beam scanning of the ...
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Vibration compensating beam scanning interferometer for surface measurement
... Light beam scanning using a dispersive element and wavelength tuning is coupled with fiber-optic interferometry to realize a new surface measurement ...
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Vibration compensating beam scanning interferometer for surface measurement
... the beam scanning, and the resulting intensity values produced by the scanned profile are ...each beam sweep, a phase shift is induced by moving the piezo-electric translator (PZT) mounted reference ...
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A targeted 3D EM and correlative microscopy method using SEM array tomography
... face scanning electron microscopy (SBFSEM) and focused ion beam scanning electron microscopy (FIB-SEM), which use back-scattered electrons to image the block surface, have helped to address ...
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Effects of Laser Hardening Process Parameters on Case Depth of 4340 Steel Cylindrical Specimen—A Statistical Analysis
... power, scanning speed and beam position have been optimized for both performance characteristics ...the beam power and scanning speed greatly affect the compressive residual stress level ...
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Important considerations for craniofacial mapping using laser scanners
... R esearch carried out by Kusnoto and Evans (2002), Da Silveira et al. (2003) and Boehnen and Flynn (2005) to study 3D laser scanning technology for capturing 3D craniofacial soft- tissue data to model human faces ...
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Non-destructive imaging of buried electronic interfaces using a decelerated scanning electron beam
... seen in a part of Cu wire. These regions with many defects may be the area that can be detached by further current applications as seen in the right hand side junction in Fig. 3a. In summary, we can conclude that the ...
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Chemical and structural analysis on magnetic tunnel junctions using a decelerated scanning electron beam
... is located above the lens and two additional detectors, a retractable backscattered electron detector (BED) and a lower electron detector (LED), are installed just above the sample space. The UED becomes sensitive to ...
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Comparative study of beam induced carbonaceous deposits in helium ion and scanning electron microscopes
... the beam-induced contamination, arising from the interaction between the energetic particles involved with beam-specimen interaction and the hydrocar- bon materials present on the specimen surface ...[22]. ...
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