Wide beam
Compact Wide-Beam Circularly Polarized Antenna with Stepped Arc-Shaped Arms for CNSS Application
... Figure 1 shows the geometry of the proposed wide-beam CP antenna. The antenna is composed of four arc-shaped radiation arms. Each arm is split up into two horizontal arc-shaped parts and one vertical part. ...
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Thermal Design of Wide Beam Area X-Ray Sources
... This chapter is dedicated to the detailed presentation of the final design adopted in this study as the most effective solution to complete thermal management of wide beam area x-ray sources. The final ...
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Motion compensation of short-range, wide-beam synthetic aperture radar
... with wide-beam antennas, of course, does not increase the resolution but the probability to detect hid- den targets with an anisotropic radar cross section signifi- cantly in comparison to other detection ...
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Broadband, Wide Beam Circularly Polarized Antenna with a Novel Matching Structure for Satellite Communications
... Abstract—A wide beam, circularly polarized (CP) antenna is presented for satellite communications. The antenna consists of two crossed bent dipoles, two baluns and two pairs of rectangular patches and a ...
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Wide Beam Circularly Polarized Microstrip Antenna with Parasitic Ring for CNSS Application
... a wide-beam circularly-polarized microstrip dielectric antenna is designed through adjusting the substrate size and the vertical radiation beam width could be ...vertical beam-width of slot ...
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A Wide-Beam Base Station Antenna with Modular Radiator for Reconfigurability
... a wide-beam antenna without a director in Fig. 2. Note that the wide-beam antenna without the director is designed to provide a peak co-pol az-HPBW of ∼ 180 ◦ with an acceptable impedance ...
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Wide Beam Tapered Slot Antenna for Wide Angle Scanning Phased Array Antenna
... profile, wide band and wide beam CPW fed tapered slot antenna has been presented along with the measured ...a wide beam width and a moderate gain of 4–7 dB over full X-band in array ...
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Improved Motion Compensation for Wide-Beam Wide-Swath Airborne SAR
... for wide-beam wide-swath airborne SAR has been presented, and the performance has been demonstrated using simulated, as well as real P-band SAR ...
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A Study of Monochromatic X-ray Area Beam for Application in Diffraction Enhanced Imaging
... compact wide-beam x-ray source for Diffraction Enhanced Imaging applications, the major requirements are a highly collimated, high intensity photon flux ...x-ray beam. To increase x-ray flux to ...
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Modification of fractal algorithm for oil spill detection from RADARSAT-1 SAR data
... SAR data acquired in this study were derived from the RADARSAT-1 images that involve Wide beam mode (W1) and Standard beam mode (S2) images, respectively. Both images are C-band and have a lower ...
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Simulation of Rectangular Microstrip Patch Antenna
... Microstrip antenna elements radiate efficiently as devices on microstrip printed circuit boards. Microstrip patch antenna consists of a radiating patch on one side of a dielectric substrate with a continuous metal layer ...
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An FPGA-based 77 GHzs RADAR signal processing system for automotive collision avoidance
... Table 6.12: Errors from HDL Simulations of 3-Lane Narrow Beam Scenario 124 Table 6.13: Results from HDL Simulations of 3-Lane Single Wide Beam Scenario 129 Table 6.14: Errors from HDL [r] ...
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Aperture antennas
... and development of a specific wide beam antenna suitable for inclusion in a radar or communication array antenna is also presentedw In applications employing a wide beam antenna as an is[r] ...
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Simulating precipitation radar observations from a geostationary satellite
... the beam width, the beam sampling span, and the position of targeting precipitation ...the wide beam width and coarse beam span, the radar cannot observe weak precipitation at low ...a ...
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Perception of spatial information in a multiple object auditory space
... Auditory space produced by means of a Continuous Transmission Frequency Modulated CTFM wide beam wide band sonar has been used in a sensory aid for the blind for some time... using this [r] ...
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Nano CNC machining of sub THz vacuum electron devices
... sheet beam klystron, two designs of a 220 GHz sheet beam double staggered grating travelling wave tube, 263 GHz sheet beam travelling wave tube amplifier for an electron paramagnetic resonance ...
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Measurements of neutron-induced reactions in inverse kinematics and applications to nuclear astrophysics
... reaction can be neglected compared to the energy of the revolving ions. If this assumption is not valid anymore, the trajectories of the products will scatter. This holds true in particular for (exothermal) fission ...
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ECH and ECCD effects on NTMs stabilization by ECRF in JT-60SA tokamak
... the beam tracing calculations are reported in Table 1. The beam propagation obtained with Physics Optics calculation is fairly accurate keeping into account diffraction effects and ...the beam ...
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A pseudospark cathode Cherenkov maser : theory and experiment
... maximum beam cur- rent the inductance in the discharge circuit should be ...optimum beam current from the single-gap pseudospark discharge chamber was 100 A at 10 kV with C %95 " 500 ...electron ...
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A Compact Endfire Radiation Antenna Based on Spoof Surface Plasmon Polaritons in Wide Bandwidth
... On the other hand, the narrow slot works as a waveguide for the running wave, and it can provide an endfire beam within a very narrow band at 2.5 GHz from the simulation results. The power flow distributions at 2.5 ...
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