Review of lens-assisted beam steering methods

review of radiographic methods in dental implantology

چکیده ندارد.

Wide Angle Decentered Lens Beam Steering for Infrared Countermeasures Applications

Broadband Beam Steering

A solid-state broadband beam deflector is described. This non-mechanical system steers spatially coherent broad band light to a common location in the far field. The components include a liquid crystal grating and achromatic Fourier transformer. The liquid crystal grating employs a polarization modulation scheme which produces a wavelength independent phase shift. The achromatic Fourier transfo...

Reduction of Internal Reflections in Inte- Grated Lens Antennas for Beam-steering

The conventional integrated lens antennas (ILAs) for beam steering suffer from internal reflections that deteriorate the scanning properties. The internal reflections are known to affect side lobes, cross-polarisation level, input impedance of the feed, and mutual coupling. In this paper, ILAs are designed to exhibit very low reflection loss, i.e., to minimize the internal reflections. Wide ran...

Using Optimized Eccentricity Rexolite Lens for Electrical Beam Steering with Inte- Grated Aperture Coupled Patch Array

Design and measurement results of a beam-steering integrated lens antenna at 77 GHz are presented. An 8-element LTCC aperture coupled patch antenna feed array with a switching network is used to electrically steer the main beam in H-plane. A 100-mm diameter Rexolite (εr = 2.53) lens is simulated and tested. The eccentricity of the lens is optimized in an earlier work with ray-tracing simulation...