A Radial Line Slot Antenna for An Elliptical Beam! ABSTRACT: Antenna ia backbone of communication system with the advent of technology a lot of innovation happens to develop the antenna. Radial Microstrip Slotline Feed Network for Circular Mobile ... RADIAL MICROSTRIP SLOTLINE FEED NETWORK FOR CIRCULAR MOBILE COMMUNICATIONS ARRAY Rainee N. Simons% Eron S. Kelly, Richard Q. Lee and Susan R. Taub NASA Lewis Research Center, Mail Stop 54-5 21000 Brookpark Road, Cleveland, Ohio 44135 INTRODUCTION In mobile and satellite communications there is a need for low cost and ken-system: Fundamental Research of Radial Line Slot Antenna ... Beam shaping is a challenging assignment for radial line slot antennas (RLSAs) which operate on oversized parallel plate waveguides. A RLSA for an elliptical beam with an elliptical aperture is designed and measured at 22GHz. Radiuses of the major and minor axes are 300mm and 150mm for an ellipticity of 2:1. BANDWIDTH ENHANCED AND SIDELOBES LEVEL REDUCED RADIAL LINE ... Also, it can be designed for circular, linear or elliptical polarization. But achieving a reduced sidelobes level has not been an easy task in its design. This paper presents a simple technique to improve the impedance bandwidth and reduce the sidelobes level in linearly polarized Radial Line Slot Array Antenna at 28 GHz for 5G mobile
US8872714B2 - Wide beam antenna - Google Patents
From 7.9GHz to 12.1GHz, the antenna has an obvious gain enhancement, with a peak of 7dB, meanwhile, the antenna RCS is effectively reduced from 4GHz to 12GHz and the maximum RCS reduction reaches 25.4dB at 8.6GHz for x-polarized incident … Radioengineering - April 2018, Volume 27, Number 1 [DOI: 10… HUM, S. V., Perruisseau-Carrier, J. Reconfigurable reflectarrays and array lenses for dynamic antenna beam control: A review. US4115782A - Microwave antenna system - Google Patents An antenna for use in propagating or receiving microwave radiation having both left-hand and right-hand circular polarization. The left-hand and right-hand circularly polarized radiation may be transmitted or received simultaneously …
The antennas listed below are available in the Antenna Magus database. For each of these antennas, Antenna Magus offers detailed information, synthesis algorithms, performance estimations and ready-to-run simulation models.
32GHz RLSA antenna is adaptive Cartesian FDTD simulated for Radiation Pattern. AN4190 An antenna radiation pattern is defined in the IEEE standard as “the spatial distribution of a quantity which characterizes the electromagnetic field generated by an antenna”.In general, however, the figure that the electric field traces is an ellipse, and the field is said to be elliptically polarized. Analysis of a high power microwave radial line slot …
Radial Line Slot Antennas | SpringerLink
RADIAL MICROSTRIP SLOTLINE FEED NETWORK FOR CIRCULAR MOBILE COMMUNICATIONS ARRAY Rainee N. Simons% Eron S. Kelly, Richard Q. Lee and Susan R. Taub NASA Lewis Research Center, Mail Stop 54-5 21000 Brookpark Road, Cleveland, Ohio 44135 INTRODUCTION In mobile and satellite communications there is a need for low cost and low profile antennas which ... Aperture illumination control in radial line slot antennas ... Request PDF on ResearchGate | Aperture illumination control in radial line slot antennas | A radial line slot antenna (RLSA) is a high gain and high efficiency planar array. A single-layered RLSA ... BEAM BROADENED RADIAL LINE SLOT ARRAY ANTENNA FOR FIFTH ... Radial line slot array antenna with broad beam is easily realized at frequencies in the lower part of super high frequency band. But emerging broadband mobile communication systems like the fifth generation target frequencies in the upper part of the band and beyond.
This chapter presents the development history of radial line slot antenna. The antennas are used for circular polarized high-gain antenna in microwave andAkiyama A et al (1988) Numerical optimisation of slot parameters for a concentric array radial line slot antenna. Microwaves Antennas Propag IEE...
US8872714B2 - Wide beam antenna - Google Patents A wide beam radio frequency (RF) antenna includes a waveguide and one or more electrically conductive protrusions. The waveguide has at least one electrically conductive interior wall surface, a boresight defined by a longitudinal axis, and an aperture plane, transverse to the longitudinal axis, disposed at a distal end of the waveguide. Effect of Dielectric Waveguide in the Design of RLSA ... Dielectric materials are one of the major parameters of RLSA antenna. Although so many studies have been conducted on optimization of RLSA antenna but little have been done on examining the effect of slow wave factor in the design. This paper examines the possible pitfall on the antenna performance due to dielectric materials. Design and Implementation of RSLA Antenna for Mobile DBS ... Conclusions • A SOTM (satellite on the move) DBS receiver has been designed and implemented successfully based on Radial Line Slot Array (RLSA) antenna which operates at Ku band. • This RLSA antenna has eight concentric array slot pairs to achieve conical beam, better gain and wider frequency bandwith compared to Makoto Ando model.
(PDF) The Effects of Parasitic Superstrate Elliptical Shaped ... M.F. Jamlos, O.A. Aziz, T.A. Rahman, M.R. Kamarudin support layers on the performance of an elliptical shaped and P. Saad, “Reconfigurable Radial Line Slot Array microstrip patch antenna with random and unsymmetrical slots (RLSA) Antenna for Beam Shape And Broad-Side are presented in this paper. A reconfigurable radial line slot array (RLSA) antenna for ... A reconfigurable beam shape and broadside radiation pattern microstrip antenna is introduced in this paper. The antenna's radiating surface is designed using a radial line slot array (RLSA) arrangement, which is fed from an aperture coupled structure. Radial Line Slot Antenna Simulation - YouTube