The technique to design multibeam Radial Line Slot Array (RLSA) antennas

Two design methods for Radial Line Slot Antennas with arbitrary or beam pattern

Two design procedures for Radial Line Slot Antennas (RLSAs) with circular polarization and either maximum gain or an arbitrary shaped pattern are proposed. Firstly, a method to design a RLSA with any desired pattern is presented. It is based on an optimization algorithm and some measures to ensure its fast convergence and stability need to be taken. Secondly, a fast technique to calculate the l...

A Reconfigurable Radial Line Slot Array Antenna for WiMAX Application

Radial Line Slot Antennas Fed by a Rectangular Waveguide through a Crossed Slot

Sensitivity of Planar Slot Array Antennas to Manufacturing Tolerances

Waveguide slot arrays are an attractive but expensive choice in a wide range of microwave and millimeter-wave applications when high gain and efficiency are critical. Resonant longitudinal slot arrays offer very high aperture efficiency, low side-lobe levels, and low cross polarization, however, they usually suffer from narrow bandwidth and high cost due to high precision required in manufactur...

A Full-Wave Analysis of a Complete Model for a Radial Line Slot Antenna

Extremely small aperture radial line slot antennas (RLSAs) are analyzed by method of moments. At first, the analysis model of cylindrical waveguide in terms of rectangular cavity modes is confirmed for a RLSA with a spiral slot arrangement. The overall VSWR as well as rotational symmetry of the actual structure of RLSAs is predicted for the first time and is confirmed experimentally. Secondly, ...