Carlos del Río Bocio

Design of Beam-Forming Networks for Scannable Multi-Beam Antenna Arrays Using Corps

This work was supported by the Mexican National Science and Technology Council, CONACyT, under grant J50839-Y and the Science and Technology Council of Tamaulipas Mexico (COTACyT) under Grant 2007-C13-73901.

Design of concentric ring antenna array for a reconfigurable isoflux pattern

This report presents a novel design of concentric ring antenna array for a reconfigurable isoflux pattern. The array considers 61 disk patch antennas including mutual coupling by using the cavity model at the frequency of 2.8 GHz. The problem consists in finding out a few levels of excitations for the disk patch antennas. Harmony search algorithm and particle swarm optimization are implemented for this optimization problem. This novel design permits to reduce the complexity of the antenna hardware in the whole antenna system mounted in a satellite, where the volume occupation and heat dissipations are critical issues.

A new reconfigurable wide coverage pattern by optimizing a microstrip patch antenna array

This research presents a design of a microstrip patch antenna array for a reconfigurable wide coverage pattern. The antenna array regards disk patch antennas modeled by the cavity model as well as coupling effects at 2.8 GHz. The results can reduce considerably hardware complexity of the antenna array mounted in a satellite at different altitudes. The well-known particle swarm optimization is performed to obtain the optimal values of voltage excitations.

A multi-beam planar antenna array using CORPS and evolutionary optimization

This paper deals with the design of beam-forming networks (BFNs) using coherently radiating periodic structures (CORPS) for a planar array. This design of feeding networks using the principles of CORPS considers the optimization of the complex inputs of the network by using the well-known method of genetic algorithms (GA). Some results obtained by simulation for a CORPS network of certain configuration are presented. The results shown in this paper present some interesting characteristics in the array factor response for the scannable multibeam planar array and the feeding network optimized for the design of BFN based on CORPS.