Synthesis of antenna arrays
AntennaArrays DIT-PRJ-08-064
Status NOT active project
DISI role Coordinator
Project type Education and Mobility Project
Dimension International
Acquisition date 2008-09-08
Start date 2008-09-08
End date 2008-09-08
Project details
Project astract The objective of the proposed research is the design of large arrays for multiple beam<br/>satellite applications, by using both a number of radiating elements as small as possible<br/>and a simple feed network. New techniques for synthesizing uniformly fed arrays will be<br/>proposed, since the use of uniform excitations reduces the cost and complexity of the<br/>required feeding network, being this one of the main difficulties arising in the design of<br/>antenna arrays. One of the techniques suggested in this research is based on the<br/>utilization of sub-arrays. Using this technique the number of elements of the arrays will be<br/>also reduced, which implies the reduction of the array complexity too. For the design of the<br/>feeding network, a technique based on the effects of parasitic elements is proposed. Using<br/>an antenna system composed of parasite arrays illuminated by a small array, it is possible<br/>to obtain patterns of moderate directivity and low side lobe level. With this technique it is<br/>possible to reduce the cost of the feed network. Furthermore, we intend to use a<br/>technique that allows the beam reconfiguration to be achieved by means of a mechanical<br/>displacement of a parasitic array in front of an active one.<br/>
Keywords Wireless Communications, Antenna Array, Optimization Techniques
Fundings 10500 €