Design of a bandwidth enhanced dual-band dual-polarized array antenna

Abstract

The role of the future navy continues to require higher levels of functionality, performance, and interoperability from shipboard systems. Embedded in the superstructure of future navy ships will be a variety of antenna arrays that will perform different functions such as radar. In an advanced multi-function RF concept (AMRFC), separated Tx and Rx arrays are required to provide the capability to perform a variety of functions [1]. To accommodate multiple functionalities, AMRFC radar systems require advanced antennas operating in multiband and with multi-polarization. In general, a dual-polarized operation can provide more information for radar systems, can increase the isolation between the transmitting and receiving signals of transceivers and transponders, and can double the capacity of communication systems by means of frequency reuses[2]-[3].