Thales' IM400 integrated sensor and antenna system accomodates all of a naval ship's radars, electro-optic sensors and antennas. One of the systems integrated in IM400 is ICAS, Integrated Communications Antenna System.
ICAS provides an integrated communication solution tht facilitates the use of standard VHF/UHF communications equipment, is fitted for Link 16 integration, provides excellent transmit/receive isolation, offers estate for auxiliary antennas as GSM/GPS, and is designed for future growth.
The ICAS architecture selected for the Royal Netherlands Navy's Patrol Ship program and the Karel Doorman Joint Support Ship features four flat panel receive antenna arrays and four dual (VHF/UHF) flat panel transmit antenna arrays. These interface to an Antenna Distribution Unit, which in turn interfaces to a Tranceiver Combiner Unit.
More information on ICAS technology can be found here.
More information on IM400 can be found here.