Antenna for underwater has an electro-acoustic modulator system having a composite body with ceramic elements embedded in a polymer and made from piezoelectric/electrostrictive ceramic material

摘要

Ceramic elements are superimposed on each front side of each common electrode (21) so as to form electro-acoustic modulators (13). The electrodes operate in strips on a front side of the ceramic elements with a smaller strip width compared to their strip length so as to reduce extra levels in a main direction for the transmitting/receiving characteristics of an underwater antenna.