Electromagnetic Virtual Anechoic Chamber

To address the Armys need for an open air virtual partial alcove anechoic chamber to attenuate interference to and from electronic warfare (EW) systems for test ranges, Physical Optics Corporation (POC) is completing the development of a new Electromagnetic Virtual Anechoic Chamber (EMVAC) shown to be feasible in Phase I. It is based on interference suppression by an innovative mitigation technique and available antenna, receiver, and transmitter components to send out a canceling wave. The innovation in the system architecture and its antenna network enables EMVAC to persistently reduce interference originating from EW systems under test and also from external commercial communication systems. During the Phase I feasibility studies, POC demonstrated the concept through simulation analysis and laboratory experiments, and developed a prototype design concept to be built in Phase II. In Phase II development, POC plans to implement an EMVAC prototype to conduct live-testing to prove its mission worthiness.