Broadband exterior cloaking.
It is shown how a recently proposed method of cloaking is effective over a broad range of frequencies. The method is based on three or more active devices. The devices, while not radiating significantly, create a "quiet zone" between the devices where the wave amplitude is small. Objects placed within this region are virtually invisible. The cloaking is demonstrated by simulations with a broadband incident pulse.
Vasquez
Fernando Guevara
FG
Department of Mathematics, University of Utah, Salt Lake City, UT 84112, USA. fguevara@math.utah.edu
Milton
Graeme W
GW
Onofrei
Daniel
D