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A new possibilities in the field of information security services in the microwave and millimeter waveband (including THz) computer network with wireless access and indoor systems are offered and discussed.
A new methods of construction and optimization of diffraction optics elements with square zones topology which allow to greatly reduce a sidelobe level by rotating square zones relative to each other are presented. The method of finding maximal of sidelobe level using multiple runs of local search algorithms and zones rotation angles optimization algorithm… (More)
The results of a detailed simulation obtained using a parallel FDTD method and the application of the proposed device to focusing and frequency-selective properties of flat conical diffactive elements in THz waveband are described. Introduction of novels diffractive element in the THz waveband is described. If offers the potential to realize novel types of… (More)
Recent developments in active millimeter/THz waves high-qualtity 3D real-time imaging for scientific, medical and security applications are discussed. Such type of imaging systems affords a compact, simple, fast and relatively low-cost system.
We describe a technique to eliminate multipath fading in point to point communications. The technique exploits our ability to control relative phase between desired signals arriving in the antenna beam and of undesired multipath signals coming from outside of the beam direction. Using out ability to control relative phase, we can in principle reduce the… (More)
A new possibilities of a flat and conformal FZP-like lens and antennas in communications, indoor techniques, wireless and information security are offered and discussed.