Abstract This article discusses a proposed Higgs-Energy LEptoN (HELEN) e + - linear collider based on advanced traveling wave superconducting radio frequency technology. The offers cost and AC power savings, smaller footprint (relative to the ILC), could be built at Fermilab. After initial physics run 250 GeV, upgraded either higher luminosity or higher, up 500 energies.

design, simulation and optimal selection of cosine-linear frequency modulation waveform (cnlfm) based on correlated ambiguity function (af) method for the purpose of synthetic aperture radar (sar) is done in this article. the selected optimum cnlfm waveform in contribution with other waveforms are applied directly into a sar image formation algorithm (ifa) and their quality effects performance ...

Abstract The non-linear frequency modulation (NLFM) waveform is one of the existing waveforms that can be used in high range resolution radar applications. However, a sampling and consequently an expensive ADC are required. To overcome this drawback while taking advantage features NLFM waveform, we suggest approximating wideband by piecewise linear using it stepped (SF) framework. Thus, variabl...

Metasurfaces are ultrathin structures which constituted by an array of subwavelength scatterers with designable scattering responses. They have opened up unprecedented exciting opportunities for extraordinary wave engineering processes. On the other hand, frequency converters drawn wide attention due to their vital applications in telecommunication systems, health care devices, radio astronomy,...