High Power Microwave Sources And Technologies Using Metamaterials

Metamaterials mtm are artificial periodic structures which support reversed cherenkov radiation and backward wave propagation.

High power microwave sources and technologies using metamaterials.

Unfortunately the low directivity and. Besides the arbitrarily dual band microwave components ultra wide bandpass filters and other compact microwave devices and antennas 50 54 using lc circuit metamaterials in the early stage we took full advantage of gradient refractive index grin metamaterials to invent high performance lens antennas 55 61. Light source of 1632 8 nm is used for excitation of five. However practical manifestations of such a device operating at high power densities have proven difficult to achieve due to the resonant nature of metamaterials and the resultant high electric fields which place severe constraints on.

We have demonstrated two operational high power mtm sources one generating 5 mw at s band and the other generating 100 mw in l band. Recently the use of coding metamaterials has been suggested for the control of electromagnetic waves through the design of coding sequences using digital elements 0 and 1 which possess. We have concluded that mtms have greatly expanded the parameter space for dispersion engineering for beam wave interaction. A method of wirelessly transferring power from a source to a receiver is by means of electromagnetic near fields.

Metamaterials mtms can be exploited as new means of high power microwave generation. Since the first demonstra tion of negative refractive index using metamaterials. Was used as t he microwave source for the 95 ghz. By using metamaterials researchers at duke university s center for metamaterials and integrated plasmonics cmip have discovered a way to wirelessly transmit power over much greater distances.

Press 2004 modern microwave and millimeter wave power electronics eds. Microwave sources transform the kinetic energy of an electron beam into microwaves through the interaction of the electrons with a periodic slow wave structures sws. The goal of this dissertation is to design novel metamaterials for high power microwave devices. Barker booske luhman and nusinovich.

High power microwave sources and technologies eds. Metamaterials have been considered part of certain design efforts since 1968 as a potential means of improving antenna performance. 1 because of its small size and ease of integration into many different high frequency circuits microstrip antennas have been quite popular for use at microwave frequencies. For over the last decade the concept of metamaterials has led to new approaches for considering the interaction of radiation with complex structures.