A phase element for introducing a phase shift pattern into...

Details A phase element for introducing a phase shift pattern into... A phase element for introducing a phase shift pattern into...

H - Electricity

01

Q

H01Q 1/38 (2006.01) H01Q 23/00 (2006.01)

Patent

CA 2712165

A thin electromagnetic phase shifting element, named phase and amplitude shifting surface (PASS), is disclosed. The PASS is capable of independently altering both the phase and the amplitude distribution of the electromagnetic fields propagating through the structure. The element comprises a few patterned metallic layers separated by dielectric layers. The patterns of the metallic layers are tuned to locally alter the phase and/or the amplitude of an incoming electromagnetic wave to a prescribed set of desired values for the outgoing electromagnetic wave. The PASS can be applied to design components such as gratings, lenses, holograms, and various types of antennas in the microwave, millimetre wave and sub-millimetre wave.

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