公开(公告)号：US10431897B1

公开(公告)日：2019-10-01

申请号：US15382144

申请日：2016-12-16

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Hao Xin ,  Qi Tang ,  Adnan Kantemur

IPC: H01Q15/08 ,  H01P5/02 ,  H01L27/26

Abstract: The present invention features a microwave gain medium having a negative refractive index, which overcompensates for loss exhibited in conventional passive metamaterials. The design consists of sub-wavelength building blocks with embedded microwave tunnel diodes exhibiting a negative refractive index and a stable net gain. The negative resistance may also be used for dispersion compensation that may enable broadband response of metamaterials.