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Antenna designs incorporating metamaterials can improve the radiated power of an antenna. The newest metamaterial antennas radiate as much as 95 percent of an input radio signal. Standard antennas need to be at least half the size of the signal wavelength to operate efficiently. At 300 MHz, for instance, an antenna would need to be half a meter ...
Metamaterial antennas are a class of antennas that use metamaterials to improve performance. [15] [21] [85] [86] Demonstrations showed that metamaterials could enhance an antenna's radiated power. [15] [87] Materials that can attain negative permeability allow for properties such as small antenna size, high directivity and tunable frequency ...
Kymeta was founded in August 2012 after spinning out from Intellectual Ventures and manufactures software-enabled, meta-materials based electronic beamforming antennas and terminals for satellite communications. [2] Founder Nathan Kundtz served as the CEO until 2018. [3]
The Tonal 2 is an in-home, all-in-one gym focused on resistance training. The device itself is like a thick mirror, with adjustable metal arms that unfold for use and then tuck away for storage.
The EM metamaterial as an artificially designed transmission medium, has so far delivered desired responses at frequencies from the microwave through to the near visible. [6] The introduction of a natural semiconductor material within or as part of each metamaterial cell results in a new design flexibility.
A comparison of refraction in a left-handed metamaterial to that in a normal material Video representing negative refraction of light at uniform planar interface. One can choose to avoid directly considering the Poynting vector and wave vector of a propagating light field, and instead directly consider the response of the materials. Assuming ...
Negative-index metamaterial or negative-index material (NIM) is a metamaterial whose refractive index for an electromagnetic wave has a negative value over some frequency range. [ 1 ] NIMs are constructed of periodic basic parts called unit cells , which are usually significantly smaller than the wavelength of the externally applied ...
A photonic metamaterial (PM), also known as an optical metamaterial, is a type of electromagnetic metamaterial, that interacts with light, covering terahertz , infrared (IR) or visible wavelengths. [1] The materials employ a periodic, cellular structure.