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  2. Metamaterial antenna - Wikipedia

    en.wikipedia.org/wiki/Metamaterial_antenna

    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 ...

  3. Metamaterial - Wikipedia

    en.wikipedia.org/wiki/Metamaterial

    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 ...

  4. Category:Radio frequency antenna types - Wikipedia

    en.wikipedia.org/wiki/Category:Radio_frequency...

    Pages in category "Radio frequency antenna types" The following 110 pages are in this category, out of 110 total. ... Metamaterial antenna; Microstrip antenna ...

  5. Antenna types - Wikipedia

    en.wikipedia.org/wiki/Antenna_types

    The category of simple antennas consists of dipoles, monopoles, and loop antennas. Nearly all can be made with a single segment of wire (ignoring the break made in the wire for the feedline connection). [citation needed] Dipoles and monopoles called linear antennas (or straight wire antennas) since their radiating parts lie along a single ...

  6. Category:Metamaterials - Wikipedia

    en.wikipedia.org/wiki/Category:Metamaterials

    Metamaterials are artificial materials engineered to provide properties which may not be readily available in nature. These materials employ the inclusion of small inhomogeneities to enact effective macroscopic behavior.

  7. Tunable metamaterial - Wikipedia

    en.wikipedia.org/wiki/Tunable_metamaterial

    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.

  8. Photonic metamaterial - Wikipedia

    en.wikipedia.org/wiki/Photonic_metamaterial

    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.

  9. Fractal antenna - Wikipedia

    en.wikipedia.org/wiki/Fractal_antenna

    A fractal antenna is an antenna that uses a fractal, self-similar design to maximize the effective length, or increase the perimeter (on inside sections or the outer structure), of material that can receive or transmit electromagnetic radiation within a given total surface area or volume.