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2. Discone antenna - Wikipedia

   en.wikipedia.org/wiki/Discone_antenna

   The discone antenna has a useful frequency range of at least 10 to 1. [2] [3] When employed as a transmitting antenna, a properly constructed discone is just as efficient as an antenna designed for a more limited frequency range. The extra bandwidth comes from the controlled taper and large termination radius of the cone.

3. Biconical antenna - Wikipedia

   en.wikipedia.org/wiki/Biconical_antenna

   A common subtype is the bowtie antenna, essentially a flattened version of the biconical design which is often used for short-range UHF television reception. These are also sometimes referred to as butterfly antennas. [2] Sir Arthur Lodge is the inventor of the biconical antenna. [3] [4] Omnidirectional biconical antenna

4. Shortwave broadband antenna - Wikipedia

   en.wikipedia.org/wiki/Shortwave_broadband_antenna

   It is the only type of directional antenna that is directional ("beam" antenna) over its entire working range. discone antenna The discone is omnidirectional, vertically polarized, and has a gain similar to a dipole. It is equally efficient as a monopole and is exceptionally wideband, offering a frequency range ratio of up to approximately 10:1 .

5. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   A competing third criterion is the number and bandwidth of the frequenc(y/ies) that a single antenna intercepts or emits. A fourth design goal is to make the antenna directional: To project or intercept radio waves from only one vertical and / or horizontal direction as exclusively as possible. Simple antennas

6. Random wire antenna - Wikipedia

   en.wikipedia.org/wiki/Random_wire_antenna

   The radiation pattern of a thin wire antenna is easily predictable using antenna modeling.For a straight wire, the radiation pattern can be described by axially symmetric multipole moments with no component along the wire direction; as the length of the wire is increased, higher multipole contributions become more prominent and multiple lobes (maxima) at angles to the antenna axis develop. [4]

7. Turnstile antenna - Wikipedia

   en.wikipedia.org/wiki/Turnstile_antenna

   A turnstile antenna, or crossed-dipole antenna, [1] is a radio antenna consisting of a set of two identical dipole antennas mounted at right angles to each other and fed in phase quadrature; the two currents applied to the dipoles are 90° out of phase. [2] [3] The name reflects the notion the antenna looks like a turnstile when mounted ...

8. Talk:Discone antenna - Wikipedia

   en.wikipedia.org/wiki/Talk:Discone_antenna

   A biconic antenna is one way to create an "electrically large antenna". It generally behaves like a dipole with the following special considerations: rather than having a bandwidth of a few percent of the resonant frequency, it has an equivalently measured usable bandwidth of several octaves (practical numbers are implementation-specific, and ...

9. Reconfigurable antenna - Wikipedia

   en.wikipedia.org/wiki/Reconfigurable_antenna

   A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. [2] In order to provide a dynamic response, reconfigurable antennas integrate an inner mechanism (such as RF switches, varactors, mechanical actuators or tunable materials) that enable the intentional redistribution of the RF currents over the ...