three-band antenna
1Antenna measurement — techniques refers to the testing of antennas to ensure that the antenna meets specifications or simply to characterize it. Typical parameters of antennas are gain, radiation pattern, beamwidth, polarization, and impedance.The antenna pattern is… …
2Antenna (radio) — Whip antenna on car …
3Antenna tuner — An antenna tuner, transmatch, or antenna tuning unit (ATU) matches a transceiver with a fixed impedance (typically 50 ohms for modern transceivers) to a load (feed line and antenna) impedance which is unknown, complex or otherwise does not match …
4Antenna farm — The dish farm at the Raisting Satellite Earth Station complex and Telehouse, Germany s largest satellite communications facility in Raisting, Bavaria, Germany. Antenna farm or satellite dish farm or just dish farm are terms used to describe an… …
5Quad antenna — patent US2537191 A quad antenna. The quad antenna is an …
6Discone antenna — Mounted discone antenna designed for VHF and UHF coverage …
7Evolved antenna — Evolved antennas are antennas designed fully or substantially by an automatic design procedure mimicking Darwinian evolution. The first evolved antenna designs appeared in the mid 1990s from the work of Michielssen, Altshuler, Linden, Haupt, and… …
8Metamaterial antenna — This Z antenna tested at the National Institute of Standards and Technology is smaller than a standard antenna with comparable properties. Its high efficiency is derived from the Z element inside the square that acts as a metamaterial, greatly… …
9Dipole antenna — A schematic of a half wave dipole antenna connected to an unbalanced coaxial cable. Better practice is to connect the balanced dipole to the unbalanced line with a balun. A dipole antenna is a radio antenna that can be made of a simple wire, with …
10FM broadcast band — The FM broadcast band, used for FM broadcast radio by radio stations, differs between different parts of the world. In Europe and Africa (ITU region 1), it spans from 87.5 to 108.0 megahertz (MHz), while in America (ITU region 2) it goes only… …
