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Whip antenna on portable FM radio receiverWhip antenna on car
A whip antenna is an antenna consisting of a straight flexible wire or rod. The bottom end of the whip is connected to the radio receiver or transmitter. A whip antenna is a form of monopole antenna. The antenna is designed to be flexible so that it does not break easily, and the name is derived from the whip-like motion that it exhibits when disturbed. Whip antennas for portable radios are often made of a series of interlocking telescoping metal tubes, so they can be retracted when not in use. Longer whips, made for mounting on vehicles and structures, are made of a flexible fiberglass rod around a wire core and can be up to 11 m (35 feet) long.
The ideal length of the whip antenna is determined by the wavelength of the radio waves it is used with. The most common type is the quarter-wave whip, which is approximately 1 /4 wavelength long, but they can be either longer or shorter by design, varying from compact electrically short antennas 1/ 10 wavelength long, up to 5 /8 wavelength to improve directivity.
Whips are the most common type of monopole antenna, and are used in the higher frequency HF, VHF and UHF radio bands. They are widely used as the antennas for hand-held radios, cordless phones, walkie-talkies, FM radios, boom boxes, and Wi-Fi enabled devices, and are attached to vehicles as the antennas for car radios and two-way radios for wheeled vehicles and for aircraft. Larger versions mounted on roofs, balconies and radio masts are used as base station antennas for amateur radio and police, fire, ambulance, taxi, and other vehicle dispatchers.
A whipantenna is an antenna consisting of a straight flexible wire or rod. The bottom end of the whip is connected to the radio receiver or transmitter...
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this antenna in 1946. It is very popular in the United States. The antenna can be erected as horizontal dipole, as sloper, or an inverted-V antenna. With...
Operation Telic, the Saltire was seen to be flown from the communications whipantenna of vehicles belonging to these units. Funerals, conducted with full military...
base-loaded whipantennas, in applications where a full sized quarter-wave monopole would be too big. As with other electrically short antennas, the gain...
that efficient transmitting antennas are short enough to mount on vehicles and handheld devices, a quarter wave whipantenna at VHF frequencies is 25 cm...
transmitting antenna, or the result of radiation scattering off an object. Non-radiative near-field behaviors dominate close to the antenna or scatterer...
was 10 inches (25 cm) high, not including its flexible "rubber duck" whipantenna. In addition to the typical 12-key telephone keypad, it had nine additional...
attempting to find a signal. A standard whipantenna, which was later changed to a manually retractable antenna, was added to the outside of the front...
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