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antenna    音标拼音: [ænt'ɛnə]
n. 天线,触须,触角

天线,触须,触角

antenna
天线

antenna
n 1: an electrical device that sends or receives radio or
television signals [synonym: {antenna}, {aerial}, {transmitting
aerial}]
2: sensitivity similar to that of a receptor organ; "he had a
special antenna for public relations" [synonym: {antenna},
{feeler}]
3: one of a pair of mobile appendages on the head of e.g.
insects and crustaceans; typically sensitive to touch and
taste [synonym: {antenna}, {feeler}]

Antenna \An*ten"na\, n.; pl. {Antenn[ae]}. [L. antenna
sail-yard; NL., a feeler, horn of an insect.]
1. (Zool.) A movable, articulated organ of sensation,
attached to the heads of insects and Crustacea. There are
two in the former, and usually four in the latter. They
are used as organs of touch, and in some species of
Crustacea the cavity of the ear is situated near the basal
joint. In insects, they are popularly called horns, and
also feelers. The term in also applied to similar organs
on the heads of other arthropods and of annelids.
[1913 Webster]

2. (Electronics) A metallic device, variously shaped,
designed for the purpose of either transmitting or
receiving radio waves, as for radio or television
broadcasting, or for transmitting communication signals.
Some types are: {whip antenna}, {antenna tower}, {horn
antenna}, {dish antenna}, {directional antenna} and
{rabbit ears}. See {transmitter}, {receiver}.
[PJC]

29 Moby Thesaurus words for "antenna":
aerials, barb, barbel, barbule, bedspring type, cat whisker,
directional antenna, dish, doublet, feed-and-reflector unit,
feeler, mast, mattress type, palp, palpus, reflector,
rhombic antenna, scanner, strike radar scanner, tactile cell,
tactile corpuscle, tactile hair, tactile organ, tactile process,
tactor, tower, transmitting antenna, vibrissa, wave antenna



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  • The Best Digital TV Antennas for 2025 - PCMag
    If you want to cut the cord but keep live TV, you need the right antenna to tune into over-the-air broadcasts Here's what you need to know, along with our top picks
  • TV Antenna: HDTV Digital TV Antennas - Best Buy
    Get sharp pictures from your local stations with TV antennas from Best Buy Shop indoor outdoor digital TV antennas or an amplified HDTV antenna for indoor use
  • TV Antennas Audio Video Antennas: Electronics - amazon. com
    Shop through a wide selection of TV Antennas at Amazon com Free shipping and free returns on Prime eligible items
  • What are antennas and how do they work? - TechTarget
    An antenna is a specialized transducer that converts electric current into electromagnetic (EM) waves or vice versa Antennas are used to transmit and receive nonionizing EM fields, which include radio waves, microwaves, infrared radiation ( IR ) and visible light
  • Antenna Basics - Antenna Theory
    A fundamental list of antenna theory concepts, an antenna basics menu is given here Topics include directivity, polarization, bandwidth, impedance, frequency bands, all things necessary for an understanding of antenna theory, antenna basics and antenna fundamentals
  • How do antennas and transmitters work? - Explain that Stuff
    Antennas and transmitters are the key to virtually all forms of modern telecommunication Let's take a closer look at what they are and how they work! Photo: A truck-mounted satellite dish antenna Photo by courtesy of NASA Glenn Research Center and Internet Archive
  • Antenna | Types, Uses Benefits | Britannica - Encyclopedia Britannica
    Antenna, component of radio, television, and radar systems that directs incoming and outgoing radio waves Antennas are usually metal and have a wide variety of configurations, from the mastlike devices employed for radio and television broadcasting to the large parabolic reflectors used to receive
  • TV Antennas, HDTV Antennas, Digital Antennas, Indoor + Outdoor Antennas . . .
    Modern antennas let you receive both analog signals and digital signals, which most TV stations now use There are two types of antennas: Outdoor TV antennas and Indoor TV Antennas
  • How an Antenna Works: Principles, Types, and Limitations
    An antenna is a device that transmits or receives electromagnetic waves, acting as a critical interface between electrical signals in a circuit and the electromagnetic radiation that propagates through space In simple terms, antennas make it possible for information to travel wirelessly, whether it’s a call from your mobile phone, a Wi-Fi
  • Antennas Direct | TV Antennas Reinvented
    Our line of TV antennas are the world's most comprehensive and powerful antennas you can find Our specialists will help you choose the best antenna for your home or office





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