Antenna (radio) - Wikipedia
网页An antenna is an array of conductors (elements), electrically connected to the receiver or transmitter. Antennas can be designed to transmit and receive radio waves in all horizontal directions equally (omnidirectional antennas), or preferentially in a particular direction (directional, or high-gain, or "beam" antennas).
ANTENNA中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页antenna noun (NOTICING) [ C usually plural ] plural antennae or antennas. the natural ability to notice things and understand their importance. 感觉;直觉. Her finely-tuned …
Antenna | Types, Uses & Benefits | Britannica
网页2024年8月9日 · 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.
Antenna types - Wikipedia
网页There are three types of "simple" antennas: dipoles, monopoles, and loops. The three simple antenna types are all typically (but not necessarily) used on frequencies where they self-resonate. [a] "Simple" antennas are also used as building-blocks for the more complicated antenna types, such as composite antennas.
Best TV Antennas of 2024 - CNET
网页2024年7月23日 · The best TV antennas were able to pull in more channels than the others and delivered stronger, clearer TV signals, even on "problem" channels. Here are the seven TV antennas we looked at...
Antenna - Wikipedia
网页Antenna (radio), also known as an aerial, a transducer designed to transmit or receive electromagnetic (e.g., TV or radio) waves. Antenna types, a list of the many different types of radio and microwave antennas. Antennae Galaxies, the name of two colliding galaxies NGC 4038 and NGC 4039.
How an Antenna Works and more - YouTube
网页In this chapter we will see how antennas work, what are their physical principles, their main characteristics and the different types that exist. ...more.
How do antennas and transmitters work? - Explain that Stuff
网页2024年1月28日 · How antennas work. Suppose you're the boss of a radio station and you want to transmit your programs to the wider world. How do you go about it? You use microphones to capture the sounds of people's voices and turn them into electrical energy.
ANTENNA中文(繁體)翻譯：劍橋詞典 - Cambridge Dictionary
网页antenna noun (NOTICING) [ C usually plural ] plural antennae or antennas. the natural ability to notice things and understand their importance. 感覺;直覺. Her finely-tuned …
ANTENNA中文(繁体)翻译：剑桥词典 - Cambridge Dictionary
网页antenna noun (NOTICING) [ C usually plural ] plural antennae or antennas. the natural ability to notice things and understand their importance. 感覺;直覺. Her finely-tuned …