Antennas are an essential component of modern communication systems. They are used to transmit and receive signals in various applications, including radio, television, mobile phones, and satellite communication. In this article, we will explore the definition and meaning of antennas, their origin, and associations.
Definitions
An antenna is a device that converts electrical signals into electromagnetic waves and vice versa. It is a transducer that radiates or receives electromagnetic waves. Antennas are used to transmit and receive radio waves, microwaves, and other types of electromagnetic radiation.
Origin
The word antenna comes from the Latin word “antenna,” which means “sail yard” or “yardarm.” The term was first used in the early 20th century to describe the wire or rod used to transmit and receive radio signals. The term was later extended to describe any device used to transmit or receive electromagnetic waves.
Meaning in different dictionaries
According to Merriam-Webster, an antenna is “a metallic device for sending or receiving electromagnetic waves.” Oxford Languages defines an antenna as “a rod, wire, or other device used to transmit or receive radio or television signals.” The Cambridge Dictionary defines an antenna as “a long, thin part of an insect’s body that it uses to feel and sense things.”
Associations
Antennas are associated with communication, technology, and innovation. They are used in various applications, including radio and television broadcasting, mobile phones, satellite communication, and radar systems. Antennas are also associated with insects, as they use their antennae to sense their environment.
Synonyms
Synonyms of antenna include aerial, transmitter, receiver, dish, and parabolic reflector.
Antonyms
Antonyms of antenna include receiver, transmitter, and dish.
The same root words
The word antenna is derived from the Latin word “antenna,” which means “sail yard” or “yardarm.” The same root word is used in other words, such as antenatal, which means “before birth,” and antennule, which is a small antenna.
Example Sentences
- The radio station installed a new antenna to improve its signal.
- The satellite dish has a built-in antenna for receiving signals.
- The insect uses its antennae to sense its environment and communicate with other insects.
- The radar system uses a parabolic reflector as an antenna to detect objects in the air.
- The mobile phone has a small antenna built-in for transmitting and receiving signals.