Antenna

An antenna is a device that sends and receives television or radio signals.
A rod, wire, or other device used to transmit or receive radio or television signals; an aerial.

Antenna a device used to transmit and/or receive radio waves.

Sources:

Англійський словник Коллінза, електронний ресурс: https://www.collinsdictionary.com/

Словник Lexicoелектронний ресурс: www.lexico.com

Nick Brieger, Alison Pohl: Technical English Vocabulary and Grammar