 ##  [Antenna](/antenna) 

  ##  [Antenna](https://engineering.quantumdictionary.io/antenna-0) 

  
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**Engineering &amp; Applied Technologies Dictionary**

 
Definition

A transducer that converts guided or localized electrical signals into free‑space electromagnetic waves for radiation (transmit) and converts received electromagnetic waves into guided electrical signals (receive); characterized by radiation pattern, impedance, polarization, bandwidth and gain.