antenna vs electrical device

antenna and electrical device both are nouns.

Word	Noun	Adjective	Verb	Adverb
antenna	Yes	No	No	No
electrical device	Yes	No	No	No

As nouns, electrical device is a hypernym of antenna; that is, electrical device is a word with a broader meaning than antenna:

antenna: an electrical device that sends or receives radio or television signals
electrical device: a device that produces or is powered by electricity

antenna (noun)	electrical device (noun)
one of a pair of mobile appendages on the head of e.g. insects and crustaceans; typically sensitive to touch and taste	a device that produces or is powered by electricity
an electrical device that sends or receives radio or television signals
sensitivity similar to that of a receptor organ