<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">horn antennas</topic></authority><related type="broader"><topic>antennas by form</topic></related><variant type="other"><topic>antennae, horn</topic></variant><variant type="other"><topic>antennas, hoghorn</topic></variant><variant type="other"><topic>antennas, horn</topic></variant><variant type="other"><topic>electromagnetic horns</topic></variant><variant type="other"><topic>hoghorn antennas</topic></variant><variant type="other"><topic>horn antenna</topic></variant><variant type="other"><topic>horn radiators</topic></variant><variant type="other"><topic>horns</topic></variant><variant type="other"><topic>horns, electromagnetic</topic></variant><variant type="other"><topic>radiators, horn</topic></variant> <note xml:lang="en"><![CDATA[ Microwave antennas with flared-out waveguides, whether rectangular, square, or circular in section or straight, curved, folded, or bifurcated in length. ]]></note></mads>