I have always wondered, wouldn't it be pretty easy to create a missile that follows a radar wave to it's source? A fighter plane could use this very missile to shut down a fighter plane chasing it or a ground radar scanning it.
https://www.livescience.com/38861-carrots-eyesight-myth-orig...
Missile launch sites are located separately from radar sites so they can’t be targeted (since they have no radar emissions themselves) and so that pilots don’t know ahead of time where to look for missile plumes for visual indicators of a launch.
All of these sites are networked so can feed information across a large region and back to a hardened command center far away. Sharing information this way allows minimizing the amount of time between a vulnerable front-line system revealing its location and launching a missile at its target. Tracking radar and missile sites can even wait to become active until a hostile aircraft is over or even past them to defeat wild-weasel style tactics.
Both tracking radar and missile sites are also often mobile so once they’ve disclosed their location by using radar and/or firing a missile, they can quickly move to a new location to avoid retaliatory strikes from anti-radiation missiles and regain the element of surprise.