small dish with < 4 degree beam?

does anyone know of any dishes that are smaller than 24" that have very narrow beamwidth? I’m looking for something with < 4 degree beamwidth. Need to get around some city municipal codes that require a lot of work with > 24" dish.

They don’t exist. For smaller beamwidth (and higher gain), you either go larger in diameter like a dish or panel or longer like a yagi.

Tom

dang : ) I was afraid of that. Thanks Tom.