{"message":"Yagi-Uda Antenna Design API","version":"1.0.0","description":"Comprehensive antenna design and analysis system","endpoints":{"core_designers":["/dg7ybn","/dk7zb","/dl6wu","/wa5vjb"],"calculations":["/antenna-gt","/eme","/propagation","/atmospheric","/ionospheric","/satellite","/terrestrial"],"analysis":["/nec"],"documentation":"/docs","openapi":"/openapi.json"},"features":["Literature-compliant calculations","Complete antenna design workflows","EME capability assessment","Propagation modeling","Atmospheric effects","JSON serialization for frontend integration"]}