Non-resonant antenna and feed apparatus therefor

A monopole radiating antenna configured for a predetermined center frequency and having a predetermined desired radiation impedance and an input connector, said antenna comprising,

• a base plate,
• an upstanding metallic radiator blade mounted above said plate,
• driving element means mounted to one face of said blade for providing radiating energy to said blade, and wherein
• a high impedance coaxial cable stub extending upwardly on said plate and extending along a lower portion of the vertical dimension of the blade, said stub comprising a center conductor and an outer conductor jacket, and wherein
• said center conductor of said stub extends beyond the upper end of the outer jacket of said stub and is electrically connected to said jacket, and wherein
• the other end of said stub is positioned above said plate and said center conductor of said stub extends beyond said other stub end and is electrically coupled to said plate, and wherein
• the portion of said blade nearer the plate includes a recess formed between two parts extending toward the plate, and wherein the lower portion of said stub extends into the recess.

A monopole radiating antenna configured for a predetermined center frequency and having a predetermined desired radiation impedance, said antenna comprising,

• a base plate,
• and an input connector mounted through said base plate and having an input center conductor
• an upstanding metallic radiator blade mounted above said plate,
• a high impedance coaxial cable stub extending upwardly on said plate and extending along a lower portion of the vertical dimension of the blade, and
• said coaxial cable stub including a center conductor and an outer conductor jacket, and
• an inductor for electrically coupling said center conductor to said plate, and
• a driving element comprising a metal tubular member for coupling input signals from said input center conductor to said outer conductor jacket.