| CPC H01Q 19/193 (2013.01) [H01Q 5/30 (2015.01); H01Q 5/47 (2015.01); H01Q 13/02 (2013.01); H01Q 13/0258 (2013.01); H01P 1/182 (2013.01); H01P 3/06 (2013.01); H01Q 19/023 (2013.01)] | 14 Claims |

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1. A dual-band antenna feed comprising an axis, wherein the dual-band antenna feed comprises:
a lower frequency outer coaxial input;
a lower frequency outer coaxial turnstile;
a lower frequency outer coaxial horn, wherein the lower frequency outer coaxial turnstile is in communication with the lower frequency outer coaxial horn;
a higher frequency circular input located within the lower frequency outer coaxial input; and
a higher frequency horn in communication with the higher frequency circular input, wherein the higher frequency horn is located within the lower frequency outer coaxial horn;
wherein the dual-band antenna feed is fabricated as a single piece using metal additive manufacturing.
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