Topside radio frequency system consolidation with Gregorian parabolic antenna stacking

Shipboard platforms have numerous antennas crowding topside space. Consolidating these antennas would require having antennas with multi‐frequency capabilities. A Gregorian parabolic stacked antenna provides multi‐frequency capabilities on a single pedestal which reduces the number of antennas required on a US Navy shipboard platforms. This Letter depicts the simulated design and radiation pattern results of a 1.9 m Gregorian parabolic stacked antenna that is capable of operating at the X‐, K‐, Ka‐ and Q‐band frequencies at VSWR values <2:1. These frequency band capabilities allow for satellite communication links where two antennas that are currently fielded are operating within. The dual Gregorian parabolic stacked antenna presented is capable of operating at the same frequencies on a single antenna pedestal which would reduce the number of antennas required on shipboard platforms.