Antenna Types

On the Reference Mission spacecraft, we'll need 3 types of antennas to transmit data back to Earth and in space. There would be one Ku-band antenna, which would be a steerable dish. The S-band antennas (we would need a couple of them) would look like a couple of cans on a T-shaped stalk:

                      ~24"          ~24"
              -----   boom    __    boom   -----   On the end is a
             |     |=========|__|=========|     |  round can, about 4"
              -----           ||           -----   diam X 8" long.
                       ~60"   ||
                        boom  ||
                              ||
                            mounting
                          apparatus

The VHF antennas would be a number of plain whips, scattered around the external surface of the spacecraft.