The designs of magneto-electric (ME) dipole antennas and 4 × 4 planar arrays on low-temperature cofired ceramic (LTCC) substrates are presented for radio-over-fiber (ROF) systems. The ME dipole antenna covers the four 2.16 GHz channels defined in the 60 GHz band from 57 to 66 GHz. It can be used as a 4 × 4 planar antenna array element for high gain performance. The results show that the proposed antenna array achieves a variation of peak gain from 15.0 to 18.1 dBi and a peak gain up to 17.67 dBi at 60 GHz. It is revealed that our design satisfies the 60 GHz standards ruled by IEEE 802.15.3c.