A 30 GHz Steerable Patch Array Antenna for Software-Defined Radio Platforms

We present design and simulation of a beam-steering patch antenna array that operates at 30 GHz. The antenna design includes feeding lines needed for connection to a software-defined radio (SDR) platform. Phase differences on the feeding lines are minimal and the impact of the feeding network on the gain is negligible at the operational frequency. Each patch element of the antenna has an associated 5-bit phase shifter allowing fine granularity beam-forming capability out of the array. The simulation results show that the antenna attains very similar gain patterns to ideal ones.