The research suggests replacing Phase Shifters that use electrically programmable unit cells for reflecting arrays in the Ka-band to control the reflection phase more independently. We may electronically control phase using tuneable devices like PIN diodes without costly transmit/receive modules. Beam-forming technology development has focused on overcoming propagation constraints in the millimetre wave range. The low profile, straightforward array assembly, and feeding of the microstrip patch antenna make it an excellent choice for a reflecting surface. Numerous switch configurations and placements have been considered by mounting the PIN diode on the unit cell. The performance of the EM Simulation tool has been evaluated at 28 GHz for VSWR, impedance bandwidth, angular stability, and phase fluctuations. The result is then used as the foundation for a 2 × 2 array. This array was investigated using common and separate biasing circuits for each unit cell. For the common biasing scenario, the achieved phase coverage ranges from 75˚ to 110˚, while for the individual biasing case, the acquired phase ranges from 70˚ to 180˚. This endeavour may be crucial to Intelligent Reflecting Surfaces.