  Beamforming makes possible a focused communication method. It is extensively
employed in many disciplines involving electromagnetic waves, including arrayed
ultrasonic, optical, and high-speed wireless communication. Conventional beam
steering often requires the addition of separate active amplitude phase control
units after each radiating element. The high power consumption and complexity
of large-scale phased arrays can be overcome by reducing the number of active
controllers, pushing beamforming into satellite communications and deep space
exploration. Here, we suggest a brand-new design for a phased array antenna
with a dimension reduced cascaded angle offset (DRCAO-PAA). Furthermore, the
suggested DRCAO-PAA was compressed by using the concept of singular value
deposition. To pave the way for practical application the particle swarm
optimization algorithm and deep neural network Transformer were adopted. Based
on this theoretical framework, an experimental board was built to verify the
theory. Finally, the 16/8/4 -array beam steering was demonstrated by using
4/3/2 active controllers, respectively.
