MODELLING A PHASE STEERING ARRAY ANTENNAS USING A DUAL-BAND PHASE SHIFTER MODEL WITH ANTENNA MERGED WAVEGUIDE

Abstract

This research presents a novel continuous controlled phase shifter network that uses an adjustable phase shifter known as the Dual Band Phase Shifter Model (DBPSM) with Antenna Merged Waveguide (AMW) which has a phase tuning range of 90? and the other two of 180? for adjusting the progressive phase difference at the matrix network's output ports. The phase difference in the 90? range can be tailored for each input stimulus when all phase shifters are simultaneously controlled using two-channel digital voltages. Only four input ports must be switched to achieve the progressive phase difference over its full 360? range. Researchers conduct a theoretical analysis of the scenario and develop closed-form equations that minimize the number of phase shifters and their phase tuning ranges, thereby reducing the control complexity. The design theory is verified by producing an iteration of the suggested tunable AWM at 5.8 GHz. The results of the experiment and simulation agree on most points. It is possible to guide the observed radiation phase between -51? and 52? by combining two control voltage adjustments with four patch antenna elements. Keywords: Phase shifter-relaxed feeding network, waveguide, tunable phase difference, control-relaxed steering