LOW COST MINIATURE PHASE SHIFTER FOR L AND S BAND PHASED ARRAY

Abstract

Phase shifters are one of the most critical subsystems of a phased array antenna. The accuracy of the phase shifter depends on how accurately the phase and amplitude are changed without attenuation between the output and input ports. To verify the phase shift parameters such as cost, size, reliability, weight etc. a customized miniature phase shifter is presented with on-chip design using an IC 2484 operating at 2.45GHz frequency. The IC 2484 has outline dimensions of 11.43×20.43mm² with a thickness of 0.762mm and operates within 2.150 GHz to 2.484 GHz band. The insertion loss is -5.6dB, Voltage Standing Wave Ratio (VSWR) is 1.5:1, the weight is 3gms and  it operates at 2.45GHz frequency. The experimental results show that the insertion loss of -3.71dB and VSWR 1.33:1 are within the specified limits of the IC 2484.A comparison between the reported and presented work at L and S bands demonstrates that the presented work on the phase shifter gives a better performance with lower power consumption.