DESIGN OF AN UNEQUAL WILKINSON POWER DIVIDER FOR VHF RADAR APPLICATIONS

Current radars must meet the technological demands of today's world, which is why the modernization, replacement or design of any of its parts is a strategic step. The antenna unit does not escape this reality. In it, it is usual to find several blocks amoung which are the power dividers, especially in radars that use antenna array and in particular air exploration radar such as P18 and P12 use an unequal Wilkinson power divider at the center frequency of 160 MHz of the Very High Frequency (VHF) band with a power ratio at the ourput ports of 60%-40%. The calculation of the components is carried out in Mathcad and the lumped circuit is simulated in AWR Microwave Office. From the results, Return Loss (RL) of -45.18 dB, isolation between the output ports of -49dB and power ratio at the output of s31=-2.21dB and s21=-3.98 dB in ports 3 and 2 respectively.