Fabrication of Integrated Power Divider and Filter for X Band Radar Applications

This paper presents the prototype of power divider that integrated with filter for X-band radar applications. The prototype was designed and fabricated on a single board using substrate duroid RT5880 which has a relative permittivity of 2.2 and the thickness of 0.78 mm. In this research, Wilkinson power divider and coupled line filter are used base on their benefit. The simulation and measurement show that the prototype has a high performance to be applied in 9.3 GHz radar antenna system. Improvement of return loss achieves by integrating power divider and filter. Comparing with the conventional type, the prototype was proven to reduce loss power by 8%.