X-band Passive Circuits Using 3-D Printed Hollow Substrate Integrated Waveguides

Abstract

This paper investigates the use of additive manufacturing (AM) for the fabrication of hollow or air substrate integrated waveguides (SIW or reduced height waveguides). The method relies on additive manufacturing (3-D fabrication) using a simple resin printer. A bandpass filter and a slot antenna working in the X-band are demonstrated. The simulation and measured results match closely and show that low-cost table top resin printers can fabricate microwave passive components with good performance.