X-band substarte integrated Rotman Lens with ±24° scanning capability

This paper presents a novel substrate integrated waveguide (SIW) for X-band sensing applications. It employs a SIW Rotman Lens (RL) as a beam switching network. A prototype lens is designed with 7 beam ports and 9 array ports. The simulated results around the frequency of 10-GHz demonstrate the validity of the proposed design and scanning capability over (-24°, +24°). Throughout this paper, the design process of the proposed microwave lens for X-band sensing application is demonstrated in details.