Wideband Characterization of Single Parabolic Cylindrical Compact Range for Linear Array Feeds

Compact antenna ranges test (CATR) are commonly used for antenna testing and radar cross section measurements. The single parabolic cylindrical reflector (SPCR) compact range with a linear array feed can enhance aperture efficiency while maintaining high-quality quiet zone performance, thereby reducing the cost of measuring large equipment. This paper investigates the wideband characteristics of SPCR compact range. Firstly, the system design of the SPCR compact range with a linear array feed is introduced. Next, the wideband optimization function and optimization methods are discussed. Full-wave simulations and system experiments in the sub-6G operating frequency band are then conducted. The designed compact range achieves a high-quality quiet zone with an aperture efficiency of 60-70%, demonstrating the effectiveness and feasibility of the proposed method.