Two-Dimensional Barrage Jamming against SAR Using a Frequency Diverse Array Jammer

Abstract

Due to the modulation of tiny frequency offset on the array elements, a frequency diverse array (FDA) jammer can generate multiple range-dimension point false targets, and many deception jamming methods against SAR using an FDA jammer have been studied. However, the potential of the FDA jammer to generate barrage jamming has rarely been reported. In this paper, a barrage jamming method against SAR using an FDA jammer is proposed. To achieve two-dimensional (2-D) barrage effect, the stepped frequency offset of FDA is introduced to generate range-dimensional barrage patches, and the micro-motion modulation is employed to increase the extent of barrage patches along the azimuth direction. Mathematical derivations and simulation results demonstrate the validity of the proposed method in generating flexible and controllable barrage jamming.

A Multi-Aperture Technique for Longitudinal Miniaturization of UWB 3 dB Dual-Layer SIW Coupler

“…A microwave coupler is a key component in wireless systems and is characterized by its bandwidth and size, among other parameters. In many emerging systems, such as multi-beam array antenna [ 1 ], Nolen/Butler/Blass matrix [ 2 , 3 , 4 , 5 , 6 ], frequency diverse array radar [ 7 , 8 ] or load modulated balanced amplifier [ 9 ], microwave couplers are required in large numbers, and their miniaturization can lead to a significant size reduction in the overall sensing systems, such as radars, LiDARs and other test equipment such as vector network analyzers and radio communication testers.…”