Development of an Ultra-Wideband Channelization Receiver for Electronic Support
Dae-Gyu Choi, Chang-Ryul Yun, Kyu-Song Lee · The Journal of Korean Institute of Electromagnetic Engineering and Science · 2023
This study develops an ultra-wideband channelization receiver for electronic warfare support equipment that detects, collects, and identifies non-communication signals using C-K bands, such as radar and missile seekers. This study presents a direct sampling receiver structure that can receive an instantaneous bandwidth of at least 1.8 GHz and a one-step frequency conversion superheterodyne receiver structure. We apply the polyphase filter banks structure for channelization of the instantaneous bandwidth as well as obtain the final structure and design parameters considering the overlap between channels to design ultra-wideband polyphase filter banks that channelizes an instantaneous bandwidth of at least 1.8 GHz. Furthermore, we present simulation results. Finally, we fabricate an ultra-wideband channelization receiver by applying the proposed receiver structure and validate its receiving performance through a signal injection test.