Atilla, Çağdas DoğuAlsaedi, Mustafa Oudah HaniAlsaadi, Hajir Adil Jasim2024-07-212024-07-212023Atilla, D. Ç., Alsaedi, M. O. H., Alsaadi, H. A. J. (2023). Design a wideband class-j power amplifier. 9th International Conference on Engineering and Emerging Technology, ICEET 2023. 10.1109/ICEET60227.2023.105259609798350316926https://hdl.handle.net/20.500.12939/4774This paper presents the modern design and simulation of a broadband Class-J power amplifier (CJPA) tailored for enhancing military radar systems, especially those operating in the critical L-band spectrum. Motivated by the need for improved radar performance, our research aims to achieve higher efficiency and power output through the meticulous application of load pull and source pull techniques in the input and output matching circuit design to obtain the input and output impedance for active device at maximum power to match them with 50 Ω by design matching circuits using Smith chat utility. This study utilizes the GaN HEMT CGH40025F and focuses on designing and simulating a CJPA operating in the 1.6 to 2 GHz frequency range for the L-band. The test results demonstrate that the CJPA outputs around 40 dBm when the input power is 24 dBm, with a notable power added efficiency (PAE) of 63% and a transducer gain of 16 dB within the band. The simulation and testing were conducted using the Keysight ADS software. The significance of these findings lies in the enhanced capabilities they bring to military radar systems, with the potential for improved target detection, tracking, and overall system performance. Moreover, the optimized CJPA design may find applications beyond military settings, contributing to advancements in RF amplifier technology for diverse communication and sensing systems.eninfo:eu-repo/semantics/closedAccessADSCJPAHEMTLoad pullPASource pullConference Object2-s2.0-85194063296N/A