Rave, ChristianChristianRaveJacob, Arne F.Arne F.Jacob2020-12-072020-12-072020-12IEEE Transactions on Microwave Theory and Techniques 68 (12): 5328-5334 (2020-12)http://hdl.handle.net/11420/8144This article reports a solid-state power amplifier module in low-temperature cofired ceramic (LTCC) technology. For compactness and low loss, the package utilizes substrate-integrated waveguides (SIWs). To meet the thermal requirements, the amplifiers are mounted on a metallic plate that is integrated into the LTCC multilayer and transfers the heat to a spreader. Both RF and thermal measurement results for a package with two integrated 10-W gallium nitride (GaN) power amplifiers at the K-band are presented. They demonstrate the suitability of the module for highly integrated transmitters as needed for phased arrays or multiple-feed-per-beam satellite antennas.en0018-948020201253285334Allgemeines, WissenschaftJournal Article10.1109/TMTT.2020.3019013Other