These are schematics and testbench of a Ka-Band PA published by Z. Liu, L. Wang, H. Fallah, Z. Chen and C. P. Yue, in "A Compact 28-GHz Transmitter Front-End with Co-Optimized Wideband Chip-Antenna Interface Achieving 18.5-dBm P1dB and 1.0-W/mm2 Power Density for Phased Array Systems," IMS 2024, Washington, DC, USA, 2024, pp. 239-242.