If you're an audiophile looking for an inexpensive new fix, this one's for you. Hong Kong-based Hidizs has packed a tiny but capable DAC into a USB-C cable that connects to IEMs (in-ear monitors), so ...
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 ...