RF Microwave and Millimeter Wave Devices and Circuits and Their Applications

<p>This Special Issue titled RF Microwave and Millimeter Wave Devices and Circuits and Their Applications presents a comprehensive overview of recent innovations in the design of high-frequency systems and of their multidisciplinary applications. The selected contributions span a wide array of domains-from power amplifiers mixers and phase shifters to advanced antenna arrays and metamaterial-inspired filters-demonstrating how the latest breakthroughs in circuit topology device architecture and packaging techniques are enabling the creation of high-performance systems at frequencies ranging from only a few to tens of gigahertz. We hope that this Special Issue will serve as both a valuable reference and a source of inspiration for engineers researchers and industry practitioners working at the frontier of RF microwave and millimeter wave technologies.</p>