Submillimeter wave device and RF unit for PTMP system

摘要

In recent years, submillimeter wave systems such as point-to-multipoint (PTMP) systems have spread throughout the world. To meet the demand for millimeter wave units of smaller size and lower cost, we have developed a compact 26 GHz band RF unitfor domestic PTMP systems.To achieve this compact millimeter wave unit, we developed some specialized monolithic microwave integrated circuits (MMICs) and integrated transmit and receive circuits on one board, and utilized a dielectric diplexer. For submillimeter wave circuits, we adopted multichip packages in which some bare chips (submillimeter wave MMICs) were installed.