A Monolithic Patch Antenna on a Semi-insulated Alumina (Al2O3) Substrate for Active Integrated Antenna

Abstract

Small antenna technology is very important for monolithic patch antenna on semiconductor substrate. The active integrated antenna is analyzed by using cavity model and method of moment. Alumina substrate doped with gold is a new substrate having the resistivity more than 10 6 (Ω · cm). This substrate yields good performance for the monolithic patch antenna and it is easy to fabricate with the active integrated antenna In addition, a small antenna using the alumina substrate is obtained and applied to monolithic microwave integrated circuit. The computed numerical results are in good agreement with the measured results.