研究目的
Design and measurement of X-Band monolithic microwave integrated circuit (MMIC) low noise amplifiers (LNA) using a commercial 0.25 um microstrip GaN-on-SiC high electron mobility transistor (HEMT) technology to achieve lower than 1.75 dB noise figure (NF) and higher than 16 W CW input power survivability from a single chip.
研究成果
Highly robust, compact, and low noise amplifiers (LNA) were designed and realized with a commercial 0.25 um GaN-on-SiC technology. With the inclusion of novel active limiting circuitry, the highest input power handling performance for the given noise figure level in X-band from a single chip is achieved.
研究不足
Recovery time is significantly larger than the 200–300 ns usually required for X-Band Radar applications.