论文部分内容阅读
基于0.15μm GaAs PHEMT工艺,设计了一款K波段MMIC接收机,频率覆盖19～26 GHz。在单个芯片内集成了平衡式低噪声放大器、本振驱动放大器、镜像抑制次谐波混频器等电路。在19～26 GHz射频输入带宽内的转换增益为7 dB;噪声系数典型值为4 dB;输入回波损耗-12 dB;镜像抑制15 dB;本振-射频隔离度55 dB。为了降低了芯片成本,采用电磁场仿真软件对电路面积做优化设计,使得芯片面积仅为2 mm×4 mm。此接收机MMIC具有集成度高、可靠性高、体积小等特点,可广泛应用于各种微波通信系统和雷达系统。
Based on a 0.15μm GaAs PHEMT process, a K-band MMIC receiver is designed with 19-26 GHz frequency coverage. In a single chip integrated balanced low noise amplifier, LO driver amplifier, image rejection subharmonic mixer and other circuits. The conversion gain is 7 dB over a 19-26 GHz RF input bandwidth; the noise figure is typically 4 dB; the input return loss is -12 dB; the image rejection is 15 dB; LO-RF isolation is 55 dB. In order to reduce the chip cost, using electromagnetic field simulation software to optimize the circuit area design, making the chip area of only 2 mm × 4 mm. The receiver MMIC with high integration, high reliability, small size and other characteristics, can be widely used in various microwave communication systems and radar systems.