Monolithic Microwave Integrated Circuits (MMICs) integrate active devices (such as transistors) and passive network components (such as inductors, capacitors, and microstrip transmission lines) onto a single semiconductor substrate to operate within the microwave (300 MHz – 30 GHz) and millimeter-wave (30 GHz – 300 GHz) frequency spectrums.

While silicon CMOS remains the dominant technology for digital logic and low-frequency mixed-signal integrated circuits, Gallium Arsenide (GaAs) serves as a core III-V semiconductor material for high-frequency, low-noise, and high-efficiency RF front-end architectures.