**HMC369LP3ETR: A 24 GHz GaAs MMIC Medium Power Amplifier for Point-to-Point Radio and SATCOM**

The relentless growth in global data traffic demands robust, high-performance wireless infrastructure, particularly in the high-frequency spectrum where wider bandwidths are available. At the heart of these advanced communication systems, from **high-capacity point-to-point backhaul links to sophisticated satellite communications (SATCOM)**, lies the critical component of the power amplifier. The **HMC369LP3ETR from Analog Devices Inc. stands out as a premier solution**, engineered to deliver exceptional performance in the challenging 24 GHz Ka-band.

This amplifier is a **monolithic microwave integrated circuit (MMIC)** fabricated on a high-performance Gallium Arsenide (GaAs) process. GaAs technology is chosen for its superior electron mobility compared to silicon, enabling efficient operation at microwave and millimeter-wave frequencies. The HMC369LP3ETR integrates a multi-stage amplifier into a single, compact chip, which simplifies design-in and improves reliability by minimizing the number of discrete components required on the board.

A key specification for any power amplifier is its output capability. The HMC369LP3ETR delivers a **saturated power output (PSAT) of up to +27 dBm** and operates efficiently with a typical **power-added efficiency (PAE) of 25%**. This combination of **medium power output and high efficiency** is crucial for reducing DC power consumption and managing thermal loads in densely packed radio units, a common challenge in outdoor equipment. Furthermore, the amplifier provides a substantial **small-signal gain of 24 dB**, which helps in overcoming losses in the system chain and ensures a strong, clean signal is transmitted.

The device is housed in a leadless, RoHS-compliant 3x3 mm QFN package, making it suitable for surface-mount technology (SMT) assembly and ideal for space-constrained applications. Its performance is tailored for the 23 – 25 GHz frequency range, covering bands essential for modern **5G backhaul networks and high-throughput satellite uplinks/downlinks**. The integrated design also incorporates on-chip bias control and temperature compensation, enhancing stability and performance consistency over varying environmental conditions.

**ICGOOODFIND:** The HMC369LP3ETR is a highly integrated, high-performance GaAs MMIC power amplifier that provides an optimal blend of output power, gain, and efficiency for 24 GHz systems. It serves as a critical enabling technology for designers building the next generation of point-to-point radios and SATCOM terminals, offering a reliable and compact solution that simplifies design and accelerates time-to-market.

**Keywords:** GaAs MMIC, Power Amplifier, 24 GHz, SATCOM, Point-to-Point Radio