**HMC943APM5ETR: A High-Performance 24 GHz to 44 GHz GaAs pHEMT MMIC Low-Noise Amplifier**

The **HMC943APM5ETR** represents a significant advancement in **monolithic microwave integrated circuit (MMIC)** technology, specifically engineered for **high-frequency, low-noise applications** across the **K-band and Ka-band spectrum**. Operating from **24 GHz to 44 GHz**, this amplifier is a critical component in modern systems such as **5G millimeter-wave communication networks, satellite communications, electronic warfare (EW) systems, and advanced radar applications**.

Fabricated using a **high-reliability 0.15 µm GaAs pseudomorphic High-Electron-Mobility Transistor (pHEMT)** process, the HMC943APM5ETR is designed to deliver **exceptional gain and ultra-low noise figure**. It achieves a **typical gain of 22 dB** across its operational bandwidth, ensuring signal integrity in the most demanding chains. A standout feature is its remarkably **low noise figure of just 2.0 dB**, which is paramount for preserving the signal-to-noise ratio (SNR) in sensitive receiver front-ends, enabling the detection of weak signals that would otherwise be lost.

The amplifier is architected for **ease of integration into a wide range of systems**. It requires a **single positive supply voltage between +3V and +5V**, simplifying power management. Furthermore, it incorporates **on-chip DC blocking capacitors at both the RF input and output ports**, as well as **on-chip bias networks**, which significantly reduce the need for external components and minimize the overall footprint on the printed circuit board (PCB). Its matched 50-Ohm input and output further streamline the design-in process.

Housed in a compact, **5-lead, 1.5 mm x 1.5 mm LFCSP package**, the device is suitable for **high-density designs** and is capable of supporting **surface-mount technology (SMT) assembly**, making it ideal for volume production. Its robust performance, characterized by a **high output IP3 of +20 dBm**, ensures excellent linearity and the ability to handle larger input signals without distortion.

**ICGOOODFIND**: The HMC943APM5ETR is a premier solution for designers seeking a combination of **wide bandwidth, high gain, and ultra-low noise** in the millimeter-wave region. Its highly integrated design simplifies implementation, while its GaAs pHEMT technology guarantees the performance and reliability required for next-generation aerospace, defense, and telecommunications systems.

**Keywords**: **Millimeter-wave**, **Low-Noise Amplifier (LNA)**, **GaAs pHEMT**, **Wideband**, **MMIC**.