**HMC941LP4ETR: A High-Performance 24 GHz to 44 GHz GaAs pHEMT MMIC Low-Noise Amplifier**

The relentless push for higher data rates and greater bandwidth in modern communication and radar systems has intensified the demand for high-performance radio frequency (RF) components operating in the millimeter-wave (mmWave) spectrum. The **HMC941LP4ETR**, a Gallium Arsenide (GaAs) pseudomorphic High-Electron-Mobility Transistor (pHEMT) Monolithic Microwave Integrated Circuit (MMIC) Low-Noise Amplifier (LNA), stands out as a critical solution engineered to meet these exacting requirements. This device is specifically designed to provide exceptional signal amplification with minimal added noise across the **extremely broad frequency band of 24 GHz to 44 GHz**.

Fabricated on an advanced GaAs pHEMT process, the HMC941LP4ETR leverages the superior electron mobility and low-noise characteristics of this technology. This foundation enables the amplifier to achieve an outstanding **noise figure of just 2.0 dB** while simultaneously delivering a high **linear performance with an output IP3 of +25 dBm**. This combination of low noise and high linearity is paramount in sensitive receiver chains, as it ensures that weak desired signals are amplified significantly above the system's noise floor without being distorted by strong interfering signals.

A key feature of this MMIC LNA is its substantial **gain of 19 dB**, which remains remarkably flat across its entire operational bandwidth. This high gain helps to suppress the noise contribution from subsequent stages in the receiver, thereby improving the overall system sensitivity. The amplifier is also unconditionally stable, a critical design achievement for mmWave components that prevents oscillations and ensures reliable operation under various load conditions. Furthermore, the HMC941LP4ETR integrates DC blocking capacitors on both its RF input and output ports, simplifying the design-in process for engineers.

Housed in a compact, RoHS-compliant 4x4 mm QFN leadless package, the amplifier is designed for robust surface-mount assembly and excellent thermal performance. Its versatility makes it an ideal building block for a wide array of applications, including but not limited to:

* **Point-to-Point and Point-to-Multi-Point Radio Links**

* **Military and Commercial Radar Systems (e.g., 5G mmWave infrastructure)**

* **Satellite Communication (SATCOM) terminals**

* **Electronic Warfare (EW) and Electronic Countermeasures (ECM) systems**

* **High-Frequency Test and Measurement Equipment**

**ICGOOODFIND:** The HMC941LP4ETR is a premier mmWave low-noise amplifier that masterfully balances critical performance parameters. Its **exceptional combination of wide bandwidth, low noise figure, high gain, and superior linearity** makes it an indispensable component for advancing next-generation systems in communications, radar, and sensing, where extracting the faintest signal from noise is of utmost importance.

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