RF3928B 380W GaN Wideband Pulsed Power Amplifier

RFMD’s new RF3928B is a 65V 380W high power discrete amplifier designed for S-Band pulsed radar, Air Traffic Control and Surveillance, and general purpose broadband amplifier applications. The RF3928B is a matched GaN transistor in a hermetic, flanged ceramic package. This package provides thermal stability through the use of advanced heat sink and power dissipation technologies. Ease of integration is accomplished through the incorporation of simple, optimized matching networks external to the package that provide wideband gain and power performance in a single amplifier.

Features

Wideband Operation 2.8GHz to 3.4GHz
Advanced GaN HEMT and Heat-Sink Technologies
Optimized Evaluation Board Layout for 50Ω Operation
Integrated Matching Components for High Terminal Impedances
65V Operation Typical Performance:
- Pulsed Output Power 380W
- Small Signal Gain 13dB
- Drain Efficiency 50%
- -40°C to 85°C Operating Temperature

Applications

Radar
Air Traffic Control and Surveillance
General Purpose Broadband Amplifiers

For more information on RF3928B, visit
https://estore.rfmd.com/RFMD_Onlinestore/Products/RFMD+Parts/PID-P_RF3928B.aspx.

Want early design analysis without simulation?

Sponsored by Siemens Digital Industries Software

Traditional verification methods are failing today's complex IC designs, which require a proactive, early-stage analysis approach. A shift-left methodology addresses IP block integration challenges and the limitations of traditional simulation and ERC tools. Insight Analyzer detects hard-to-find leakage issues across power domains, enabling early analysis without full simulation. Identify inefficiencies earlier to reduce rework, improve reliability, and enhance power performance.

Click to read more!

featured chalk talk

GaN for Humanoid Robots

Sponsored by Mouser Electronics and Infineon

In this episode of Chalk Talk, Eric Persson and Amelia Dalton explore why power is the key driver for efficient and reliable robot movements and how GaN technologies can help motor control solutions be more compact, integrated and efficient. They also investigate the role of field-oriented control in humanoid robotic applications and why the choice of a GaN power transistor can make all the difference in your next humanoid robot project!

Click here for more information about Infineon Technologies Motor Control Solutions for Humanoid Robots

Apr 20, 2026

14,178 views

RF3928B 380W GaN Wideband Pulsed Power Amplifier

Related