Nijmegen, The Netherlands, July 6, 2026 – Ampleon announces the B11G4450N91D, a fully integrated dual-section, three-stage 4.4–5.0 GHz Doherty MMIC driver — purpose-built as the macro driver stage in GaN final-dominated macro radio lineups, and designed to give radio architects a cleaner, faster path to lineup linearity.
GaN has rightly become the default for macro finals. But the driver stage — that critical link in the signal chain between your DSP and the GaN output — is where lineup linearizability is made or broken. A noisy, discrete, hard-to-match and characterize driver creates DPD headaches upstream and limits how much headroom your finals can actually deliver. The B11G4450N91D addresses this directly. Built on LDMOS — Ampleon's legacy technology with inherently superior AM-AM and AM-PM characteristics at driver power levels — it brings the linearity discipline the driver stage has been missing in a GaN-final world.
That linearity advantage is compounded by full integration: carrier and peaking amplifiers, input splitting, output combining and pre-matching networks all consolidated in one compact, well-characterised package. Fewer discrete components, a cleaner PCB, and consistent device-to-device behaviour that makes DPD model training faster and more repeatable across production runs.
At 35.4 dBm average output power with 29.4 dB gain and large instantaneous bandwidth across the full 4.4–5.0 GHz range, the B11G4450N91D gives your GaN finals the headroom they're rated for. Independent carrier and peaking bias control provides real tuning flexibility across operating modes, while 10:1 VSWR robustness and solid thermal management ensure stable performance under the continuous, high utilisation demands of 5G macro deployments.
The B11G4450N91D is available now through Ampleon's global distribution network. Reach out to your Ampleon sales contact or preferred distributor to discuss your lineup architecture — whenever you're ready to explore the fit, we're here to think it through with you.
For more information, visit:
www.ampleon.com/pip/B11G4450N91D
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For further information and reader inquiries:
Igor Lalicevic, Senior Director, Product Marketing,
Ampleon Netherlands B.V.,
Halfgeleiderweg 8, 6534 AV Nijmegen, The Netherlands,
Email: igor.lalicevic@ampleon.com,
www.ampleon.com
About Ampleon
Created in 2015 and headquartered in the Netherlands, Ampleon is shaped by nearly 60 years of RF power leadership. The company envisions to advance society through innovative RF solutions based on GaN and LDMOS technologies. Ampleon is dedicated to being the partner of choice by delivering high-quality, high-performance RF products with its world-class talent. The portfolio offers flexibility in scaling design and production for any volume and addresses applications for 4G LTE, 5G NR infrastructure, industrial, scientific, medical, broadcast, navigation and safety radio. Proven reliability, secure supply and excellent product consistency enable highest manufacturing yields for customers who benefit from Ampleon being a one-stop-partner for RF power solutions. For more details, please visit www.ampleon.com.