30-W; 13.75 to 14.5-GHz; 40-V; GaN MMIC Power Amplifier

Wolfspeed’s CMPA1D1E030D is a gallium-nitride (GaN) high-electron-mobility transistor (HEMT) based monolithic-microwave integrated circuit (MMIC) on a silicon carbide substrate; using a 0.25-μm gate-length fabrication process. GaN-on-SiC has superior properties compared to silicon; gallium arsenide or GaN-on-Si; including higher breakdown voltage; higher saturated-electron-drift velocity and higher thermal conductivity.

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GaN on SiC
13.75 GHz
14.5 GHz
30 W
26 dB
40 V
MMIC Bare Die
  • 27 dB Small Signal Gain
  • 30 W Typical PSAT
  • Operation up to 40 V
  • High Breakdown Voltage
  • High Temperature Operation
  • Satellite Communications Uplink
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Technical Papers & Articles
by Raymond S. Pengelly – Simon M. Wood – James W. Milligan – Scott T. Sheppard – and William L. Pribble
Technical Papers & Articles
by Jeremy K. Fisher – Donald A. Gajewski – Thomas J. Smith
Technical Papers & Articles
by Donald A. Gajewski – Wolfspeed
Randall D. Lewis – Northrop Grumman Corp.
Benjamin M. Decker – Northrop Grumman Corp.
Technical Papers & Articles
by Donald A. Gajewski – Scott Sheppard – Simon Wood – Jeff B. Barner – Jim Milligan – and John Palmour.
This paper discusses the reliability performance of Wolfspeed GaN/AlGaN high electron mobility transistor (HEMT) MMIC released process technologies – fabricated on 100 mm high purity semi-insulating (HPSI) 4H-SiC substrates.
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Radar / Avionics

Improving Pulse Fidelity in RF Power Amplifiers

A radar system designer’s most coveted objectives are achieving a long range, adequate resolution to distinguish objects in close proximity to each other, and the ability to not only determine target velocities but target types in order to help differentiate friendlies from adversaries.A combination of both approaches is essential, and engineers can design for peak power points of the load-pull simulation while also paying attention to other parts of the circuit for baseband signal fidelity.
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