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CGH31240F

240-W; 2700 – 3100-MHz; 50-ohm Input/Output Matched GaN HEMT for S-Band Radar Systems

Wolfspeed’s CGH31240F is a gallium-nitride (GaN) high-electron-mobility transistor (HEMT) designed specifically with high-efficiency; high-gain and wide-bandwidth capabilities; which makes the CGH31240F ideal for 2.7 –3.1-GHz; S-band; radar-amplifier applications. The transistor is supplied in a ceramic/metal flange package.

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CGH31240F
Yes
GaN on SiC
2.7 GHz
3.1 GHz
240 W
12 dB
60%
28 V
Packaged Discrete Transistor
Flange
Features
  • 2.7 – 3.1 GHz Operation
  • 12 dB Power Gain
  • 60% Power Added Efficiency
  • < 0.2 dB Pulsed Amplitude Droop
Applications
  • S-Band Radar Amplifiers
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Technical Papers & Articles
by Raymond S. Pengelly – William Pribble – Thomas Smith
This Simulation of power amplifiers (PAs) for modern wireless base station and small cell systems is an essential part of the design process. At a cell site – the PA consumes the bulk of the dc power – generates the most heat – and thus represents the greatest operational cost. Maximum PA efficiency is a necessity to manage these costs – which is a sizeable challenge in a PA that also must be highly linear to support the complex multilevel modulation types and wide bandwidths used for current and developing wireless transmission standards. Accurate simulation allows the PA designer to meet these challenges by exploring the available design options and then optimizing the circuit that is selected for the application.
Technical Papers & Articles
by Raymond S. Pengelly – Simon M. Wood – James W. Milligan – Scott T. Sheppard – and William L. Pribble
Technical Papers & Articles
by Yifeng Wu and Primit Parikh – The vacuum tubes used in today’s millimeter-wave transmitters face an increasing threat from GaN HEMTs. Wolfspeed’s Yifang Wu and Primit Parikh are leading the GaN charge with designs that incorporate field plates – iron-doped buffer layers and a thin AIN interlayer to deliver a record power at 30 GHz.
Technical Papers & Articles
by Simon M. Wood – Ulf Andre – Bradley J. Millon – and Jim Milligan – This paper presents the design – development and characterization of three products for S-Band Radar applications. These products include two 240 Watt hybrid power transistors and a fully integrated 75 Watt packaged MMIC.
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.
Technical Papers & Articles
by Donald A. Gajewski – Scott Sheppard – Tina McNulty – Jeff B. Barner – Jim Milligan and John Palmour
This paper reports the reliability performance of the Wolfspeed – GaN/AlGaN HEMT MMIC process technology – fabricated on 100 mm high purity semi-insulating (HPSI) 4H-SiC substrates.
Technical Papers & Articles
by Ildu Kim – Jangheon Kim – Junghwan Moon – Jungjoon Kim – and Bumman Kim
Demonstrating a highly efficient Hybrid Envelope Elimination and Restoration transmitter for IEEE 802.16e Mobile WiMAX applications using a highly efficient saturated Power Amplifier (PA). For the optimum H-EER operation – the PA has been designed to have a maximum PAE at the average Vds region by using 10 W (P3dB ) GaN High Electron Mobility Transistor.
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Knowledge Center

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RF
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Aerospace & Defense

Thermal Considerations for High-Power GaN RF Amplifiers

Many RF applications require very long lifetimes with typical military and telecom use cases demanding more than 10 years of operation. Junction temperature Tj, or the temperature of the base semiconductor in the device, plays an important role in device reliability as does the substrate material in keeping the base semiconductor cool.
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