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Cree : Microwave transistor offers record wideband efficiency



Cree, Inc. announces the sample release of a 90W, highly efficient GaN HEMT microwave transistor for general-purpose military and industrial applications such as electronic warfare, radar, tactical radios and EMC applications. This transistor provides superior performance over wide bandwidths compared to other technologies such as GaAs MESFET or Si LDMOSFET.

The new transistor, CGH40090PP, consists of a pair of GaN HEMT transistors providing over 90 watts of saturated power in a small, industry-standard Gemini ceramic-metal package. The exceptional performance of the transistor has been demonstrated in a balanced 500-MHz to 2500-MHz instantaneous bandwidth reference amplifier that offers 14 dB typical small-signal gain, 90 watts typical CW output power, and typical drain efficiencies of 55% over the entire band. This amplifier provides the best-known efficiency in the industry for any 5:1 bandwidth amplifier over this frequency range and power level.

“The CGH40090PP is an important addition to our general-purpose GaN HEMT product family that can be used in either push-pull or balanced amplifier designs. We are especially pleased that the reference design amplifier demonstrates state-of-the-art efficiency over such a wide frequency range. It is another example of how Cree's GaN HEMT products can enable highly efficient systems for our customers – the more efficient the amplifier, the less heat generated. This can positively impact system thermal design, cooling costs, size and weight, and DC power distribution,” said Jim Milligan, director of RF and microwave products at Cree.

The CGH40090PP complements the range of Cree's broadband GaN HEMT general-purpose microwave transistors now available at power levels of 10W, 25W, 35W, 45W and 90W.

Please call (919) 287-7816 or visit the Cree website at www.cree.com for more information about Cree's GaN HEMT devices.

Data sheets and sample ordering are also available: http://www.cree.com/products/wireless_products.asp

About Cree

Cree is leading the LED lighting revolution and setting the stage to obsolete the incandescent light bulb through the use of energy-efficient, environmentally friendly LED lighting. Cree is a market-leading innovator of lighting-class LEDs, LED lighting retrofit solutions, and semiconductor solutions for backlighting, wireless and power applications.

Cree's product families include recessed LED down lights, blue and green LED chips, high-brightness LEDs, lighting-class power LEDs, power-switching devices and radio-frequency/wireless devices. Cree solutions are driving improvements in applications such as general illumination, backlighting, electronic signs and signals, variable-speed motors, and wireless communications.

For additional product and company information, please refer to www.cree.com.


Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.


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