Amplifiers Boost Signals To 31.5 GHz

Feb. 9, 2011
A trio of amplifiers from Hittite Microwavetwo chips and one packaged deviceboost signals at frequencies through 31.5 GHz. Model HMC949 is one of the chips, a four-stage GaAs pHEMT amplifier capable of 2 W (+33 dBm) output power and 31 dB gain from 12 ...

A trio of amplifiers from Hittite Microwavetwo chips and one packaged deviceboost signals at frequencies through 31.5 GHz. Model HMC949 is one of the chips, a four-stage GaAs pHEMT amplifier capable of 2 W (+33 dBm) output power and 31 dB gain from 12 to 16 GHz with +35.5 dBm saturated output power with 26-percent power-added efficiency (PAE). It draws 1200 mA from a +7-VDC supply and measures 2.82 x 1.50 mm.

The other chip, model HMC950, is a four-stage, 4-W amplifier with 28 dB gain from 12 to 16 GHz. It delivers +37 dBm saturated output power with 23-percent PAE. The packaged GaAs pHEMT amplifier, model HMC943LP5E, provides 21 dB gain and 1.5 W output power from 24 to 31.5 GHz. It is supplied in a 5 x 5 mm plastic surface-mount package and draws 1200 mA from a +5.5-VDC supply.

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.

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