A W-band monolithic 175-mW power amplifier

“…Due to the high losses, when combining several MMIC power amplifier chips in millimeter-wave waveguide modules [1,2], it is desirable to obtain high output power from a single chip. Recently, power amplifiers with common source transistors on GaAs and InP have been published with excellent results [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

A Coplanar W-Band Power Amplifier MMIC Using Dual-Gate HEMTs

Tessmann

Haydl

Neumann

et al. 1999

1999 29th European Microwave Conference

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A two-stage monolithic W-band power amplifier has been developed, using 0.15 pm AlGaAs/InGaAs/GaAs dual-gate PM-HEMTs. The amplifier demonstrates a small signal gain of 15 dB and a maximum output power of 57 mW with an associated gain of 6 dB at 94 GHz. The circuit consists of two amplifier stages with a total gate width of 0.36 mm in the output stage. The use of coplanar technology and dual-gate HEMTs results in an over-all chip size of only lx 2 mm2.

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“…Recent advances in the upper frequency limit and output power of three terminal devices has now made it possible to consider them as an alternative to fundamental oscillator sources 15, 6,7]. 50 micron thick substrate, 0.…”

Section: Introductionmentioning

confidence: 99%

<title>W-band HEMT-based power-amplifier module for millimeter-wave LO multipliers</title>

et al. 1998

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We report on the performance of power amplifiers as local oscillator drivers for millimeter and submillimeter-wave receivers. A MMIC power amplifier based on 0. 1 micron GaAs HEMT technology on 50 micron thick substrate has been packaged in a waveguide block and characterized. Output power in excess of 100 mW is demonstrated over 88-94 GHz with more power easily achievable. The noise properties of the MMIC amplifier in multiplied local oscillator chains are characterized in a low noise superconductor-insulator-superconductor mixer based heterodyne receiver. A 386 GHz SIS mixer was used to characterize noise temperature in a laboratory environment. A more sensitive measurement of noise contribution from the amplifier was performed on a 278 GHz mixer/receiver at the Caltech Submillimeter-Wave Observatory, during astronomical observations. It is concluded that the MMIC amplifier does not add additional significant noise to the radiometer system.

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A W-band monolithic 175-mW power amplifier

Cited by 19 publications

References 4 publications

Breakdown in millimeter-wave power InP HEMTs: a comparison with GaAs PHEMT's

Breakdown in millimeter-wave power InP HEMTs: a comparison with GaAs PHEMT's

A Coplanar W-Band Power Amplifier MMIC Using Dual-Gate HEMTs

<title>W-band HEMT-based power-amplifier module for millimeter-wave LO multipliers</title>

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