Multi-octave transformer coupled differential amplifier for high dynamic range

Author

Meharry, D.E.

Author_Institution

Sanders, Nashua, NH, USA

fYear

1998

fDate

1-4 Nov. 1998

Firstpage

225

Lastpage

228

Abstract

A novel PHEMT MMIC broadband amplifier circuit has been developed which has extremely high dynamic range, as characterized by its second order distortion products. Amplifier small signal bandwidth is 4 to 16 GHz. Measured OIP2 of this circuit exceeds 60 dBm with a 1 dB compression point of approximately 5 dBm. This circuit outperforms a conventional amplifier, fabricated on the same wafer, by more than 30 dB. Because it utilizes a combination of two circuit techniques, the approach can be applied to different device technologies, for optimization of noise figure or other performance parameters.

Keywords

HEMT integrated circuits; MMIC amplifiers; differential amplifiers; electric distortion; integrated circuit noise; wideband amplifiers; 4 to 16 GHz; MMIC broadband amplifier; compression point; dynamic range; multioctave amplifier; noise figure; second order distortion products; small signal bandwidth; transformer coupled differential amplifier; Bandwidth; Coupling circuits; Differential amplifiers; Dynamic range; Frequency; Impedance matching; MMICs; Noise figure; Power amplifiers; Spirals;

fLanguage

English

Publisher

ieee

Conference_Titel

Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 1998. Technical Digest 1998., 20th Annual

Conference_Location

Atlanta, GA, USA

ISSN

1064-7775

Print_ISBN

0-7803-5049-9

Type

conf

DOI

10.1109/GAAS.1998.722677

Filename

722677