Article | GigaHertz 2003. Proceedings from the Seventh Symposium | A variable gain MMIC amplifier

Title:
A variable gain MMIC amplifier
Author:
Anowar Masud: Chalmers University of Technology, Microwave Electronics Laboratory, Sweden Mattias Ferndahl: Chalmers University of Technology, Microwave Electronics Laboratory, Sweden Herbert Zirath: Chalmers University of Technology, Microwave Electronics Laboratory, Sweden \ Ericsson AB, Microwave and High Speed Research Center, Sweden
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Full text (pdf)
Year:
2003
Conference:
GigaHertz 2003. Proceedings from the Seventh Symposium
Issue:
008
Article no.:
046
No. of pages:
4
Publication type:
Poster
Published:
2003-11-06
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


A variable gain single ended MMIC amplifier is demonstrated. A maximum gain of 13 dB with a control range of 13 dB is obtained at 2.5 GHz. The -3 dB bandwidth is 5 GHz. The circuit consists of a cascode input stage with an active load followed by a source follower for impedance transformation. A GaAs pseudomorphic HEMT technology is used for the implementation. The active circuit area is less than 1 mm2.

GigaHertz 2003. Proceedings from the Seventh Symposium

Author:
Anowar Masud, Mattias Ferndahl, Herbert Zirath
Title:
A variable gain MMIC amplifier
References:

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[9] T. Kashiwa; M. Komaru; T. Katoh; N. Yoshida; N. Tanino; T. Takagi; O. Ishihara; “A Q-band high gain and low noise variable gain amplifier using dual gate HEMTs”; 1995 IEEE Symposium on Gallium Arsenide Integrated Circuit; Technical Digest; pp. 210-213; 1995.


[10] T. Kashiwa; T. Katoh; T. Ishida; Y. Kojima; Y. Mitsui; “A High-Performance Ka-Band Monolithic Variable-Gain Amplifier Using Dual-Gate HEMT’s”; IEEE Microwave and Guided Wave Letters; vol. 7; no. 8; pp. 251-252; Aug. 1997.


[11] B. Razavi; Design of Analog CMOS Integrated Circuits; McGraw-Hill Education; 2000

GigaHertz 2003. Proceedings from the Seventh Symposium

Author:
Anowar Masud, Mattias Ferndahl, Herbert Zirath
Title:
A variable gain MMIC amplifier
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