Broadband RF feedback amplifier design with simple feedback network

Author

Marzuki, A. ; Zainal, T. ; Zulkifli, A. Z. ; Noh, Norlaili Mohd ; Aziz, Z.A.A.

Author_Institution

Sch. of Elect. & Electron. Eng., Universiti Sains Malaysia Eng. Campus, Seberang, Malaysia

fYear

2004

fDate

5-6 Oct. 2004

Firstpage

1

Lastpage

4

Abstract

The paper presents a simple and fast design technique for an RF feedback amplifier. The amplifier uses a series resistor and capacitor as the feedback element. An overview of the amplifier impedance analysis and the noise theory of the amplifier is presented. A high frequency passive component model is also presented. With a current consumption of 6 mA, the simulated amplifier features a noise figure of 2.4 dB and an S₂₁ of 14.7 dB at 2 GHz. It achieves a very flat S₂₁ over 50 MHz to 2.5 GHz.

Keywords

Ge-Si alloys; MMIC amplifiers; UHF amplifiers; VHF amplifiers; circuit simulation; electric impedance; feedback amplifiers; integrated circuit design; integrated circuit noise; nonlinear network synthesis; random noise; wideband amplifiers; 2.4 dB; 50 MHz to 2.5 GHz; 6 mA; LNA; MMIC amplifier; SiGe; amplifier impedance analysis; broadband RF amplifier; broadband RF feedback amplifier; broadband amplifier; current consumption; low-noise amplifier; noise figure; silicon germanium process; Broadband amplifiers; Circuits; Feedback amplifiers; Impedance matching; Impedance measurement; MMICs; Noise figure; Radio frequency; Radiofrequency amplifiers; Scattering parameters;

fLanguage

English

Publisher

ieee

Conference_Titel

RF and Microwave Conference, 2004. RFM 2004. Proceedings

Print_ISBN

0-7803-8671-X

Type

conf

DOI

10.1109/RFM.2004.1411058

Filename

1411058