Title :
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
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;
Conference_Titel :
RF and Microwave Conference, 2004. RFM 2004. Proceedings
Print_ISBN :
0-7803-8671-X
DOI :
10.1109/RFM.2004.1411058
