RF bandpass filter design using capacitive degeneration Conference Paper

abstract

• This work proposes the use of a capacitively degenerated transconductor to construct an RF bandpass filter. The fundamental theoretical elements for the application of this technique are provided. First, the impedance seen from the source/emitter of a transistor with capacitive degeneration and an LC tank connected at its gate/base is analyzed. The conditions under which this impedance exhibits a large value in a narrow bandwidth are obtained showing good agreement between theoretical and simulated results. A general RF filter structure based on the analyzed active resonant cell is introduced and described with a macromodel. A sample 5.2GHz bandpass filter is designed for a SiGe BiCMOS 0.25m process. Simulation results for the designed RF filter show S21>6dB, Q>20 consuming 1mA from a 2.5V supply. 2005 IEEE.

name of conference

• 48th Midwest Symposium on Circuits and Systems, 2005.

authors

• Silva-Martinez, Jose

published proceedings

• 2011 IEEE 54th International Midwest Symposium on Circuits and Systems (MWSCAS)

author list (cited authors)

• Valdes-Garcia, A., Silva-Martinez, J., & Sanchez-Sinencio, E.

citation count

• 0

complete list of authors

• Valdes-Garcia, A||Silva-Martinez, J||Sanchez-Sinencio, E

publication date

• January 2005

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems  Journal

Digital Object Identifier (DOI)

• 10.1109/mwscas.2005.1594221

International Standard Book Number (ISBN) 10

• 0780391977

International Standard Book Number (ISBN) 13

• 9780780391970

start page

• 798-801 vol. 1

end page

• 801

volume

• 2005

URL

• http%3A%2F%2Fdx.doi.org%2F10.1109%2Fmwscas.2005.1594221