Transformed lumped element integrated passive bandpass filters for gigahertz range spectrum monitor receivers


Liang, S. and Redman-White, W. (2011) Transformed lumped element integrated passive bandpass filters for gigahertz range spectrum monitor receivers. Electronics Letters, 47, (24), 1328-1330. (doi:10.1049/el.2011.1069).

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Description/Abstract

Two integrated bandpass filters have been designed and fabricated on standard 130 nm CMOS technology. The lumped element, third-order Butterworth bandpass filters at 9.45 and 1.75 GHz are designed for sub-band filtering in a spectrum monitoring receiver function in a future cognitive radio. A series coupled resonator topology is selected and a novel delta-star transformation technique is applied to obtain element values suitable for reliable fabrication on an integrated circuit. Occupying die areas of 780 × 200 μm and 1750 × 500 μm each, the filters achieve insertion losses of 15.6 and 8.6 dB, and band-widths of 1 GHz and 210 MHz, respectively, which are suitable for the chosen spectrum monitor receiver architecture.

Item Type: Article
ISSNs: 0013-5194 (print)
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > NANO
ePrint ID: 337751
Date Deposited: 02 May 2012 13:14
Last Modified: 27 Mar 2014 20:21
Further Information:Google Scholar
ISI Citation Count:0
URI: http://eprints.soton.ac.uk/id/eprint/337751

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