A 0.18 μm CMOS single-balanced mixer with LO cancellation for MB-OFDM UWB direct conversion receiver applications
✍ Scribed by Bonghyuk Park; Seungsik Lee; Songcheol Hong; Sangsung Choi
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 339 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
This article presents an effective methodology for designing a CMOS single‐balanced down conversion mixer with LO cancellation for MB‐OFDM UWB direct‐conversion receiver. The most crucial drawback of single‐balanced mixer; LO feedthrough is overcome by employing BPF technique for multi‐channel LO signal. The proposed single‐balanced mixer is implemented with 0.18 μm CMOS technology and it operates from 3 to 5 GHz frequency range. The measurement result shows that LO signal amplitude is less than IF signal, the IIP3 is 1 dBm at 4‐GHz band, and the current consumption is 6 mA. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2555–2558, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22793