A low-noise low-IF 0.18μm CMOS receiver IC with an active on-chip channel-selection filter for 5GHz wireless applications
In: NEC research & development, Jg. 43 (2002), Heft 4, S. 314-319
academicJournal
- print, 7 ref
Zugriff:
We have developed a low-noise one-chip receiver IC using a low-IF architecture. The IC includes an active channel-selection band pass filter (BPF) for the IEEE802.11a standard. To improve both its total noise figure (NF) and image-rejection ratio, we employ an RC-bridge-type phase shifter which provides a ±45° phase difference. An overall NF as low as 11dB and a 32dB image-rejection ratio was achieved with the 0.18μm CMOS IC, which comprises low-noise amplifiers (LNAs), image-rejection mixers, a quadrature voltage-controlled oscillator (VCO), a phase-locked loop (PLL), the BPF, and IF amplifiers.
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A low-noise low-IF 0.18μm CMOS receiver IC with an active on-chip channel-selection filter for 5GHz wireless applications
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Autor/in / Beteiligte Person: | YANO, Hitoshi ; HORI, Shinichi ; MAEDA, Tadashi ; MATSUNO, Noriaki ; NUMATA, Keiichi ; FUJII, Masahiro ; YOSHIDA, Nobuhide ; TAKAHASHI, Yuji ; HIDA, Hikaru |
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Zeitschrift: | NEC research & development, Jg. 43 (2002), Heft 4, S. 314-319 |
Veröffentlichung: | Tokyo: NEC Creative, 2002 |
Medientyp: | academicJournal |
Umfang: | print, 7 ref |
ISSN: | 0547-051X (print) |
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