A GSM-GPRS/UMTS FDD-TDD/WLAN 802.11a-b-g multi-standard carrier generation system

A compact carrier generation system enabling proper interoperability among quad-band GSM, WCDMA (FDD and TDD), and WLAN (802.11a/b/g) standards is developed. The implementation is achieved in 0.25-mum BiCMOS-SiGe process. The measured tuning range is higher that 1 GHz (3.05 to 4.1 GHz) exceeding the...

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Veröffentlicht in:	IEEE journal of solid-state circuits 2006-07, Vol.41 (7), p.1513-1521
Hauptverfasser:	Koukab, A., Yu Lei, Declercq, M.J.
Format:	Artikel
Sprache:	eng
Schlagworte:	3G mobile communication Analog front-end (AFE) Applied sciences Carriers Circuit properties Circuits of signal characteristics conditioning (including delay circuits) Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology frequency synthesizer GSM Hardware Input-output equipment Local area networks multi-standard Multiaccess communication Noise Noise measurement Offsets Oscillators, resonators, synthetizers Phase measurement Phase noise phase-locked loop (PLL) Specifications Standards development Tuning UMTS voltage-controlled oscillator (VCO) Voltage-controlled oscillators Wireless communication wireless communications Wireless LAN WLAN
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Zusammenfassung:	A compact carrier generation system enabling proper interoperability among quad-band GSM, WCDMA (FDD and TDD), and WLAN (802.11a/b/g) standards is developed. The implementation is achieved in 0.25-mum BiCMOS-SiGe process. The measured tuning range is higher that 1 GHz (3.05 to 4.1 GHz) exceeding the specifications by 25%. The voltage-controlled oscillator (VCO) exhibits a phase noise of -118 and -125 dBc/Hz measured, respectively, at 400 kHz and 1 MHz offsets while drawing 2.5 mA from 2.5 V supply. The measured phase noise at 400 kHz offset of the PCS/DCS output local-oscillator (LO) signal and the GSM output LO signal is, respectively, -124 dBc/Hz and -130 dBc/Hz
ISSN:	0018-9200 1558-173X
DOI:	10.1109/JSSC.2006.873928