资料介绍
射频系统CMOS8¤>nO Lecture 1, Sept. 16, 2003
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1. 8X{H
2. y
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3. y8¤>óE
4. 8ê>X
5. XVg
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The Convergence of Wireless Systems
2/100
Wireless LAN Mobile Telephony
(mobile computing) (cellular phone)
(Semi-) portable Portable
High data rate Low data rate
IEEE 802.11b (1999) European GSM (digital cellur)
11 Mbps, 2.4 GHz 8-12 Kbps, 900 MHz
IEEE 802.11a (1999) IS-95 Qualcomm CDMA
22(-54) Mbps, 5 GHz GSM GPRS (2.5G)
IEEE 802.11g (2003) WCDMA (3G)
20+(-54) Mbps, 2.4 GHz 3.84 Mbps (384 Kbps-2 Mbps),
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