Ams/rf-cmos Circuit Design For Wireless Transceivers

摘要

Mobile phones have evolved from "simple" devices allowing phone calls over a wireless link to "all-in-one" devices. Besides keeping us always best connected, handheld devices have become true multimedia centers where we can watch movies or our favorite team's soccer game while making a phone call or chatting over the internet. Hence, in mobile terminals, multi-standard capability is to be supported without compromising performance levels or battery life. As we move from third generation (3G) to fourth generation (4G) wireless and beyond, and as we strive to meet the demands for higher data rates and short-distance wireless applications, a debate has ensued on whether cellular and WLAN/WiMAX are seen as complementary or competing technologies. In either case, wireless services beyond third generation (B3G) are moving to all-intellectual property (IP), always-best-connected, convergent wireless solutions requiring access to different wireless infrastructures from the same wireless device, be it a cell phone, a laptop or a PDA for a multitude of services, including voice, data and multimedia applications. For future handheld wireless devices, this requires low-power, low-cost, multi-standard, multi-band chipsets, the radio part of which will be increasingly complex with stringent demands on power consumption and cost as the two main differentiators.