Design Issues for Direct-Conversion Wireless Radios

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  • Author: Gary Breed
Direct-conversion (D-C) is the cho-sen architecture for many, perhaps most, new designs for cellu-lar/PCS/3G radios, plus many WLAN and other wireless devices. D-C (also called “zero-IF”) has reached this level of acceptance because of its ability to reduce the size, parts count and cost of the radio portion of wireless devices.