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A 5 mm2 transceiver front-end suitable for a software-defined radio (SDR) platform is implemented in a 40-nm LP digital CMOS technology. Tailored for all modern communication standards relevant for a modern handheld mobile device (2G/3G/4G cellular, WLAN, Bluetooth, GPS, broadcasting, etc.), it uses radio architectures and circuits that ensure flexible performance at a minimal cost in area and power...
The signs are clear: competition among handset makers is forcing them to replace today's multiplicity of ad hoc standard-specific modules and associated RF passive filters and duplexers by a highly integrated universal transceiver platform that connects directly to the antenna. This platform, with the ability to tune continuously from 80 MHz to 6 GHz, should support all 2G and 3G cellular standards...
In this paper, we present the design, implementation, and evaluation of a custom-built wideband RF front-end for enabling dynamic spectrum access communications in software-defined radio platforms. The frontend is designed for wireless operation within the 50 MHz - 2.5 GHz frequency range, and is entirely software-controlled by the platform. Evaluation of the proposed design was conducted using the...
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