کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
556271 874390 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A 750 μW 3.5–4.5 GHz FM-UWB transmitter
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر سیستم های اطلاعاتی
پیش نمایش صفحه اول مقاله
A 750 μW 3.5–4.5 GHz FM-UWB transmitter
چکیده انگلیسی

This paper presents an ultra-low power frequency modulated ultra-wideband (FM-UWB) transmitter implemented in standard 130 nm CMOS technology. The transmitter operates in the range of 3.5–4.5 GHz with 4 GHz RF carrier frequency. The transmitter can accept input data rates up to 250 kbps. A relaxation oscillator is used to generate the subcarrier signal and a VCO for RF carrier generation. The center frequency of the VCO is periodically calibrated to avoid out of band operation. An integer-N phase-locked loop (PLL) is used for both subcarrier generation and RF VCO calibration, which needs only 500 ns to complete the calibration. A class-AB power amplifier is used to output the power under the FCC mask. The proposed FM-UWB transmitter consumes 750 μW from a 1.2 V supply.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electrical Systems and Information Technology - Volume 2, Issue 1, May 2015, Pages 133–140
نویسندگان
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