An ultra wideband transmitter based on up conversion architecture

2005 IEEE International Wkshp on Radio-Frequency Integration Technology: Integrated Circuits for Wideband Comm & Wireless Sensor Networks Pub Date : 1900-01-01 DOI:10.1109/RFIT.2005.1598868

Chao Fang, Yuanjin Zheng, C. Law

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引用次数: 6

Abstract

This paper presents a novel architecture of an ultra wideband (UWB) transmitter circuit. The transmitter is designed for high data rate wireless communication. It employs up conversion concept. The up conversion concept is to multiply Gaussian monocycle pulse with 6.4 GHz sine wave to push the spectrum of Gaussian monocycle pulse into higher frequency band. As a result, the FCC spectral mask can be used efficiently. The transmitter presented contains 6.4 GHz VCO source, divide-by-32 high frequency prescaler, Gaussian monocycle pulse generator, Gilbert cell BPSK modulator, differential to single converter, RF mixer and driven amplifier. The circuits are designed in 0.18 um RFCMOS technology from IMF (Institute of Microelectronics). Simulation showed the correct operation of the circuit for supply voltages of 1.8 V and a power consumption of 195 mW. And the transmitted pulse covers frequency bandwidth from 3.1 GHz to 10.6 GHz. All the circuit simulations are done by HPADS.

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一种基于上变频结构的超宽带发射机

提出了一种新型的超宽带(UWB)发射机电路结构。该发射机是为高数据速率无线通信而设计的。它采用向上转换的概念。上转换原理是将高斯单环脉冲与6.4 GHz正弦波相乘，将高斯单环脉冲的频谱推入更高的频段。因此，FCC频谱掩模可以被有效地利用。该发射机由6.4 GHz压控振荡器源、32分频高频预分频器、高斯单周期脉冲发生器、吉尔伯特单元BPSK调制器、差分到单变换器、射频混频器和驱动放大器组成。电路采用国际微电子研究所0.18 um RFCMOS技术设计。仿真结果表明，该电路在电源电压为1.8 V、功耗为195 mW时可以正常工作。传输的脉冲覆盖3.1 GHz到10.6 GHz的频率带宽。所有电路仿真均由HPADS完成。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2005 IEEE International Wkshp on Radio-Frequency Integration Technology: Integrated Circuits for Wideband Comm & Wireless Sensor Networks

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