BIST辅助的MB-UWB发射机宽带数字补偿

2009 12th International Symposium on Design and Diagnostics of Electronic Circuits & Systems Pub Date : 2009-04-15 DOI:10.1109/DDECS.2009.5012104

S. Devarakond, Shreyas Sen, A. Chatterjee

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引用次数: 2

摘要

最近对能够提供短距离、高速数据传输的无线标准的需求加速了超宽带(UWB)标准的发展。MB-OFDM(多频带正交频分复用)UWB设备由于极端宽带操作(3.1至10.6 GHz)而遭受频率依赖的非理想性。此外，当在纳米技术中实现时，这些特性受到工艺变化的影响。在本文中，我们提出了两种BIST辅助的方法来估计和补偿这些影响。建议的解决方案在硬件和软件权衡方面有所不同。通过一组过程实例和所涉及的权衡，提出了混合器线性度的改进，以验证所提出的方法。

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BIST assisted wideband digital compensation for MB-UWB transmitters

The recent demand in wireless standards capable of providing short-range, high-speed data transfer has accelerated the growth of the Ultra-Wide Band (UWB) standard. MB-OFDM (Multi Band Orthogonal Frequency Division Multiplexing) UWB devices suffer from frequency dependent non-idealities due to extreme wideband operation (3.1 to 10.6 GHz). Further these characteristics are subjected to process variations when implemented in nanometer technologies. In this paper we propose two BIST assisted methodologies for estimation and compensation of these effects. The proposed solutions differ in hardware vs. software tradeoffs. The improvement in the linearity of the mixer over a set of process instances and the tradeoffs involved are presented to validate the proposed methodology.

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2009 12th International Symposium on Design and Diagnostics of Electronic Circuits & Systems

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