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首页> 外文期刊>IEEE microwave magazine >Multiband LNAs for Software-Defined Radios: Recent Advances in the Design of Multiband Reconfigurable LNAs for SDRs in CMOS, Microwave Integrated Circuits Technology
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Multiband LNAs for Software-Defined Radios: Recent Advances in the Design of Multiband Reconfigurable LNAs for SDRs in CMOS, Microwave Integrated Circuits Technology

机译：用于软件定义的无线电的多频带LNA：用于CMOS中SDR的多频带可重新配置LNA设计的最新进展，微波集成电路技术

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摘要

The last decade has witnessed an increasing number of wireless standards for civil, military, and space communications. Along with the advances in integrated circuit (IC) technologies and the ever-growing requirements of high data rates, next-generation radios are expected to operate over multiple frequency bands. For example, carrier aggregation is used in LTE-Advanced radios to increase the bandwidth. However, it is challenging for traditional radios to operate over multiple frequency bands. In response to this, software-defined radios (SDRs) have been proposed to handle multiple bands through reconfiguration. They can adapt carrier frequency, transmission bandwidth, modulation, and encoding schemes by modifying digital signal processing (DSP) software algorithms [1]. In contrast to SDR, legacy communication systems are approaching their capability limits. They usually operate on a single band and require dedicated hardware. Thus, SDR is a promising radio technology to increase the flexibility of radio devices and reduce hardware and manufacturing costs, chip size, and power consumption [2].
机译：过去十年目睹了民事，军事和空间通信的无线标准越来越多。随着集成电路（IC）技术的进步以及高数据速率的不断增长的要求，预计下一代无线电将在多个频带上运行。例如，载波聚合用于LTE-Advanced无线电，以增加带宽。然而，传统无线电在多个频带上运行是挑战。响应于此，已经提出了软件定义的无线电（SDR）通过重新配置来处理多个频带。它们可以通过修改数字信号处理（DSP）软件算法来适应载波频率，传输带宽，调制和编码方案[1]。与SDR相比，传统通信系统正在接近其能力限制。它们通常在单个频段上运行并需要专用硬件。因此，SDR是一种有前途的无线电技术，可以提高无线电设备的灵活性，降低硬件和制造成本，芯片尺寸和功耗[2]。

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