LoRaWAN系统中射频窄带频率合成器的实现

2017 International SoC Design Conference (ISOCC) Pub Date : 2017-11-01 DOI:10.1109/ISOCC.2017.8368868

Dong-Shik Kim, Won‐Sang Yoon, S. Chai

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引用次数: 1

摘要

设计并制作了一种窄带频率合成器，可在同一芯片上产生868MHz(欧洲)和915MHz(北美)两个频段。它将作为LoRaWAN系统应用。测量结果表明，频率合成器的带宽为1670 ~ 1,972MHz(中心频率比约16.57%)，在50μA电荷泵输出电流和300μA电荷泵输出电流下的低相位噪声特性分别为- 83.74dBc/Hz和- 86.81dBc/Hz。

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Implementation of RF narrow band frequency synthesizer for LoRaWAN system

A narrowband frequency synthesizer has been designed and fabricated to generate two bands of 868MHz(Europe) and 915MHz(North America) with a same chip. It will be applied as the LoRaWAN system. Measurement results show that the frequency synthesizer has bandwidth of 1,670 ∼ 1,972MHz(about 16.57% center frequency ratio), and low phase noise characteristics of −83.74dBc/Hz at 50μA charge pump output current and −86.81dBc/Hz at 300μA charge pump output current on 100KHz offset.

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2017 International SoC Design Conference (ISOCC)

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