一种增益可多重调节的低功耗双频段低噪声放大器

发布时间：2018-12-07 14:03

【摘要】：为了同时满足无限局域网(wireless local area network,WLAN)和新一代无限保真(wireless fidelity,WIFI)无线通信标准,设计实现了一款增益可多重调节的低功耗双频段低噪声放大器(dual-band low noise amplifier with multiple gain-tunability,MGT-DBLNA).输入级采用串-并联谐振滤波网络以实现双频段输入匹配.放大级采用可调谐的有源电感作负载和偏置电压可变的电流复用结构,一方面,可通过调节有源电感的外部偏压和偏置电路的电压2种不同方式,对MGT-DBLNA的增益进行单独或联合调节,另一方面降低了功耗.输出级采用由电流镜以及共集电极放大器构成的可控缓冲器,可实现增益的进一步调节.基于WIN 0.2μm Ga As HBT工艺库进行验证,结果表明:在不同工作频率2.4、5.2 GHz下,MGT-DBLNA的增益(S21)可分别在3.9~12.3 d B、12.6~20.2 d B范围内调节;输入回波损耗(S_(11))与输出回波损耗(S_(22))均小于-10.0 d B;噪声系数(noisefigure,NF)小于3.4 d B;在5.0 V的工作电压下,静态功耗小于20.0 m W.所提出的MGT-DBLNA不仅实现了增益的大范围调节,同时也降低了功耗.
[Abstract]:In order to meet the wireless communication standards of both infinite local area network (wireless local area network,WLAN) and new generation infinite fidelity (wireless fidelity,WIFI), A low power dual band low noise amplifier (dual-band low noise amplifier with multiple gain-tunability,MGT-DBLNA) is designed and implemented. The input stage uses a series-parallel resonant filter network to achieve two-band input matching. The amplifier stage adopts the tunable active inductor as the load and the bias voltage variable current multiplexing structure. On the one hand, the external bias voltage of the active inductor and the voltage of the bias circuit can be adjusted in two different ways. The gain of MGT-DBLNA is adjusted alone or in combination, on the other hand, the power consumption is reduced. The output stage uses a controllable buffer composed of a current mirror and a common collector amplifier to further adjust the gain. Based on the WIN 0.2 渭 m Ga As HBT process library, the results show that the gain (S21) of MGT-DBLNA can be adjusted within the range of 3.9U 12.3 dB 12.6db 20.2 dB at different operating frequencies of 2.45.2 GHz. The input echo loss (S11) and output echo loss (S22) are less than -10.0 dB, the noise coefficient (noisefigure,NF) is less than 3.4dB. Under the operating voltage of 5.0 V, the static power consumption is less than 20.0 MW. The proposed MGT-DBLNA not only achieves a wide range of gain adjustment, but also reduces power consumption.
【作者单位】：北京工业大学电子信息与控制工程学院;
【基金】：国家自然科学基金资助项目(61574010) 北京市自然科学基金资助项目(4142007) 北京市未来芯片技术高精尖创新中心科研基金资助项目(KYJJ2016008)
【分类号】：TN722.3

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