Kim Min-Su
Department of Information and Electronic Engineering, Mokpo National University, Muan 58554, Republic of Korea.
Sensors (Basel). 2024 Oct 14;24(20):6606. doi: 10.3390/s24206606.
This paper presents a single-input multiple-output (SIMO) cascode low-noise amplifier with inductive degeneration for inter- and intra-band carrier aggregation. The proposed low-noise amplifier has two output ports for flexible operation in carrier aggregation combinations for band 30 and band 7. However, during inter- and intra-band operation, gain variation occurs depending on the output mode. To compensate for this, a switching circuit is proposed to adjust the degeneration inductor, optimizing gain performance for both modes. The switching operation can minimize the control for the dynamic range in the receiver system to support carrier aggregation. The designed low-noise amplifier was fabricated using a 65 nm CMOS process, occupying an area of 2.1 mm. In inter-band operation, the small-signal gain was measured by 18.9 dB for band 30 and 18.6 dB for band 7, with the noise figures of 1.03 dB and 1.07 dB, respectively. For intra-band operation, the small-signal gain was 17.3 dB and 17.2 dB, with the noise figures of 1.3 dB and 1.41 dB. The IIP values were measured by -7.6 dBm and -6.7 dBm for inter-band, and -6.3 dBm and -6.2 dBm for intra-band. Power consumption was 8.04 mW and 7.68 mW in inter-band, and 17.04 mW and 17.64 mW in intra-band depending on the output configuration.
本文提出了一种用于带间和带内载波聚合的具有电感退化的单输入多输出（SIMO）共源共栅低噪声放大器。所提出的低噪声放大器具有两个输出端口，以便在频段30和频段7的载波聚合组合中灵活操作。然而，在带间和带内操作期间，增益会根据输出模式而发生变化。为了对此进行补偿，提出了一种开关电路来调整退化电感，从而针对两种模式优化增益性能。该开关操作可以最小化接收机系统中对动态范围的控制，以支持载波聚合。所设计的低噪声放大器采用65纳米CMOS工艺制造，占用面积为2.1平方毫米。在带间操作中，频段30的小信号增益测量值为18.9分贝，频段7的为18.6分贝，噪声系数分别为1.03分贝和1.07分贝。对于带内操作，小信号增益为17.3分贝和17.2分贝，噪声系数为1.3分贝和1.41分贝。带间的IIP值测量为-7.6分贝毫瓦和-6.7分贝毫瓦，带内为-6.3分贝毫瓦和-6.2分贝毫瓦。根据输出配置，带间功耗为8.04毫瓦和7.68毫瓦，带内为17.04毫瓦和17.64毫瓦。
