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Bijari, Abolfazl, Khoshbinahmadi, Fereshte, Mallaki, Mohammad-Amin. (1405). A 2.4-GHz Sub-mW Low-Noise Amplifier using Current-Reuse and Noise-Cancelling Techniques for Wireless Sensor Networks. فناوری آموزش, (), -. doi: 10.22061/jecei.2026.113105.933
Abolfazl Bijari; Fereshte Khoshbinahmadi; Mohammad-Amin Mallaki. "A 2.4-GHz Sub-mW Low-Noise Amplifier using Current-Reuse and Noise-Cancelling Techniques for Wireless Sensor Networks". فناوری آموزش, , , 1405, -. doi: 10.22061/jecei.2026.113105.933
Bijari, Abolfazl, Khoshbinahmadi, Fereshte, Mallaki, Mohammad-Amin. (1405). 'A 2.4-GHz Sub-mW Low-Noise Amplifier using Current-Reuse and Noise-Cancelling Techniques for Wireless Sensor Networks', فناوری آموزش, (), pp. -. doi: 10.22061/jecei.2026.113105.933
Bijari, Abolfazl, Khoshbinahmadi, Fereshte, Mallaki, Mohammad-Amin. A 2.4-GHz Sub-mW Low-Noise Amplifier using Current-Reuse and Noise-Cancelling Techniques for Wireless Sensor Networks. فناوری آموزش, 1405; (): -. doi: 10.22061/jecei.2026.113105.933

A 2.4-GHz Sub-mW Low-Noise Amplifier using Current-Reuse and Noise-Cancelling Techniques for Wireless Sensor Networks

Journal of Electrical and Computer Engineering Innovations (JECEI)
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 24 شهریور 1405
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22061/jecei.2026.113105.933
نویسندگان
Abolfazl Bijari* 1؛ Fereshte Khoshbinahmadi2؛ Mohammad-Amin Mallaki2
1Deptartment of Electrical Engineering, Faculty of Electrical and Computer Engineering, University of Birjand, Birjand, Iran.
2Department of Electronics, Faculty of Electrical and Computer Engineering, University of Birjand, Birjand, Iran.
تاریخ دریافت: 02 خرداد 1405،  تاریخ بازنگری: 12 شهریور 1405،  تاریخ پذیرش: 16 شهریور 1405 
چکیده
Background and Objectives: Low-power wireless sensor network (WSN) receivers require LNAs with adequate gain, low noise figure, acceptable linearity, and reliable input matching under a strict power budget. This work aims to present a new sub-mW 2.4-GHz CMOS LNA architecture for WSN receiver front ends.
Methods: The proposed 180-nm CMOS LNA employs a single-stage CG/CS architecture that combines current-reuse, noise-cancelling, and gm-boosting techniques. The gm-boosted CG path provides low-power input matching, while the CS path suppresses noise and enhances gain. This complementary PMOS-NMOS current-reuse structure improves transconductance efficiency and achieves an optimized power-performance tradeoff without multi-stage overhead.
Results: Post-layout simulation results at 2.4 GHz show that the proposed LNA achieves a power gain (S21) of 11.9 dB, a noise figure of 3.7 dB, and an input third-order intercept point of -4 dBm. The circuit consumes only 0.99 mW at a supply voltage of 1.8 V, with an occupied active area of 0.394 mm2. The input return loss is better than -11 dB, confirming acceptable impedance matching at the operating frequency.
Conclusion: The proposed LNA demonstrates that the presented current-reuse noise-cancelling architecture can achieve sub-mW operation while maintaining suitable RF performance for 2.4-GHz WSN applications. By embedding noise cancellation and transconductance enhancement into a compact common-gate/common-source topology, the circuit provides an effective solution for low-power CMOS receiver front ends and demonstrates an effective tradeoff among gain, noise performance, input matching, linearity, and power dissipation.
کلیدواژه‌ها
Low-noise amplifier (LNA)؛ Current-reuse؛ Noise cancellation؛ Gm-boosting؛ Wireless sensor networks (WSNs)
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