Graphical abstract AbstractThis paper presents a 0.3 mW 2.4 GHz low-power low-noise amplifier (LNA) using a forward-body bias technique for a wireless sensor network. The proposed LNA is implemented using CMOS 0.13-µm Silterra technology. The forward-body bias technique with a cascode configuration has been adopted in order to obtain low power consumption. A low supply voltage of 0.5 V is used to optimize the trade-offs between the LNA performances. The post-layout simulation results indicate that a power consumption of 0.3 mW is achieved. The simulated input return loss (S11) is less than -17.71 dB while the output return loss (S22) is below -14.83 dB. Moreover, the gain (S21) of 9.86 dB, the noise figure (NF) of 5.11 dB and the input-referred thirdorder intercept point (IIP3) of -7.5 dBm at 2.4 GHz is obtained with the calculated figure of merit (FOM) of 4.64 (1/mW).
AbstrakKertas kerja ini membentangkan penguat rendah hingar (LNA) berkuasa rendah 0.3 mW dengan frekuensi 2.4 GHz menggunakan teknik jasad pincang ke depan untuk rangkaian penderia tanpa dawai. LNA yang dicadangkan telah dilaksanakan dengan menggunakan teknologi Silterra 0.13-μm CMOS. Teknik jasad pincang ke depan dengan tatarajah kaskod telah diterima pakai bagi mendapatkan penggunaan kuasa yang rendah. Satu voltan bekalan rendah 0.5 V digunakan untuk mengoptimumkan keseimbangan antara prestasi-prestasi LNA. Keputusan simulasi pasca bentangan menunjukkan bahawa penggunaan kuasa 0.3 mW dicapai. Simulasi kehilangan masukan balik (S11) adalah kurang daripada -17.71 dB manakala kehilangan keluaran balik (S22) adalah di bawah -14.83 dB. Tambahan pula, gandaan (S21) adalah 9.86 dB, angka hingar (NF) adalah 5.11 dB dan tertib titik pintasan ketiga (IIP3) adalah -7.5 dBm pada 2.4 GHz diperolehi dengan merit angka yang dikira (FOM ) ialah 4.64 (1/mW).Kata kunci: Penguat rendah hingar, jasad pincang ke depan, penggunaan kuasa, keseimbangan, gandaan, angka hingar, angka merit
<span>This paper presents a concurrent dual-band CMOS low noise amplifier (LNA) at operating frequency of 2.4 GHz and 5.2 GHz for WLAN applications. The proposed LNA employed cascode common source to obtain high gain using 0.13-µm CMOS technology. The concurrent dual-band frequencies are matched using LC network band-pass and band-stop notch filter at the input and output stages. The filters help to shape the frequency response of the proposed LNA. The simulation results indicate that the LNA achieves a forward gain of 21.8 dB and 14.22 dB, input return loss of -18 dB and -14 dB at 2.4 GHz and 5.2 GHz, respectively. The noise figure of 4.1 dB and 3.5 dB with the input third-order intercept points 7 dBm and 10 dBm are obtained at 2.4 GHz and 5.2 GHz, respectively. The LNA dissipates 2.4 mW power at 1.2 V supply voltage with a chip size of 1.69 mm2.</span>
Abstract. This paper reviews ultra-low power CMOS RF mixer for wireless sensor networks (WSN) application. The study elaborates several types of mixer, mixer's performance parameters, the mixer's topologies and also the design technique to improve the mixer performance. The previously published works are compared and the best topology for low power mixer is discussed.
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