نویسندگان | R Eskandari, A Ebrahimi, HF Baghtash |
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نشریه | Tabriz journal of electrical engineering |
ارائه به نام دانشگاه | صنعتی سهند |
شماره صفحات | 11-17 |
شماره سریال | 1 |
شماره مجلد | 51 |
نوع مقاله | Full Paper |
تاریخ انتشار | 2021-04-31 |
رتبه نشریه | علمی - پژوهشی |
نوع نشریه | چاپی |
کشور محل چاپ | ایران |
چکیده مقاله
An area-efficient wideband receiver front-end for multi-standard receivers is presented. To handle large input signal levels, dual gain modes are employed in the LNA stage. For input signals lower than -17.5 dBm, a noise-canceling balun CGCS LNA is employed. The LNA features a local feedback loop to reduce power consumption. For input signals in the range of from -17.5 to -5.2 dBm, the CG-CS LNA is bypassed with a balun unit-gain inverter stage. The proposed front-end shows better than -12 dB input matching for both gain modes in the frequency range of 0.4-3.4 GHz. Due to the lack of off-chip balun, the proposed front-end consumes low area. Moreover, the full differential structure leads to enhanced linearity performance. The post-layout simulation results in RF CMOS 0.18 µm process shows the conversion gain of 24.5/13.06 dB in HG/LG modes. The minimum DSB NF is 3.77/9.84 dB, and the third input intercept point (IIP3) is -7.29/-1.8 dBm. The circuit dissipates 12.93 mW with an active area of 0.073 mm2 .