تقویت‌کننده کم ‏نویز فرا پهن‏ باند GHz 1.6-3.10 با شبکه تطبیق ورودی جدید

نوع مقاله : علمی-پژوهشی

نویسندگان

گروه الکترونیک - دانشکده مهندسی برق و کامپیوتر - دانشگاه بیرجند

چکیده

در این مقاله، یک تقویت‌کننده کم‏نویز (LNA) دوطبقه سورس‏‏مشترک با شبکه تطبیق ورودی جدید برای کاربردهای فرا پهن­باند (UWB) ارائه ‌شده است. شبکه تطبیق پیشنهاد‏شده با استفاده از فیدبک منفی فعال و یک شبکه سلفی، دستیابی همزمان به تطبیق امپدانس ورودی پهن‏باند، عدد نویز پایین و بهره یکنواخت بالا را فراهم کرده است. تقویت‏کننده کم‏نویز پیشنهادشده بر پایه فنّاوری µm 18/0 CMOS RF-TSMC طراحی و با استفاده از نرم‏افزار ADS شبیه‌سازی ‌شده است. این تقویت‏کننده در پهنای باند GHz 3.10-1.6، دارای بهره توان مستقیم (S21) dB 1±15، عدد نویز (NF) کمتر از dB 3.5 و تلفات بازگشتی ورودی (S11) کمتر از dB 10- است. توان مصرفی آن نیز mW 10 از منبع تغذیه V 1 بوده و مساحت مصرفی تراشه در حدود mm2 0.85 است.

کلیدواژه‌ها

عنوان مقاله [English]

A 3.1-10.6 GHz Ultra-Wideband Low Noise Amplifier with Novel Input Matching Network

نویسندگان [English]

  • A. Bijari
  • M. Sheikhi
Faculty of Electrical and Computer Engineering, University of Birjand, Birjand, Iran
چکیده [English]

In this paper, a two-stage common source low noise amplifier (LNA) with novel input matching network is presented for ultra-wideband (UWB) applications. The proposed input matching network employing the active feedback and an inductive network is proposed to achieve the wideband matching, low noise figure and high flatness gain simultaneously. The proposed LNA has been designed and simulated in the RF-TSMC CMOS 0.18 μm technology by Advanced Design System (ADS). The simulation results exhibit a flat power gain (S21) of 15±1 dB with a noise figure (NF) lower than 3.5 dB and an input impedance matching less than –10 dB over 3.1 to 10.6 GHz bandwidth. It consumes 10 mW from 1 V supply voltage and occupies 0.85 mm2.

کلیدواژه‌ها [English]

  • Low noise amplifier
  • Input matching
  • Common source configuration
  • Active feedback

مراجع

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