A Ku-Band RF Front-End Employing Broadband Impedance Matching with 3.5 dB NF and 21 dB Conversion Gain in 45-nm CMOS Technology
| Autor: | Jusung Kim, Dzuhri Radityo Utomo, Hafiz Usman Mahmood, Seok-Kyun Han, Sang-Gug Lee |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Computer Networks and Communications
stagger tuning lcsh:TK7800-8360 wideband lna 02 engineering and technology Ku band complementary 0202 electrical engineering electronic engineering information engineering Electronic engineering Hardware_INTEGRATEDCIRCUITS resistive feedback inverter Electrical and Electronic Engineering Wideband Physics RF front end Amplifier 020208 electrical & electronic engineering Bandwidth (signal processing) lcsh:Electronics 020206 networking & telecommunications Common source Input impedance wideband matching CMOS Hardware and Architecture Control and Systems Engineering Signal Processing push–pull |
| Zdroj: | Electronics, Vol 9, Iss 3, p 539 (2020) Electronics Volume 9 Issue 3 |
| ISSN: | 2079-9292 |
| Popis: | This paper presents a K u -band RF receiver front-end with broadband impedance matching and amplification. The major building blocks of the proposed receiver front-end include a wideband low-noise amplifier (LNA) employing a cascade of resistive feedback inverter (RFI) and transformer-loaded common source amplifier, a down-conversion mixer with push&ndash pull transconductor and complementary LO switching stage, and an output buffer. Push&ndash pull architecture is employed extensively to maximize the power efficiency, bandwidth, and linearity. The proposed two-stage LNA employs the stagger-tuned frequency response in order to extend the RF bandwidth coverage. The input impedance of RFI is carefully analyzed, and a wideband input matching circuit incorporating only a single inductor is presented along with useful equivalent impedance matching models and detailed design analysis. The prototype chip was fabricated in 45-nm CMOS technology and dissipates 78 mW from a 1.2-V supply while occupying chip area of 0.29 mm 2 . The proposed receiver front-end provides 21 dB conversion gain with 7 GHz IF bandwidth, 3.5 dB NF, &minus 15.7 dBm IIP 3 while satisfying < &minus 10 dB input matching over the whole input band. |
| Databáze: | OpenAIRE |
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