A wideband low power merged balance-balun-LNA and I/Q-mixer
Microelectronics Journal, cilt.107, 2021 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 107
- Basım Tarihi: 2021
- Doi Numarası: 10.1016/j.mejo.2020.104945
- Dergi Adı: Microelectronics Journal
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, INSPEC
- Anahtar Kelimeler: Active mixer, Blixer, Current reuse, Distortion canceling, Direct conversion, Front-end, Inductor-less, Low noise amplifier, Low power, Noise-cancellation, Wideband
- Atatürk Üniversitesi Adresli: Hayır
Özet
This paper presents a low power wideband RF receiver front-end in CMOS 180 nm technology that operates between 0.3 and 4.7 GHz. The mixer has a quadrature current commutating gilbert cell configuration that utilizes a novel broadband noise-canceling balanced balun-LNA as the transconductance stage. The noise-canceling balun LNA utilizes an additional noise-reduction technique that enhances its performance noticeably. Both of the common gate and common source stages of balun LNA are matched by employing equal-sized transistors that are biased with the same currents and load resistances. This technique results in superior symmetry, enhanced noise, and linearity performance under reduced power consumption. Post-layout simulation results show that the implemented balun LNA-I/Q-mixer has a conversion gain of 14.05 dB. The second and third-order intermodulation intercept points are +42.13 dBm and +4.13 dBm, respectively. The double-sideband NF is 4.74 dB. The proposed structure consumes only 6.7 mW from a 1.8 V supply and occupies a 0.056 mm2 chip area.