A 4.94 ~ 5.35 GHz, 3.93 mW, 4-bit Digitally Controlled Bandpass Filter for High Speed WLAN Applications

Autor: Nahid Hossain Antu, Maliha Elma, Md. Tawfiq Amin, Omar Faruqe
Rok vydání: 2020
Předmět:
Zdroj: 2020 23rd International Conference on Computer and Information Technology (ICCIT).
DOI: 10.1109/iccit51783.2020.9392679
Popis: This paper comprises a 4.94 to 5. 35 GHz digitally tuned bandpass filter based on 4-bit scheme which outputs 16 different frequencies for the corresponding bit combinations. Active inductor is employed considering several effective utilization such as area consumption and inductive tunability. Array of MOS capacitor is employed to tune inductance, finally, the center frequency. Simulated in $90 nm$ CMOS, the forward gain (S21) changes from $8.86 \sim 17.76 dB$ within the tuning range while in case of return loss $(S11)$ it is $-21.43 \sim-12.23 dB$. The DC power consumption is always kept at $3.93 mW$ and the noise Figure alters from $18.86 dB \sim 19.48$ dB. Process corner analysis, temperature sweep analysis, and Monte Carlo simulation is performed to illustrate the viability of proposed design. The compact layout shows that the BPF occupies an area of $826 \mu m^{2}$. Finally, a fair comparison has been performed with respect to other published works based on the fundamental performance parameters. The frequency range includes 5 GHz frequency spectrum which is highly preferable for today’s wireless LAN applications.
Databáze: OpenAIRE