CMOS RF first-order all-pass filter
Document typeConference report
PublisherInternational Centre for Numerical Methods in Engineering (CIMNE)
Rights accessOpen Access
In this paper, a wide-band first-order voltage-mode all-pass filter is presented. Due to a simple structure and appropriate performance of the proposed all-pass filter, this filter achieves a flat group delay of over 60 ps with a pole/zero pair located at 4.5 GHz. The proposed circuit demonstrates a high linearity and consumes merely 16 mW power from a 1.8-V supply. Simulation results indicate an input-referred 1-dB compression point P1dB of 4.1 dBm and the wide-band operation capability of the first order all-pass filter. Furthermore, the proposed all-pass filter is capable of converting into a second-order all-pass filter adding only a grounded capacitor. To demonstrate the performance of the proposed all-pass filter, simulation results are conducted by using Virtuoso Cadence in a TSMC 180-nm CMOS process.
CitationAghazadeh, S. [et al.]. CMOS RF first-order all-pass filter. A: Seminario Anual de Automática, Electrónica Industrial e Instrumentación. "SAAEI 2018: 25 Seminario Anual de Automática, Electrónica Industrial e Instrumentación 2018: Barcelona, España: 4-6 Julio, 2018: proceedings book". Barcelona: International Centre for Numerical Methods in Engineering (CIMNE), 2018, p. 133-137.