A 3-6-GHz Highly Linear I-Channel Receiver With Over+3.0-dBm In-Band P-1dB and 200-MHz Baseband Bandwidth Suitable for 5G Wireless and Cognitive Radio Applications Academic Article uri icon


  • 2004-2012 IEEE. A highly linear I-channel receiver prototype is presented for a 3-6-GHz broadband radio system with a 200-MHz baseband bandwidth and verified to operate under congested spectrum environments. A direct conversion receiver developed from this prototype is suitable for a cognitive radio, a fifth-generation (5G) receiver, and other wireless systems with a total (in-band signal plus blocker) power of above -6.0 dBm. The broadband receiver consists of a low-noise transconductance amplifier (LNTA), a passive mixer, a wideband transimpedance amplifier, and a power-efficient minimally invasive baseband filter. The LNTA with high linearity employs a cross-coupled structure and resistive degeneration to achieve low noise and high linearity simultaneously. The common-gate-based LNTA achieves 2.3-dB noise figure in simulation. Fabricated in a mainstream 40-nm CMOS technology, the worst case measured system noise figure is under 5.8 dB at 3-MHz baseband frequency, and the conversion gain is larger than 12.8 dB with passband variations under 2 dB from 1- up to 200-MHz signal bandwidth. Over 3-6 GHz, the receiver's in-band input third-order intercept point (IIP3) and input P1db are higher than 15.1 and 3.0 dBm, respectively, whereas the power consumption varies from 64.1 to 69.6 mW.

published proceedings


author list (cited authors)

  • Jiang, J., Kim, J., Karsilayan, A. I., & Silva-Martinez, J.

citation count

  • 12

complete list of authors

  • Jiang, Junning||Kim, Jusung||Karsilayan, Aydin Ilker||Silva-Martinez, Jose

publication date

  • August 2019