Loading...

CMOS integrated delay chain for X-Ku band applications

Ghazizadeh, M. H ; Sharif University of Technology | 2020

411 Viewed
  1. Type of Document: Article
  2. DOI: 10.1007/s10470-019-01569-w
  3. Publisher: Springer , 2020
  4. Abstract:
  5. A wideband integrated delay chain chip with 5-bit delay control, maximum delay of 120 ps and 3.9 ps delay resolution, designed and fabricated in 0.18 μ m CMOS technology is presented. Second-order all pass networks (APN) are used as delay structures in this delay circuit. In the design of the two MSB bits of the fabricated chip, a new design approach is used which allows higher group delay to be achieved with fewer number of passive second-order APN circuits. This would in turn reduce insertion loss of the designed delay control chain. Measurement results of the fabricated delay chain show 12.6–20.5 dB insertion loss and less than 3.3 ps RMS delay error over the intended frequency band from 8 to 18 GHz. The fabricated chip occupies an area of 1.2 × 2.7 mm2 and has no DC power consumption. © 2019, Springer Science+Business Media, LLC, part of Springer Nature
  6. Keywords:
  7. All pass network (APN) ; CMOS ; Delay chain circuit ; CMOS integrated circuits ; Fabrication ; Group delay ; Insertion losses ; Integrated circuit design ; Allpass networks ; CMOS technology ; DC power consumption ; Delay chains ; Delay control ; Design approaches ; Fabricated chips ; Second orders ; Delay circuits
  8. Source: Analog Integrated Circuits and Signal Processing ; Volume 102, Issue 1 , 2020 , Pages 213-224
  9. URL: https://ieeexplore.ieee.org/document/8949745