Loading...

Elimination of Blocker Signals in Radio Receivers Using Time-Varying Circuits

Rajaei Rizi, Mohammad Mahdi | 2020

418 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 52986 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Fotowat Ahmadi, Ali
  7. Abstract:
  8. According to increasingly utilization of different frequency spots, RF receivers are allways under the threats of compression and desensitization because of large out-of-band or in-band blockers. The IC technologies afford fast, low-resistance switches as scaling keeps going on. With this mind, the Linear Periodic Time Varying circuits, in which the switches play the most dominant role, will be a sensible candidate for the concerns of blocker detection and rejection. Furthermore, nowadays’ receivers should be reconfigureable so as to be tunable at different frequency bands and satisfy contrastive standards. In this regard, the LPTV filters provide vast range of tunablity not only with respetc to frequency ranges but also as regards of filter shape. Thus, in this thesis, we devlope mathematical background for the sake of analysis, propose a design methodology, and show that thanks to the numerous degrees of freedom, it is possible to design very sharp filters in comparison with N-path filters. Then, we design and simulated a programmable LPTV-based receiver in 65nm CMOS able to find the frequency of the blocker and, eventually, heavily reject it
  9. Keywords:
  10. N-Path Filter ; Complementary Metal Oxide Semiconductor Technology (CMOS) ; Programmable Receivers ; Linear Periodic Time Varying (LPTV)Circuits ; Reconfigurable Filters ; Blocker Detection ; Radio Frequency Blocker Rejection

 Digital Object List

 Bookmark

No TOC