Envelope detector sensitivity and blocking characteristics
2011 (English)In: European Conference on Circuit Theory and Design (ECCTD), Linköping, Sweden: IEEE conference proceedings, 2011, 802-805 p.Conference paper (Refereed)
This paper presents analytical expressions for the sensitivity of a low power envelope detector driven by a weak RF signal in the presence of a blocking signal. The envelope detector has been proposed for low power Wake-Up radios in applications such as RFID and wireless sensor systems. The theoretical results are verified with simulations of a modern short channel MOS transistor in a commonly used circuit topology. A discussion around a tutorial example of a radio frontend, consisting of an LNA and a detector, is presented. It is shown that the sensitivity of a low power envelope detector can reach -62 dBm with a low power LNA and in presence of a CW blocker.
Place, publisher, year, edition, pages
Linköping, Sweden: IEEE conference proceedings, 2011. 802-805 p.
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:liu:diva-73032DOI: 10.1109/ECCTD.2011.6043845ISBN: Print: 978-1-4577-0617-2ISBN: E: 978-1-4577-0616-5OAI: oai:DiVA.org:liu-73032DiVA: diva2:465000
20th European Conference on Circuit Theory and Design, Linköping, 29-31 Aug. 2011