A Positive Feedback Passive Mixer-First Receiver Front-End
(2015) IEEE Radio Frequency Integrated Circuits, RFIC 2015 p.79-82- Abstract
- This paper presents a technique to reduce the noise figure of a passive mixer-first receiver front-end. By using lower than 50Ω switch resistance in the current-mode passive mixer and introducing a positive feedback from baseband to the RF-input, it can be well matched close to fLO while achieving a noise figure below 3dB, which is otherwise a fundamental limit. A quadrature front-end prototype for a direct conversion receiver has been implemented in 65nm CMOS, occupying an active area of 0.23mm2 with a frequency operation ranging from 0.7 to 3.8GHz. The prototype achieves a minimum noise figure of 2.5dB, an out-of-band 1dB compression point of +3dBm, with IIP3 and IIP2 exceeding +26 and +65dBm, respectively. The current consumption from a... (More)
- This paper presents a technique to reduce the noise figure of a passive mixer-first receiver front-end. By using lower than 50Ω switch resistance in the current-mode passive mixer and introducing a positive feedback from baseband to the RF-input, it can be well matched close to fLO while achieving a noise figure below 3dB, which is otherwise a fundamental limit. A quadrature front-end prototype for a direct conversion receiver has been implemented in 65nm CMOS, occupying an active area of 0.23mm2 with a frequency operation ranging from 0.7 to 3.8GHz. The prototype achieves a minimum noise figure of 2.5dB, an out-of-band 1dB compression point of +3dBm, with IIP3 and IIP2 exceeding +26 and +65dBm, respectively. The current consumption from a 1.2V supply is between 22.8 and 62.8mA, depending on frequency operation. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5052456
- author
- Nejdel, Anders LU ; Abdulaziz, Mohammed LU ; Törmänen, Markus LU and Sjöland, Henrik LU
- organization
- publishing date
- 2015
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- 2015 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)
- pages
- 79 - 82
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- IEEE Radio Frequency Integrated Circuits, RFIC 2015
- conference location
- Phoenix, Arizona, United States
- conference dates
- 2015-05-17 - 2015-05-19
- external identifiers
-
- scopus:84975704313
- DOI
- 10.1109/RFIC.2015.7337709
- project
- EIT_DARE Digitally-Assisted Radio Evolution
- language
- English
- LU publication?
- yes
- id
- 05d45412-ff66-4c02-b54c-38eb7260ee8b (old id 5052456)
- date added to LUP
- 2016-04-04 13:16:09
- date last changed
- 2024-01-13 06:30:48
@inproceedings{05d45412-ff66-4c02-b54c-38eb7260ee8b, abstract = {{This paper presents a technique to reduce the noise figure of a passive mixer-first receiver front-end. By using lower than 50Ω switch resistance in the current-mode passive mixer and introducing a positive feedback from baseband to the RF-input, it can be well matched close to fLO while achieving a noise figure below 3dB, which is otherwise a fundamental limit. A quadrature front-end prototype for a direct conversion receiver has been implemented in 65nm CMOS, occupying an active area of 0.23mm2 with a frequency operation ranging from 0.7 to 3.8GHz. The prototype achieves a minimum noise figure of 2.5dB, an out-of-band 1dB compression point of +3dBm, with IIP3 and IIP2 exceeding +26 and +65dBm, respectively. The current consumption from a 1.2V supply is between 22.8 and 62.8mA, depending on frequency operation.}}, author = {{Nejdel, Anders and Abdulaziz, Mohammed and Törmänen, Markus and Sjöland, Henrik}}, booktitle = {{2015 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)}}, language = {{eng}}, pages = {{79--82}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{A Positive Feedback Passive Mixer-First Receiver Front-End}}, url = {{http://dx.doi.org/10.1109/RFIC.2015.7337709}}, doi = {{10.1109/RFIC.2015.7337709}}, year = {{2015}}, }