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A 65-nm digitally modulated polar transmitter incorporates a fully integrated, efficient 2.4-GHz switching Inverse Class-D power amplifier. Low-power digital filtering on the amplitude path helps remove spectral images for coexistence. The transmitter integrates the complete LO distribution network and digital drivers. Operating from a 1-V supply, the PA has 21.8-dBm peak output power with 44% efficiency. Simple static predistortion helps the transmitter meet EVM and mask requirements of 802.11g 54-Mb/s WLAN data with 18% average efficiency.
Published in:
Solid-State Circuits, IEEE Journal of
(Volume:46
,
Issue:
8
)
Date of Publication: Aug. 2011
- Page(s):
- 1796 - 1809
- ISSN :
- 0018-9200
- INSPEC Accession Number:
- 12121102
- Digital Object Identifier :
- 10.1109/JSSC.2011.2155790
- Product Type:
- Journals & Magazines
- Date of Publication :
- 20 June 2011
- Date of Current Version :
- 21 July 2011
- Issue Date :
- Aug. 2011
- Sponsored by :
- IEEE Solid-State Circuits Society
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