A 0.7-3GHz envelope ΔΣ modulator using phase modulated carrier clock for multi-mode/band switching amplifiers

A 1-bit RF modulator using phase-modulated-carrier-clocking envelope ΔΣ modulation for a multi-mode/band transmitter is presented. The prototype IC designed in 90 nm CMOS process covers 2.4 GHz ISM and 3GPP frequency bands up to 3 GHz in conformity with IEEE 802.11g, W-CDMA and LTE in 5MHz-mode. The...

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Bibliographic Details
Published in2011 IEEE Radio Frequency Integrated Circuits Symposium pp. 1 - 4
Main Authors Hori, S., Kunihiro, K., Takahashi, K., Fukaishi, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2011
Subjects
Clocks
CMOS
Delta-sigma modulation
Integrated circuits
land mobile radio equipment
Modulation
Multiaccess communication
Prototypes
radio transmitters
Spread spectrum communication
Switches
switching amplifier
wireless LAN
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Summary:A 1-bit RF modulator using phase-modulated-carrier-clocking envelope ΔΣ modulation for a multi-mode/band transmitter is presented. The prototype IC designed in 90 nm CMOS process covers 2.4 GHz ISM and 3GPP frequency bands up to 3 GHz in conformity with IEEE 802.11g, W-CDMA and LTE in 5MHz-mode. The IC dissipates 8 mW for 1.95 GHz WCDMA and occupies 0.044 mm 2 .
ISBN:1424482933
9781424482931
ISSN:1529-2517
2375-0995
DOI:10.1109/RFIC.2011.5940596