An octave-range watt-level fully integrated CMOS switching power mixer array for linearization and back-off efficiency improvement

Kousai, Shouhei; Hajimiri, Ali

doi:10.1109/isscc.2009.4977465

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A low power/noise emission LTE fully class A/B transmitter with a programmable output balun

Girard

Codega²,

Castello

2014

2014 21st IEEE International Conference on Electronics, Circuits and Systems (ICECS)

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A current-mode transmitter for multi-standard wireless communications (including LTE) is presented. To limit both current consumption and RX-band noise a complete class A/B approach (from the DAC to the up-converter) is followed. The circuit is made up of three portions: a baseband that includes class B DAC and a second order low-pass filter (an active first order and a passive first order) combined with a class A/B up-converter. For LTE10 the current consumption (from a 1.8V regulated supply) is 47.5mW at 0dBm and 27.37mW at -6dBm output power respectively. The complete transmitter gives -160.5dBc/Hz RX-band noise injection at 30MHz offset (band 5 for LTE 10). I.978-1-4799-4242-8/14/$31.00 c 2014 IEEE

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A low power/noise emission LTE fully class A/B transmitter with a programmable output balun

Girard

Codega²,

Castello

2014

2014 21st IEEE International Conference on Electronics, Circuits and Systems (ICECS)

View full text Add to dashboard Cite

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Power Amplifiers and Transmitters for Next Generation Mobile Handsets

Choi¹,

Kang²,

Kim³

et al. 2009

JSTS:Journal of Semiconductor Technology and Science

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As a wireless handset deals with multiple application standards concurrently, RF transmitters and power amplifiers are required to be more power efficient and reconfigurable. In this paper, we review the recent advances in the design of the power amplifiers and transmitters. Then, the systematic design approaches to improve the performance with the digital baseband signal processing are introduced for the next generation mobile handset.

show abstract

An octave-range watt-level fully integrated CMOS switching power mixer array for linearization and back-off efficiency improvement

Cited by 2 publications

References 16 publications

A low power/noise emission LTE fully class A/B transmitter with a programmable output balun

A low power/noise emission LTE fully class A/B transmitter with a programmable output balun

Power Amplifiers and Transmitters for Next Generation Mobile Handsets

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