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Communication Dans Un Congrès Année : 2013

A digitally modulated mm-Wave cartesian beamforming transmitter with quadrature spatial combining

Résumé

With fast-growing demand for high-speed mobile communications and highly saturated spectral usage below 10GHz, mm-Wave frequency bands are emerging as the key playground for future high-data-rate wireless standards. Recent years have witnessed vast technology development on V-band (60GHz) Wireless Personal Area Networks (WPAN) and E-band (80GHz) point-to-point cellular backhauls. However, existing integrated CMOS mm-Wave solutions have relatively poor energy efficiency, especially for the transmitter (TX). This is mainly due to the use of traditional Class-A Power Amplifiers (PAs) that provide good linearity but suffer from low efficiency. In addition, the efficiency of Class-A PAs drop dramatically at power back-offs, making these transmitters even less efficient when conveying non-constant envelope signals. State-of-the-art mm-Wave Class-A PAs show less than 5% efficiency at 6dB back-off [1,2].
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Dates et versions

hal-00918898 , version 1 (16-12-2013)

Identifiants

Citer

Jie Chen, Lu Ye, D. Titz, F. Gianesello, R. Pilard, et al.. A digitally modulated mm-Wave cartesian beamforming transmitter with quadrature spatial combining. IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC), Feb 2013, San Francisco, United States. pp.232-233, ⟨10.1109/ISSCC.2013.6487713⟩. ⟨hal-00918898⟩
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