A highly linear bidirectional phase shifter based on vector modulator for 60GHz applications
| Auteurs | Hameau F., Jany C., Martineau B., Larie A., Mercier E. |
| Year | 2017-0465 |
| Source-Title | IEEE MTT-S International Microwave Symposium Digest |
| Affiliations | CEA-LETI-Minatec, 17 rue des Martyrs, Grenoble Cedex 9, France, NXP, 45 allée des Ormes, Mougins, France |
| Abstract | This paper presents a phase shifter for beam steered systems at mmW frequencies. It is based on an I/Q hybrid transformer feeding a vector modulator that weights the amplitude of quadrature differential signals. A specific passive attenuator has been designed to improve the attenuation depth, the phase accuracy and the impedance matching. A CMOS 55nm circuit was measured, that covers the 360° phase shift with less than 1 dB gain and 5° phase imbalance. It covers the frequency band from 55 to 67 GHz and paves the way towards mobile millimeter-wave high data rate telecommunication systems. © 2017 IEEE. |
| Author-Keywords | 5G mobile communication, 60GHz, CMOS, Phase shifters, Vector modulator |
| Index-Keywords | CMOS integrated circuits, Frequency bands, Millimeter waves, Modulators, Phase shifters, 60GHz, Differential signal, High data rate, Mobile communications, Phase accuracy, Phase imbalances, Vector modulators, Mobile telecommunication systems |
| ISSN | 0149645X |
| Lien vers article | Link |