A 15-21 GHz I/Q Upconverter With an On-Chip Linearization Circuit for 10 Gbps mm-Wave Links
| Description | |
| Date | |
| Authors | Del Rio D., Gurutzeaga I., Rezola A., Sevillano J.F., Velez I., Puyal V., Gonzalez-Jimenez J.L., Berenguer R. |
| Year | 2017-0220 |
| Source-Title | IEEE Microwave and Wireless Components Letters |
| Affiliations | Ceit, San Sebastian, Spain, Tecnun (University of Navarra), San Sebastian, Spain, CEA, LETI, MINATEC Campus, Grenoble, France, University of Grenoble Alpes, Grenoble, France |
| Abstract | This letter presents a 15-21 GHz I/Q upconverter, based on two Gilbert-cell mixers with an on-chip wideband linearization loop that extends the linear region and allows power efficient operation at backoff power levels. A quadrature LO signal is generated using an integrated two-stage polyphase filter. Measurements show a conversion gain of -5.5 dB, an output 1-dB compression point of 0 dBm, and an image suppression of 40 dB over the 6-GHz output bandwidth. An error vector magnitude of 3.5% is obtained for a 10-Gb/s 64-QAM signal with a bandwidth of 2 GHz. The circuit is integrated in a 55-nm BiCMOS process and occupies 1.07 mm2. The dc power consumption is 61 mW. © 2017 IEEE. |
| Author-Keywords | 64-QAM, I/Q modulator, K-band, Mixer, RF integrated circuits |
| Index-Keywords | Bandwidth, Bandwidth compression, Linearization, Millimeter waves, Timing circuits, 1dB compression point, DC power consumption, Error vector magnitude, Gilbert Cell mixers, Image suppression, Linearization circuit, Poly phase filters, Wideband linearization, Microwave circuits |
| ISSN | 15311309 |
| Link | Link |