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An Injection-Current-Boosting Locking-Range Enhancement Technique for Ultra-Wideband mm-Wave Injection-Locked Frequency Triplers

Authors :
Jingzhi Zhang
Yunqiu Wu
Huihua Liu
Chenxi Zhao
Kai Kang
Source :
IEEE Transactions on Microwave Theory and Techniques. 67:3174-3186
Publication Year :
2019
Publisher :
Institute of Electrical and Electronics Engineers (IEEE), 2019.

Abstract

An injection-current-boosting (ICB) locking-range enhancement technique is presented to increase the locking range (LR) of the millimeter-wave (mm-wave) injection-locked frequency triplers (ILFTs). With a transformer-based fourth-order injection-coupling network, the parallel capacitance from the injection devices is resonated out over a wide frequency range and the injection current is boosted greatly. Analytical models of the ICB–ILFT are introduced, based on which the current-boosting phenomenon is analyzed. Meanwhile, the design concepts of the ultra-wideband mm-wave ILFT are presented. With the proposed ICB technique, an ICB-ILFT is designed and fabricated in 65-nm CMOS process. With a 0-dBm RF injection source, the ICB-ILFT can be locked from 22.8 to 43.2 GHz without calibration, achieving a 61.8% LR. The power consumption is only 5.0 mW and a 9.5-dB phase noise difference is observed, which is close to the theoretical value.

Details

ISSN :
15579670 and 00189480
Volume :
67
Database :
OpenAIRE
Journal :
IEEE Transactions on Microwave Theory and Techniques
Accession number :
edsair.doi...........6bbc4667a4e822e50b2c6a87605bdd49
Full Text :
https://doi.org/10.1109/tmtt.2019.2907254