摘要
With a lot of millimeter-wave(mm-Wave)applications being issued,wideband circuits and systems have attracted much attention because of their strong applicability and versatility.In this paper,four transformer-based ultra-wideband mm-Wave circuits demonstrated in CMOS technologies are reviewed from theoretical analysis,implementation,to performance.First,we introduce a mm-Wave low-noise amplifier with transformer-based Gm-boosting and pole-tuning techniques.It achieves wide operating bandwidth,low noise figure,and good gain performance.Second,we review an injection-current-boosting technique which can significantly increase the locking range of mm-Wave injection-locked frequency triplers.Based on the injectionlocked principle,we also discuss an ultra-wideband mm-Wave divider with the transformer-based high-order resonator.Finally,an E-band up-conversion mixer is presented;using the two-path transconductance stage and transformer-based load,it obtains good linearity and a large operating band.
With a lot of millimeter-wave(mm-Wave) applications being issued, wideband circuits and systems have attracted much attention because of their strong applicability and versatility. In this paper, four transformer-based ultra-wideband mm-Wave circuits demonstrated in CMOS technologies are reviewed from theoretical analysis, implementation, to performance. First, we introduce a mm-Wave low-noise amplifier with transformer-based Gm-boosting and pole-tuning techniques. It achieves wide operating bandwidth, low noise figure, and good gain performance. Second, we review an injection-current-boosting technique which can significantly increase the locking range of mm-Wave injection-locked frequency triplers. Based on the injectionlocked principle, we also discuss an ultra-wideband mm-Wave divider with the transformer-based high-order resonator. Finally, an E-band up-conversion mixer is presented; using the two-path transconductance stage and transformer-based load, it obtains good linearity and a large operating band.
基金
supported by the National Natural Science Foundation of China(Nos.61804024,61874020,and 61771115)
the National Science and Technology Major Project of the Ministry of Science and Technology of China(No.2018ZX03001008)。
