A multi-turn twisted inductor for on-chip cross-talk reduction

Martin, Peter; Horn, Richard; Atar, Kobi Ben

doi:10.1109/icsee.2016.7806138

Cited by 4 publications

(1 citation statement)

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“…A circuit [25] composed of a power amplifier and a frequency divider with a multi-turn twisted inductor shows magnetic coupling reduction experimentally. The proposed sixtupler under interference from other RF components will show a similar reduction of coupling because injectionlocked frequency divider and frequency multiplier belong to the same class of injection-locked oscillators.…”

Section: Discussionmentioning

confidence: 99%

Injection-Locked Frequency Sixtuplers in 90 nm CMOS by Using the Push-Push Doubler

Cheng,

Shen,

Hong

et al. 2023

IEEE Access

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This paper designs two single-stage LC-tank injection-locked frequency sixtuplers (ILFSs) fabricated in a 90 nm CMOS process and it describes the circuit design, operation principle, and measurement results of the ILFSs. The ILFS circuit with a differential input and single-phase output is made of a firstharmonic injection-locked oscillator (ILO), a frequency tripler, and a push-push doubler. The first ILFS uses an octagonal inductor. For a supply voltage of 0.4 V, the free-running frequency is around 41.52 GHz, DC power consumption is 9.03 mW at the incident power of 0 dBm, and the output locking range at 0 dBm input power is 10.21 %. The second ILFS uses an 8-shaped inductor for low electromagnetic (EM) noise generation. The free-running frequency is around 37.2 GHz, DC power consumption is 7.72 mW at the incident power of 0 dBm, and the output locking range at 0 dBm input power is 17.4 %. The two chips have the same area, 0.7 x 0.7 mm 2 . This paper also provides a further analysis and comparison of the RF performance of on-chip inductors designed. Simulation shows the substrate noise coupling and distance noise coupling between victim and aggressor, the 8-shaped inductor exhibits a significant reduction in coupling. By the measurement results, it is evident that the performance of the 8-shaped inductor ILFS is superior to that of the octagonal inductor ILFS.INDEX TERMS 5G, millimeter-wave (mm-wave), low power, LC-tank, gm-boosted, push-push frequency doubler, frequency tripler, 8-shaped inductor, injection-locked frequency sixtupler, locking range, 90nm CMOS, magnetic field coupling noise interference.

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Section: Discussionmentioning

confidence: 99%