An integrated Ka-band VCO and divide-by-4 frequency divider with 30.2% tuning range in 90-nm CMOS

Hamed Alsuraisry, Jen Hao Cheng, Wei Tsung Li, Jeng Han Tsai, Tian Wei Huang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This article presents a wideband phase-locked loop (PLL) front-end, which consists of a dual-core voltage-controlled oscillator (VCO) and a divide-by-four (D4) frequency divider in 90-nm CMOS technology. The switched inductors and varactor banks are used to enhance the tuning range of VCO. The D4 frequency divider is a body-biased injection-locked frequency divider (ILFD) cascoded with source-injection current mode logic (SICML) for wider locking range and lower power consumption. This PLL front-end demonstrates a 30.2% frequency tuning range (FTR) from 23.6 to 32 GHz and a phase noise of −101.22 dBc/Hz at 5.86 GHz with 1 MHz offset frequency. The output power is higher than −15 dBm among the operating bandwidth. The dc power consumption is 40.8 mW at 1.2 V and 1.5 V supply voltages.

Original languageEnglish
Pages (from-to)1306-1309
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume59
Issue number6
DOIs
Publication statusPublished - 2017 Jun 1

Fingerprint

frequency dividers
voltage controlled oscillators
Variable frequency oscillators
Phase locked loops
CMOS
Electric power utilization
Tuning
tuning
Varactors
Phase noise
injection
varactor diodes
inductors
Bandwidth
locking
logic
Electric potential
broadband
bandwidth
output

Keywords

  • CMOS
  • VCO
  • forward-body-bias
  • frequency divider
  • phased-locked loop (PLL)
  • switched inductor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

An integrated Ka-band VCO and divide-by-4 frequency divider with 30.2% tuning range in 90-nm CMOS. / Alsuraisry, Hamed; Cheng, Jen Hao; Li, Wei Tsung; Tsai, Jeng Han; Huang, Tian Wei.

In: Microwave and Optical Technology Letters, Vol. 59, No. 6, 01.06.2017, p. 1306-1309.

Research output: Contribution to journalArticle

Alsuraisry, Hamed ; Cheng, Jen Hao ; Li, Wei Tsung ; Tsai, Jeng Han ; Huang, Tian Wei. / An integrated Ka-band VCO and divide-by-4 frequency divider with 30.2% tuning range in 90-nm CMOS. In: Microwave and Optical Technology Letters. 2017 ; Vol. 59, No. 6. pp. 1306-1309.
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