A 310-340-GHz Coupled-Line Voltage-Controlled Oscillator Based on 0.25-μm InP HBT Technology

Daekeun Yoon, Jongwon Yun, Jae-Sung Rieh

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A THz voltage-controlled oscillator (VCO) has been developed in this work based on a 0.25-μm InP heterojunction bipolar transistor (HBT) technology. The cross-coupled push-push oscillator adopted a novel coupled-line topology, in which the DC blocking capacitors and the load inductance are replaced by a pair of coupled-lines to improve the oscillation frequency and reduce the circuit area. Also, a base bias tuning was employed for effective oscillation frequency tuning. The circuit exhibited the voltage tuning from 309.5 GHz to 339.5 GHz, leading to a tuning range of 30 GHz. The maximum output power was-6.5 dBm at 334 GHz, achieved with a dc power consumption of 13.5 mW. Measured phase noise was-86.55 at 10-MHz offset. The circuit occupies only 0.014 mm2 excluding the probing pads.

Original languageEnglish
Article number7137691
Pages (from-to)652-654
Number of pages3
JournalIEEE Transactions on Terahertz Science and Technology
Volume5
Issue number4
DOIs
Publication statusPublished - 2015 Jul 1

Fingerprint

voltage controlled oscillators
Variable frequency oscillators
Heterojunction bipolar transistors
bipolar transistors
heterojunctions
Tuning
tuning
Networks (circuits)
oscillations
Phase noise
inductance
Inductance
capacitors
Electric power utilization
Capacitors
topology
direct current
oscillators
Topology
output

Keywords

  • Frequency control
  • heterjunction bipolar transistor (HBT)
  • Voltage-controlled oscillators (VCOs)

ASJC Scopus subject areas

  • Radiation
  • Electrical and Electronic Engineering

Cite this

A 310-340-GHz Coupled-Line Voltage-Controlled Oscillator Based on 0.25-μm InP HBT Technology. / Yoon, Daekeun; Yun, Jongwon; Rieh, Jae-Sung.

In: IEEE Transactions on Terahertz Science and Technology, Vol. 5, No. 4, 7137691, 01.07.2015, p. 652-654.

Research output: Contribution to journalArticle

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