290-GHz 17-dB on-/off-Ratio Modulator With Resonance Control Varactors

Sungmook Lim, Hyunji Koo, Choul Young Kim, Jungsoo Kim, Jae-Sung Rieh, Songcheol Hong

Research output: Contribution to journalArticle

Abstract

A 17-dB on-/off-ratio modulator operating at 290 GHz that switches resonance frequencies of a transmission line resonator with two varactors is presented for ultrashort-distance communication. The resonance frequency is altered by the control voltage of the varactors. The high on/off ratio can be achieved due to a simple resonance control of a transmission line resonator. High-speed modulation is possible due to a small RC time constant associated with a control voltage node. It is fabricated by using a 65-nm CMOS process with a cutoff frequency of 220 GHz. We demonstrated an insertion loss of 3.49 dB, an on/off ratio of 17 dB, a bandwidth of 28 GHz, and data rates as high as 11.3 Gb/s.

Original languageEnglish
JournalIEEE Microwave and Wireless Components Letters
DOIs
Publication statusAccepted/In press - 2018 Jan 1

Fingerprint

varactor diodes
Varactors
Modulators
modulators
Voltage control
transmission lines
Resonators
Electric lines
resonators
Cutoff frequency
electric potential
Insertion losses
insertion loss
time constant
CMOS
cut-off
switches
communication
Switches
high speed

Keywords

  • Changing the resonance frequency
  • on-off-keying (OOK) modulator
  • short-range communication.

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

290-GHz 17-dB on-/off-Ratio Modulator With Resonance Control Varactors. / Lim, Sungmook; Koo, Hyunji; Kim, Choul Young; Kim, Jungsoo; Rieh, Jae-Sung; Hong, Songcheol.

In: IEEE Microwave and Wireless Components Letters, 01.01.2018.

Research output: Contribution to journalArticle

Lim, Sungmook ; Koo, Hyunji ; Kim, Choul Young ; Kim, Jungsoo ; Rieh, Jae-Sung ; Hong, Songcheol. / 290-GHz 17-dB on-/off-Ratio Modulator With Resonance Control Varactors. In: IEEE Microwave and Wireless Components Letters. 2018.
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