24GHz Zero-Bias Asymmetrical Spacer Layer Tunnel Diode Detectors

Omar Abdulwahid, Saad G. Muttlak, J. Sexton, M. Missous, M. J. Kelly

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work reports on a novel temperature-insensitive zero-bias GaAs/AlAs Asymmetric Spacer Layer Tunnel diode (ASPAT) detector with a curvature coefficient is 18V-1. The detector was fabricated and experimentally measured in the frequency band (15 to 35) GHz at various input powers. The maximum measured sensitivity is 1300 V/W at 24GHz for a -27dBm incident RF power. The minimum calculated noise equivalent power ∼ 20W/√Hz. The detector shows good performances, comparable to reported detectors based on Schottky or backward diodes. The results reported here validate the physical model developed which can be used to design and fabricate low cost, low power, temperature insensitive high-frequency tunnel diode detector for a range of applications.

Original languageEnglish
Title of host publication12th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2019
PublisherIEEE
ISBN (Electronic)9781728129914
DOIs
Publication statusPublished - Aug 2019
Event12th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2019 - London, United Kingdom
Duration: 20 Aug 201922 Aug 2019

Publication series

Name12th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2019

Conference

Conference12th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2019
Country/TerritoryUnited Kingdom
CityLondon
Period20/08/1922/08/19

Keywords

  • equivalent circuit model
  • tunnel diode
  • voltage sensitivity
  • zero-bias detector

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