<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>10408</id>
    <completedYear/>
    <publishedYear>2003</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>223</pageFirst>
    <pageLast>226</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>IEEE Service Center</publisherName>
    <publisherPlace>Piscataway, NJ</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2014-03-14</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Low phase noise MMIC VCOs for Ka-band applications with improved GaInP/GaAs-HBT technology</title>
    <abstract language="eng">We report on the technology and performance of fully monolithic coplanar voltage-controlled oscillators (VCOs) with GaInP/GaAs-HBTs as the active devices. With our optimized HBT process, the parasitic base resistance R/sub B/ and extrinsic base-collector capacitance C/sub EX/ are significantly reduced. In this way, the maximum frequency of oscillation F/sub max/ is increased from 100 to 170 GHz. This allows us to realize fundamental 38 GHz-VCOs with very low phase noise. At an oscillation frequency F/sub res/=34.2/spl plusmn/0.2 GHz, the VCO reaches phase noise levels of -87 dBc/Hz @ 100 kHz and -108 dBc/Hz @ 1 MHz offset frequency, respectively. To our knowledge, these phase noise values are the lowest GaAs data for Ka-band applications reported so far.</abstract>
    <parentTitle language="eng">Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2003, 25th Annual Technical Digest 2003, San Diego, California, November 9 - 12, 2003</parentTitle>
    <identifier type="isbn">0-7803-7833-4</identifier>
    <identifier type="doi">10.1109/GAAS.2003.1252399</identifier>
    <enrichment key="BTU">nicht an der BTU erstellt / not created at BTU</enrichment>
    <author>
      <firstName>Jochen</firstName>
      <lastName>Hilsenbeck</lastName>
    </author>
    <submitter>
      <firstName>Friedrich</firstName>
      <lastName>Lenk</lastName>
    </submitter>
    <author>
      <firstName>Friedrich</firstName>
      <lastName>Lenk</lastName>
    </author>
    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Heinrich</lastName>
    </author>
    <author>
      <firstName>Joachim</firstName>
      <lastName>Würfl</lastName>
    </author>
    <collection role="old_institute" number="05031">Prof. Nachrichtentechnik</collection>
    <collection role="institutes" number="3182">FG Nachrichtentechnik</collection>
  </doc>
</export-example>
