Coplanar transitions based on aluminum nitride interposer substrate for terabit transceivers

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Abstract

This paper presents two types of coplanar transitions based on aluminum nitride (AlN) substrate for interposer designs of terabit transceivers. The designs of coupled coplanar waveguide (CCPW), coupled line, coplanar waveguide (CPW), and coplanar stripline (CPS) based on AlN substrate are explained. The effects of absorber layer and wire bonding bridges are described. Two types of coplanar transitions are designed and simulated in back-to-back configuration with wire bonding bridges. When driven by differential signal pair, the proposed CCPW-to-coupled line transition in back-to-back configuration with wire bonding bridges achieves a simulated return loss of 11 dB and insertion loss of 2 dB up to 110 GHz. As for single-ended signals, a CPW-to-CPS transition in back-to-back configuration with wire bonding bridges has been designed, fabricated, and measured. The fabricated CPW-to-CPS transition can provide a −3 dB transmission bandwidth up to 80 GHz with associated return loss better than 12 dB.
Original languageEnglish
Title of host publication2017 47th European Microwave Conference (EuMC)
PublisherIEEE
Publication date2017
Pages620-623
ISBN (Electronic)978-2-87487-047-7
DOIs
Publication statusPublished - 2017
Event2017 47th European Microwave Conference (EuMC) -
Duration: 10 Oct 201712 Oct 2017
Conference number: 47
http://www.eumweek.com/conferences/eumc.html

Conference

Conference2017 47th European Microwave Conference (EuMC)
Number47
Period10/10/201712/10/2017
Internet address

Keywords

  • III-V semiconductor materials
  • Substrates
  • Aluminum nitride
  • Bridges
  • Coplanar waveguides
  • Wires
  • Bonding

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