CPW high Q inductors on organic substrates

Sidharth Dalmia, Seock Hee Lee, Venky Sundaram, Sung Hwan Min, Madhavan Swaminathan, Rao Tummala

Research output: Contribution to conferencePaperpeer-review

6 Scopus citations

Abstract

The development of integrated passive components suitable for integration with printed wiring boards is relatively recent. This integration is required since in most mixed signal design, off-passive components take up more real estate on the boards than the analog and digital signal processing units. Besides utilizing real estate on board, embedded passives on organic laminates significantly reduce cost and if optimized have less parasitics compared to discrete passive components. This paper discusses the design of high Q coplanar waveguide (CPW) planar inductors on laminates. The reason for choosing a CPW type layout is the ease in adding shunt elements and series elements compared to stripline and microstrip configurations. A max Q factor of 85 at 5.2 GHz was obtained for a 1.85 nH CPW type inductor. Several other inductors with similar performances were studied which are also presented. The paper also presents a method to model the CPW type inductors. This approach allows designers to include metal-to-dielectric interface roughness, non-uniform signal line profiles and frequency dependent parameters such as the dielectric constant of materials.

Original languageEnglish (US)
Pages105-108
Number of pages4
StatePublished - 2001
EventIEEE 10th Topical Meeting on Electrical Performance of Electronic Packaging - Cambridge, MA, United States
Duration: Oct 29 2001Oct 31 2001

Conference

ConferenceIEEE 10th Topical Meeting on Electrical Performance of Electronic Packaging
Country/TerritoryUnited States
CityCambridge, MA
Period10/29/0110/31/01

All Science Journal Classification (ASJC) codes

  • General Engineering

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