Coplanar ring divider with wideband high isolation performance

Li, C., Lok, L.B., Khalid, A. and Cumming, D.R.S. (2011) Coplanar ring divider with wideband high isolation performance. Progress in Electromagnetics Research Letters, 25, pp. 1-10.

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In this letter, the design and measurement of a new ring power divider exhibiting wideband high isolation is presented. Coplanar techniques are used to achieve a compact and truly uniplanar design. The design is demonstrated by a prototype, operating at K-band, that has been monolithically fabricated using a GaAs MMIC process with airbridge technology. The measured insertion loss is 0.6 dB at the center design frequency of 25 GHz. The output port isolation is better than 20 dB across a wide bandwidth from 10 MHz to 50 GHz. The output amplitude and phase balance is within ±0.5 dB and ±2°, respectively, in the bandwidth from 10 MHz to 43 GHz.

Item Type:Articles (Letter)
Glasgow Author(s) Enlighten ID:Li, Dr Chong and Cumming, Professor David and Lok, Dr Lai Bun and Khalid, Dr Ata-Ul-Habib
Authors: Li, C., Lok, L.B., Khalid, A., and Cumming, D.R.S.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Research Group:MST
Journal Name:Progress in Electromagnetics Research Letters
Journal Abbr.:PIER LETTERS
Published Online:01 January 2011

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
449212TeraHertz planar Gunn diodesDavid CummingEngineering & Physical Sciences Research Council (EPSRC)EP/F014791/1Electronic and Nanoscale Engineering