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Compact transition from CBCPW to substrate integrated suspended line (SISL) for operation up to 46 GHz

  • F. Parment (a1) (a2), A. Ghiotto (a1), T.-P. Vuong (a3), L. Carpentier (a2) and K. Wu (a4)...


A compact transition between conductor-backed coplanar waveguide (CBCPW) and substrate integrated suspended line (SISL) is presented. Compared to the reported transitions from CBCPW to SISL, performance and compactness are improved. For demonstration purpose, a multilayer transition is designed and fabricated for operation up to 46 GHz. Experimental results, based on an electronic calibration and thru–reflect–line calibration allowing measurement in the 0.01–50 GHz frequency range, demonstrate an insertion loss of 0.59 ± 0.51 dB with a return loss of better than 10 dB in the 10 MHz to 46 GHz frequency range.


Corresponding author

Author for correspondence: A. Ghiotto, E-mail:


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