Conductor-backed coplanar waveguide on BCB with thin metal layers and via holes

Grimault-Jacquin, A.-S.; Zerounian, N.; Omar, Iméne Kaid; Crozat, P.; Amar, Farah; Villebasse, Cédric; Bouville, David; Hamouda, Frédéric; Aniel, F.

doi:10.23919/eumc.2019.8910775

Cited by 1 publication

(1 citation statement)

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“…However, the through-hole-free GCPW structure causes excitation of higher-order modes and energy leakage, making it difficult to extend the bandwidth no matter how the dielectric material and basic structure parameters are changed. To solve this problem, a through-hole array structure can be introduced to form a GCPW with a through-hole structure, so that the equivalent circuit parameters of the GCPW can be changed and the characteristic impedance can be adjusted, thus spreading the bandwidth of the GCPW [15]. The presence of vias can change the equivalent circuit parameters of the GCPW by adding inductance and capacitance, thus changing the characteristic impedance and electromagnetic field distribution of the GCPW.…”

Section: Research and Design Of The Through-hole Structure To Widen T...mentioning

confidence: 99%

Method to Change the Through-Hole Structure to Broaden Grounded Coplanar Waveguide Bandwidth

Zhu

Wan

Zhao

2023

Sensors

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A grounded coplanar waveguide (GCPW), as a millimeter wave special transmission line, can be used to calibrate broadband oscilloscope probes. A method to change the through-hole structure to widen the GCPW is investigated in this paper. The effect of the through-hole array on the band-width of the GCPW is investigated and verified using COMSOL Multiphysics simulation software. Finally, the S-parameters of the fabricated GCPWs are measured by a vector network analyzer, and the results show that they have an insertion loss > −3 dB and return loss < −10 dB in the frequency range of DC to 60 GHz, which satisfies the design requirements.

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Section: Research and Design Of The Through-hole Structure To Widen T...mentioning

confidence: 99%