Low-Dispersive Transition from Circular Metallic to Circular Dielectric Waveguides at W-Band Frequencies

Meyer, Andre; Kruger, Kristina; Obermeyer, Joshua; Schneider, Martin

doi:10.23919/gemic.2019.8698177

Cited by 2 publications

(2 citation statements)

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“…For each back-to-back PCB pair, four random pairs of dielectric structures are chosen. The crosstalk S y 31 is measured by a WR10-to-DWG transition presented in [20] that is flipped by 90°and connected to the DWG port of the MSL-to-DWG transitions. Exactly like in the first measurement, every dielectric structure is combined with each of the PCBs.…”

Section: Measurementmentioning

confidence: 99%

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Robust design of a broadband dual-polarized transition from PCB to circular dielectric waveguide for mm-wave applications

Meyer

Schneider

2020

Int. J. Microw. Wireless Technol.

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A growing interest in dielectric waveguides (DWGs) as an alternative to commonly used waveguides (like coaxial or twisted-pair cables) for high data rate interconnects could be observed in the last few years. Especially in the mm-wave frequency range (30–300 GHz) applications with these waveguides benefit from low losses and low dispersion. Moreover, using both polarizations of the fundamental mode in such waveguides could theoretically double the data rate without the need of higher bandwidth or additional fibers. The connection between DWGs and commonly available transceiver chips requires broadband transitions from planar waveguides like microstrip lines to DWGs. In this paper, an overview of the current developments of such transitions is given and a novel low-complexity design is presented that reduces the space consumption by 35% related to recently published works. This allows an easy integration into a printed circuit board layout or a chip package. Furthermore, an extensive sensitivity analysis is presented to prove the robustness toward manufacturing tolerances. The transition is realized at W-band frequencies (75–110 GHz) and achieves a relative 10 dB-bandwidth of more than 25% with a minimum insertion loss of 1.2 dB. It is shown that these properties even hold for manufacturing tolerances of nowadays manufacturing processes.

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Section: Measurementmentioning

confidence: 99%

“…For this purpose, in our transition, a dielectric taper is added to the single-mode section to adapt the transition to the core diameter of a multi-mode DWG. Similar to the approach presented in [20], a cosine-shaped dielectric taper is used to couple a wave from a single-mode DWG into a multi-mode DWG with negligible higher order mode excitation.…”

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confidence: 99%