Ortho-Mode Sub-THz Interconnect Channel for Planar Chip-to-Chip Communications

Yu, Bo; Ye, Yu; Ding, Xuan; Wang, Kun; Xu, Zhiwei; Liu, Xiaoguang; Gu, Qun Jane

doi:10.1109/tmtt.2017.2779496

Cited by 44 publications

(16 citation statements)

References 34 publications

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“…Table 2. Comparison of recently published vertical PCB-to-DWG transitions [11] TMTT'16 [11] MWCL'16 [12] TMTT'18 [14] IMS'18 [15] TMTT'18 [16] This work ( Fig. 1(a)) ( Fig.…”

Section: Measurementmentioning

confidence: 95%

“…Since equation (1) can not be fulfilled in case of a high coupling efficiency with available materials, the propagation of higher order modes is possible in this section of the transition. If both patches or DWG and PCB are not perfectly centered, higher order modes [11], (b) Linearly polarized parasitic patch with metallic aperture [12], (c) Dual-polarized parasitic patch with dielectric sphere [15], and (d) Dual-polarized probe feed transition with feeding network [16].…”

Section: Transition Designmentioning

confidence: 99%

“…

Fig. 1.An overview of recently published transitions from PCB to DWG with vertical alignment: (a) Linearly polarized patch [11], (b) Linearly polarized parasitic patch with metallic aperture [12], (c) Dual-polarized parasitic patch with dielectric sphere [15], and (d) Dual-polarized probe feed transition with feeding network [16]. …”

Section: Introductionmentioning

confidence: 99%

“…A totally different approach can be seen in Fig. 1(d) [16] where a differential fed probe transition allows broadband and dual-polarized operations. This transition comes without metallic aperture but needs a feeding network that increases space consumption and requires an additional layer.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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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“…Table 2. Comparison of recently published vertical PCB-to-DWG transitions [11] TMTT'16 [11] MWCL'16 [12] TMTT'18 [14] IMS'18 [15] TMTT'18 [16] This work ( Fig. 1(a)) ( Fig.…”

Section: Measurementmentioning

confidence: 95%

Section: Transition Designmentioning

confidence: 99%

“…

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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show abstract

“…The use of low-loss materials or different designs (e.g. hollow core fibers) for DWGs [7][8][9] as well as the enhanced coupling into DWGs [10][11][12][13][14] ensure a low insertion loss of the transmission channel and therefore increase the SNR at the receiver. In addition to signal distortions caused by noise, a broadband signal transmitted along a DWG is also disturbed by the frequencydependent propagation characteristics of the DWG channel.…”

Section: Introductionmentioning

confidence: 99%

Signal distortions in circular dielectric waveguides at mm-wave frequencies

Meyer

Schneider

2021

Int. J. Microw. Wireless Technol.

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Despite the great progress in data transmission systems using dielectric waveguides (DWGs) in the millimeter-wave (mm-wave) frequency band (30–300 GHz), the signal distortions caused by DWGs have not yet been fully understood. However, such investigations would help to optimize DWGs as a transmission channel in order to further increase data rate and transmission distance of such systems without the need for more complex transceivers. Therefore, this paper presents a detailed study of the expected signal distortions caused by frequency-dependent attenuation and frequency-dependent group delay of circular DWGs at mm-wave frequencies. Based on a low-complexity digital transmission system, the effects of DWGs on the signal-to-noise ratio and the intersymbol interference at the receiver are evaluated. The figures and equations given in this paper allow the reader to easily calculate the channel properties and signal distortions for a wide range of circular DWGs without the need of finite element method solver or other time-consuming numerical simulations. Finally, design recommendations are given to minimize signal distortions for transmitting signals along DWGs.

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Coupling analysis of polytetrafluoroethylene dielectric waveguides in the sub‐THz band

Liao

Xue

et al. 2023

Micro & Optical Tech Letters

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This letter investigates the coupling between two parallel‐placed polytetrafluoroethylene (PTFE) dielectric waveguides over the frequency band from 90 to 110 GHz. The coupling is considered under different working frequencies, coupling spacings, coupling lengths, and polarizations. Simulations and measurements are carried out, and the results indicate the coupling can be significantly reduced by increasing the operating frequency and coupling spacing and adopting vertical polarization (VP) for a specific coupling length. In particular, the simulated and measured results with a 9‐mm coupling distance under two polarization states can be kept under −30 dB for 50‐ and 100‐mm coupling lengths, leading to negligible interference. In the practical arrangement of PTFE dielectric waveguides working at the other frequencies, one can follow the same rule to reduce the coupling between waveguides and thus avoid interference.

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Ortho-Mode Sub-THz Interconnect Channel for Planar Chip-to-Chip Communications

Cited by 44 publications

References 34 publications

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

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

Signal distortions in circular dielectric waveguides at mm-wave frequencies

Coupling analysis of polytetrafluoroethylene dielectric waveguides in the sub‐THz band

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