Extremely Low-Loss Planar Transition from Hollow Dielectric Waveguide to Printed Circuit Board for Millimeter-Wave Interconnect
Journal
IEEE Transactions on Microwave Theory and Techniques
Journal Volume
69
Journal Issue
9
Pages
4010-4020
Date Issued
2021
Author(s)
Abstract
An extremely low-loss and high-speed millimeter-wave (mm-wave) interconnect based on hollow dielectric waveguide (HDW) is demonstrated. Though HDW is renowned for its distinguishably low-loss transmission among all dielectric-based competitors, it is criticized for the difficulty of smooth power transition from HDW to planar backplane systems. This article presents a novel approach for planar transition from tubular HDW to printed circuit board (PCB). The proposed transition circuit is composed of a dipole-antenna-like power coupler, a matching metal adapter, and a tapered horn. The experimental result shows only 0.68-dB transition loss at 58 GHz, which is the best value compared to other approaches in the literature. In addition, thorough analysis and modeling for the proposed technique are obtained. It implies the opportunity to apply this approach for applications in higher frequency by scaling. The 16 quadrature amplitude modulation (16QAM) communication over the proposed 1-m interconnect is demonstrated with a maximum data rate of 34 Gb/s. This technique provides an extremely low-loss and structurally stable solution for HDW-based interconnect and transition, which is expected to be applied for 5G/6G high-throughput communication in the near future. ? 1963-2012 IEEE.
Subjects
Hollow dielectric waveguide (HDW)
Interconnect
Low loss
Millimeter wave (mm-wave)
Multigigabit
Quadrature amplitude modulation (QAM)
Transition
5G mobile communication systems
Dielectric waveguides
Dipole antennas
Microwave circuits
Millimeter waves
Quadrature amplitude modulation
Timing circuits
16 quadrature amplitude modulations (16QAM)
Analysis and modeling
High throughput
Higher frequencies
Hollow dielectric waveguides
Millimeter-wave (mm-wave)
Printed circuit boards (PCB)
Stable solutions
Printed circuit boards
Type
journal article