Journal ArticleDOI
Coupling Analysis of Adjacent Substrate-Integrated Waveguides Based on the Equivalent Transmission Line Model
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In this article, the coupling between two adjacent substrate-integrated waveguides sharing a common row of metallic cylinders is analyzed based on the concept of equivalent circuit and wavenumber calculation.Abstract:
This article presents a method for analyzing the coupling between two adjacent substrate-integrated waveguides (SIWs) sharing a common row of metallic cylinders, which is based on the concept of equivalent circuit and wavenumber calculation. When the specific sizes of two adjacent SIWs are known, the scattering parameters of the shared common row of metallic cylinders can be derived, and the equivalent transmission line model of the SIW coupling structure is extracted. The even-and odd-mode wavenumbers in both transverse and propagating directions are calculated for this equivalent circuit. For an ideal forward-wave directional coupler, the transmission and coupling coefficient are then derived directly from the wavenumber and the length of the structure. Based on the proposed method, three SIW directional couplers with different coupling levels are designed and fabricated for verification. Good agreements between the calculated and simulated coupling parameters are observed. The proposed method provides a simple and accurate approach to estimate the coupling between two closely spaced SIWs sharing one common row of metallic cylinders and is expected to use for the design of millimeter-wave SIW-based circuits and systems.read more
Citations
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Journal ArticleDOI
A simple SIW balanced directional coupler with high common‐mode suppression
TL;DR: In this article , a simple balanced directional coupler with high commonmode suppression is designed by using a single layer substrateintegrated waveguide (SIW), which can be considered a naturally balanced structure.
Journal ArticleDOI
Analysis and design of weak coupling coupler based on the half mode substrate integrated waveguide
TL;DR: In this article , the authors proposed a weak coupling coupler architecture similar to the branch line coupler, where metal via arrays are used to reshape the electric field distribution of the SIW structure, making the overall structure achieve weak coupling characteristics.
References
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Journal ArticleDOI
Millimeter Wave Mobile Communications for 5G Cellular: It Will Work!
Theodore S. Rappaport,Shu Sun,Rimma Mayzus,Hang Zhao,Yaniv Azar,Kevin H. Wang,George N. Wong,Jocelyn K. Schulz,Mathew K. Samimi,Felix Gutierrez +9 more
TL;DR: The motivation for new mm-wave cellular systems, methodology, and hardware for measurements are presented and a variety of measurement results are offered that show 28 and 38 GHz frequencies can be used when employing steerable directional antennas at base stations and mobile devices.
Book
Field theory of guided waves
TL;DR: In this paper, the authors present a model for waveguide decomposition in terms of waveguide discontinuities and waveguides and cavities, and apply it to artificial dielectrics.
Journal ArticleDOI
Millimeter-Wave Cellular Wireless Networks: Potentials and Challenges
TL;DR: Measurements and capacity studies are surveyed to assess mmW technology with a focus on small cell deployments in urban environments and it is shown that mmW systems can offer more than an order of magnitude increase in capacity over current state-of-the-art 4G cellular networks at current cell densities.
Journal ArticleDOI
Millimeter-wave beamforming as an enabling technology for 5G cellular communications: theoretical feasibility and prototype results
Won-Il Roh,Ji-Yun Seol,Jeong-Ho Park,Byunghwan Lee,Jae-kon Lee,Yung-soo Kim,Jae-Weon Cho,Kyungwhoon Cheun,Farshid Aryanfar +8 more
TL;DR: This article presents recent results from channel measurement campaigns and the development of advanced algorithms and a prototype, which clearly demonstrate that the mmWave band may indeed be a worthy candidate for next generation (5G) cellular systems.
Journal ArticleDOI
Three-dimensional millimeter-wave imaging for concealed weapon detection
TL;DR: In this paper, a widebandwidth three-dimensional holographic microwave imaging technique is described for the detection of concealed weapons or other contraband carried on personnel since millimeter-waves are nonionizing, readily penetrate common clothing material, and are reflected from the human body and any concealed items.