Substrate Integrated Waveguides (SIWs) in a Flexible Printed Circuit Board for Millimeter-Wave Applications

Yousef, Hanna; Cheng, Shi; Kratz, Henrik

doi:10.1109/jmems.2008.2009799

Cited by 8 publications

(2 citation statements)

References 27 publications

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“…Yousef et al fabricated a substrate-integrated waveguide (SIW) in flexible polyamide material for millimeter-wave applications. 123 The estimated attenuation per unit length of SIW was comparable to that of microstrip lines at 79 GHz. The SIW-based slot showed a gain of 2.8 dBi and front-to-back ratio of more than 15 dB at 78 GHz.…”

Section: Waveguide Devicesmentioning

confidence: 85%

Applications of Microwave Materials: A Review

Raveendran

Sebastian

Raman

2019

Journal of Elec Materi

147

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The performance of microwave devices mainly depends on the properties of materials used in the fabrication. Knowledge of material properties at microwave frequencies is a prerequisite to select suitable materials for various microwave applications and vice versa. In this review, seven categories of materials and their applications in a microwave regime are elaborately discussed. The categories include magnetic materials, carbon-based materials, flexible or stretchable materials, biomaterials, phantoms, tunable materials and metamaterials. A brief overview of other important microwave materials such as low-loss ceramic dielectric materials, low-loss polymer ceramic composites, glass ceramics and multilayer ceramics is also given. The objective of this review is to expose the world of materials for wide microwave applications and thereby properly assisting the material selection for specific applications. Moreover, this review has dual significance. It helps material scientists to develop new materials and modify the properties of the available materials with respect to the application requirements. It also assists microwave engineers to select and use appropriate materials for different microwave applications.

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Section: Waveguide Devicesmentioning

confidence: 85%

Applications of Microwave Materials: A Review

Raveendran

Sebastian

Raman

2019

Journal of Elec Materi

147

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“…There are two main types of SIW that have been reported during the last decade [17]- [20]: 1) dielectric-filled, which is most common, and 2) hollow substrate integrated waveguide (HSIW). In [20], a slot antenna demonstrated based on a dielectric-filled SIW structure using the electrodeposition fabrication was presented. It consists of very thin and closely spaced metallic wires to reduce the leakage loss but the propagation loss was compromised due to the lossy dielectric substrate.…”

Section: Introductionmentioning

confidence: 99%

3D Rapid-Prototyped 21-31-GHz Hollow SIWs for Low-Cost 5G IoT and Robotic Applications

et al. 2021

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This article presents, for the first time, new design and fabrication techniques for Hollow Substrate Integrated Waveguides (HSIWs), demonstrated in the nominal frequency from 21 to 31 GHz, for use in wireless communication applications such as 5G, IoT and robotics. The design and fabrication techniques introduced in this paper feature: 1) the use of low-cost rapid prototyping additive manufacturing based on polymer jetting (PJ), and 2) the use of commercially available through-substrate copper via transitions. In contrast to the conventional SIW designs and fabrications, this new approach does not rely on through-substrate via fabrication, hence avoiding some difficult manufacturing steps, such as through-substrate etching, via formation and via metallization, which are considered complex and expensive to implement. The 3D printed HSIWs in this article can achieve a propagation loss of lower than 1.56 Np/m (13.55 dB/m), which is considered one of the results with the lowest propagation loss achieved to date, when compared to the state-of-the-art.

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