Oversized Substrate-Integrated Waveguide for High-Power Millimeter-Wave Systems

Moulay, Ahmed; Djerafi, Tarek

doi:10.1109/tps.2020.3001828

Cited by 5 publications

(3 citation statements)

References 28 publications

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“…Several attempts have been achieved to improve the power capacity. The oversized waveguide can improve the power capacity by increasing the cross‐section diameter and reducing the reverse field under the same power flow 16–18 . Other ways also can improve the power capacity, such as vacuum pumping 19 and channel synthesis 20,21 .…”

Section: Introductionmentioning

confidence: 99%

“…The oversized waveguide can improve the power capacity by increasing the cross-section diameter and reducing the reverse field under the same power flow. [16][17][18] Other ways also can improve the power capacity, such as vacuum pumping 19 and channel synthesis. 20,21 Nevertheless, it is complicated and expensive to realize the vacuum structures.…”

Section: Introductionmentioning

confidence: 99%

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A high‐power dual‐mode oversized substrate‐integrated waveguide (OS‐SIW) filter with flexible transmission zero (TZ) and bandwidth

Zheng

et al. 2023

Micro & Optical Tech Letters

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This paper presents a high-power and sharp-skirt-selectivity bandpass filter with flexible transmission zero (TZ) and bandwidth. The proposed filter consists of three cascaded dual-mode resonant cavities and a bandstop resonant structure. The dualmode resonant cavity is composed of a substrate-integrated waveguide structure and a mushroom metal structure, which can implement a controllable bandwidth and generate a TZ for sharp skirt selectivity. Meanwhile, the middle dual-mode resonant cavity is an oversized waveguide structure to improve power capacity.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A high‐power dual‐mode oversized substrate‐integrated waveguide (OS‐SIW) filter with flexible transmission zero (TZ) and bandwidth

Zheng

et al. 2023

Micro & Optical Tech Letters

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show abstract

“…An interconnect based on a substrate-integrated waveguide (SIW) can provide an efficient solution for these requirements. The extensive study on SIWs has been initialized mainly in microwave applications since it shows high power capability compared with conventional microstrip lines [1][2][3][4][5][6][7][8][9][10]. Research on improving SIW characteristics has been continuously proposed [11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Experimental Characterization of Millimeter-Wave Substrate-Integrated Waveguide Interconnect with Slot Transition in Flexible Printed Circuit Boards

2022

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For high-speed communication services such as 5G technology, the use of millimeter-wave (mmWave) components substantially increases in mobile applications. The interconnect based on a substrate-integrated waveguide (SIW) is an efficient solution for connecting these devices. However, the SIW characteristics in the mmWave frequency range are not sufficiently presented from the practical viewpoint. In this paper, the experimental characterization of mmWave SIWs in flexible printed circuit boards (FPCBs) and their simulation results are presented. A practical method using balanced/single slot transition is proposed for microstrip-to-SIW transition. Using a full-wave simulation and genetic algorithm, the proposed slot technique is optimized. It is experimentally demonstrated that the cutoff frequency affects the operating band of the SIW differently. The per-unit-length losses of the full-mode and half-mode SIWs are obtained as 0.0375 dB/mm and 0.0609 dB/mm, respectively. Using the measurements, the SIW type effect on the transmission loss is quantitatively analyzed, and the loss is increased up to 62.4% at 39 GHz.

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Breakthrough design of power handling capability‐enhanced slotted oversized substrate‐integrated waveguide power divider/combiner considering corona and thermal effects

Souri,

Masoumi,

Mohammad‐Taheri

2024

IET Microwaves Antenna & Prop

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An analysis and design of a new slotted power divider/combiner (PDC) that utilises an oversized substrate‐integrated waveguide (OS‐SIW) is presented to enhance power handling capability (PHC). It is interesting to note that, the power capability tolerance can be increased by increasing the width of structure and thickness of the substrate, although it may introduce higher‐order modes. The paper is focused on improving PHC of PDC that propagates only the TE10 mode while preventing the propagation of higher‐order modes. Additionally, the PHC of the proposed structure is studied in detail. The air breakdown or the corona effect is a physical phenomenon that limits the Peak Power Handling Capability (PPHC) of a device. In slotted microwave components, the corona effect plays a crucial role in determining the PPHC, and it is closely related to environmental conditions such as pressure. Another limiting factor is self‐heating, which affects the device's Average Power Handling Capability (APHC). The slotted OS‐SIW PDC is designed on Rogers RO4003 laminate with 32mil thickness, offering a low profile with an overall OS‐SIW PDC area of 170 × 55 mm2. The measured results of the fabricated PDC showcase a range of desirable features. Moreover, the proposed structure in power divider mode exhibits significant improvements in APHC compared to those of the conventional Substrate‐Integrated Waveguides structures, with respective enhancements of approximately 8.26% at 10 GHz (with a Fractional Band Width of 58.3%). These advantages are highly beneficial and hold great potential.

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Oversized Substrate-Integrated Waveguide for High-Power Millimeter-Wave Systems

Cited by 5 publications

References 28 publications

A high‐power dual‐mode oversized substrate‐integrated waveguide (OS‐SIW) filter with flexible transmission zero (TZ) and bandwidth

A high‐power dual‐mode oversized substrate‐integrated waveguide (OS‐SIW) filter with flexible transmission zero (TZ) and bandwidth

Experimental Characterization of Millimeter-Wave Substrate-Integrated Waveguide Interconnect with Slot Transition in Flexible Printed Circuit Boards

Breakthrough design of power handling capability‐enhanced slotted oversized substrate‐integrated waveguide power divider/combiner considering corona and thermal effects

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