Substrate-Integrated-Waveguide (SIW) Single-Pole-Double-Throw (SPDT) Switch for X-Band Applications

Lim, Inseop; Lim, Sungjoon

doi:10.1109/lmwc.2014.2321065

Cited by 33 publications

(22 citation statements)

References 8 publications

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“…In the off-state, when an external dc magnetic bias (dH) is applied to the ferrite slab, the effective permeability of the ferrite becomes negative [8]. As shown in Fig.…”

Section: A Siw Switch With a Single Ferrite Slabmentioning

confidence: 99%

Surface-Loaded Ferrite Substrate Integrated Waveguide Switch

Huang

Cheng

2015

IEEE Microw. Wireless Compon. Lett.

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In this letter, a magnetically controlled surface-loaded ferrite single pole single through (SPST) switch is presented. The ferrite slab is loaded on the broad wall surface of a substrate integrated waveguide (SIW). When a dc magnetic bias is applied to the ferrite slabs, the effective permeability of the ferrite becomes negative. In this case, the wave will be cut off. After investigating the design principle, an X-band switch prototype is fabricated and measured. Its insertion loss is less than 1.6 dB, return loss is better than 15 dB, and isolation is better than 27 dB in a frequency range from 9.5 to 11 GHz.Index Terms-Substrate integrated waveguide (SIW), surfaceloaded ferrite, switch.

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“…In the off-state, when an external dc magnetic bias (dH) is applied to the ferrite slab, the effective permeability of the ferrite becomes negative [8]. As shown in Fig.…”

Section: A Siw Switch With a Single Ferrite Slabmentioning

confidence: 99%

Surface-Loaded Ferrite Substrate Integrated Waveguide Switch

Huang

Cheng

2015

IEEE Microw. Wireless Compon. Lett.

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“…That way, the textile‐integrated structure can be reconfigured. When designing such a textile‐integrated switch, concepts implemented by a conventional substrate‐integrated technology can be applied.…”

Section: Introductionmentioning

confidence: 99%

“…In Reference , authors presented a switchable T‐divider. Traveling waves were controlled by inductive posts.…”

Section: Introductionmentioning

confidence: 99%

“…When implementing conventional substrate‐integrated switches by textile technologies, specific features of textile‐integrated structures have to be taken into account: manufacturing accuracies are lower, mechanical stability of 3D knitted fabrics is lower, losses of screen‐printed surfaces are higher, variations of electrical and mechanical parameters are wider, and so on. Therefore, the above‐given conventional concepts were simulated and tested from the viewpoint of textile‐related features.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the above‐given conventional concepts were simulated and tested from the viewpoint of textile‐related features. As an optimum solution, the reconfigurable textile T‐junction was decided to follow the design published in Reference with the following modifications: As the fundamental shape of the T‐junction, the rectangular SIW structure was used. This structure is less sensitive to manufacturing inaccuracies and can be simply sewed by a machine. Controllable posts were shifted to the input of branches.…”

Section: Introductionmentioning

confidence: 99%

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Textile‐integrated waveguide switch for ISM band 5.8 GHz

Cupal

Raida

2020

Micro & Optical Tech Letters

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In this article, a textile‐integrated waveguide (TIW) switch designed for the ISM band 5.8 GHz is presented. Conductive surfaces of the switch are manufactured by screen printing using a silver paste, and side walls of the TIW are sewed by a conductive thread. The switch is based on a common TIW T‐divider which is completed by controllable conductive posts in both branches. The controllable posts can be switched from the high‐impedance state to the low impedance state (and vice versa) by connecting or disconnecting them to the conductive layers by PIN diodes. Transmissions of the open branch of the switch and the closed one are |S21| = −1.5 dB and |S31| = −14.9 dB, respectively. If the manufactured switch is completed by transitions from TIW to coaxial line, the transitions of the open branch and the closed one are|S21| = −6.2 dB and |S31| = −15.6 dB, respectively.

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Recent advances in theory and applications of substrate-integrated waveguides: A review

Sahu

Devabhaktuni

Mishra

et al. 2015

Int J RF and Microwave Comp Aid Eng

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The use of substrate integrated waveguides (SIW) for microwave and millimeter wave integrated components has increased dramatically over the last decade. They mimic the performance of conventional metallic waveguides and they are fabricated using printed circuit boards using the top and bottom metallization with two rows of vias forming the side walls. This creates a low profile, compact, and light weight alternative to conventional metallic waveguides, and they allow a direct interconnection with printed circuit boards and active components. This article reviews the fundamental theory, documents the research that has been performed over the past decade, and summarizes progress up to the recent state-of-the-art including novel SIW structures for passive circuits and antennas as well as new applications for reconfigurable and printed circuits using SIW technology.

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Substrate-Integrated-Waveguide (SIW) Single-Pole-Double-Throw (SPDT) Switch for X-Band Applications

Cited by 33 publications

References 8 publications

Surface-Loaded Ferrite Substrate Integrated Waveguide Switch

Surface-Loaded Ferrite Substrate Integrated Waveguide Switch

Textile‐integrated waveguide switch for ISM band 5.8 GHz

Recent advances in theory and applications of substrate-integrated waveguides: A review

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