Design of a broadband coaxial to substrate integrated waveguide (SIW) transition
01 Nov 2013-pp 896-898
TL;DR: In this article, a two-port SIW section using back-to-back configuration of the proposed transition is designed to operate at X-band (8-12 GHz), and measured result shows a broad bandwidth (30%) and an insertion loss of 1.2 dB in the operating band.
Abstract: In this paper, a novel design of broadband coaxial to substrate integrated waveguide (SIW) transition has been implemented. The difficulties to get impedance matching between SIW and excitation port especially for thin substrate has been investigated and design steps to overcome the problem has been discussed. A two port SIW section using back-to-back configuration of the proposed transition is designed to operate at X-band (8-12 GHz) and fabricated. The measured result shows a broad bandwidth (30%) and an insertion loss of 1.2 dB in the operating band.
Citations
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Proceedings Article•
13 May 2015TL;DR: In this article, a transition from co-axial probe-to-substrate integrated waveguide (SIW) and from SIW-todielectric image line (DIL) is proposed in Ku-band (12-18 GHz).
Abstract: In this paper, a novel transition from co-axial probe-to-substrate integrated waveguide (SIW) and from SIW-to-dielectric image line (DIL) is proposed in Ku-band (12–18 GHz). The proposed transition is designed on a single substrate and thus eliminates complex multi-layer fabrication process for implementation of dielectric image line two port network. The proposed design is simulated on Ansoft HFSS and exhibits wide bandwidth performance. For probe-to-SIW back-to-back transition, the relative bandwidth (−20dB) is 38.5% and for back-to-back transition from probe-to-SIW and from SIW-to-DIL, the relative bandwidth (−15dB) is 24.5%. The insertion loss is better than 3.2 dB throughout the operating bandwidth. Detailed studies on dimensions of the matching network is also discussed. The results are also verified by using CST Microwave Studio.
9 citations
Cites background or methods from "Design of a broadband coaxial to su..."
...The transition from coaxial probe-to-SIW has been developed in [10], [11], [12]....
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...The transition designed in [12] has wide relative bandwidth but it is not suitable for thick substrate....
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...impedance of SIW section is given by [12] w PI Z a b Z ....
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...A similar equivalent circuit is also proposed in [12]....
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16 Jul 2018
TL;DR: The complete modeling of proposed planar transition is presented and the robustness of the design is validated for different dielectric constant and thickness making it worthy for practical applications.
Abstract: This article, presents a novel technique to model a wideband coaxial to substrate integrated coaxial line (SICL) transition. The proposed design is a planar implementation of the male to female connection usually observed in coaxial connections in conventional circuit. Firstly, a $50\ \Omega$ SICL section is designed. The coaxial probe of equal impedance passing through a metallic via with slightly greater diameter is then connected to the inner conductor of SICL. The reactive component produced at the SICL-Coaxial junction is nullified by placing a short-circuit section at an optimal distance from it. The proposed transition demonstrates a broadband matching of greater than 20 dB for 0 to 32.7 GHz with very low insertion loss of better than 0.1 dB throughout the band. The complete modeling of proposed planar transition is presented and the robustness of the design is validated for different dielectric constant and thickness. The designed back to back transition exhibits wideband matching with very low insertion loss making it worthy for practical applications.
8 citations
01 Jul 2015
TL;DR: In this paper, a new ferrite-loaded substrate integrated waveguide (SIW) frequency tunable bandpass filter is presented, which can be adjusted from 12.5 GHz to 13.4 GHz.
Abstract: In this paper, a new ferrite-loaded substrate integrated waveguide (SIW) frequency tunable bandpass filter is presented. Two ferrite slabs are loaded in the sidewall of a substrate integrated waveguide. When a DC magnetic bias is applied to the ferrite slabs, the equivalent width of the ferrite-loaded SIW is changed, which contributes to the tuning ability. Then, an inductive post bandpass filter is designed based on this theory. Its operating frequency can be adjusted from 12.5 GHz to 13.4 GHz. Within this frequency range, an insertion loss of less than 1.6 dB and a return loss of better than 15 dB are achieved.
7 citations
28 Feb 2017
TL;DR: Substrate Integrated Waveguide (SIW) adalah saluran transmisi ying mampu menghantarkan sinyal frekuensi tinggi dengan kerugian yang kecil, tetapi memiliki kemampuan mengintegrasikan banyak komponen.
Abstract: Perkembangan sistim komunikasi wireless mendorong dipergunakannya spectrum frekuensi yang tinggi untuk mendapatkan peluang memberikan sistim dengan kecepatan transfer data yang tinggi. Substrate Integrated Waveguide (SIW) adalah saluran transmisi yang mampu menghantarkan sinyal frekuensi tinggi dengan kerugian yang kecil, tetapi memiliki kemampuan mengintegrasikan banyak komponen. Untuk melewatkan sinyal dari saluran planar ke SIW diperlukan struktur transisi yang memiliki factor refleksi yang kecil. Di penelitian ini pertama-tama dilakukan studi dasar struktur SIW dengan variasi besaran pentingnya, yaitu efek dari diameter silinder metal d dan jarak pitch antar silinder p dan studi terhadap macam-macam jenis dan bentuk transisi yang telah diperkenalkan berbagai publikasi dan dilakukan telaah terhadap realibilitasnya dan kemungkinan pengembangannya.
3 citations
01 Dec 2015
TL;DR: In this article, the effect of probe dimensions on the excitation of substrate integrated waveguide (SIW) in thick substrate in X (8-12 GHz) and Ku (12-18 GHz) frequency band is presented.
Abstract: The effect of probe dimensions on the excitation of substrate integrated waveguide (SIW) in thick substrate in X (8– 12 GHz) and Ku (12–18 GHz)-frequency band is presented. The SIW is excited by a standard SMA connector and with K-connector and their performances are compared. The proposed transition is simulated using Ansof HFSS. The simulated bandwidth (S11< −20dB) for standard SMA-to-SIW back-to-back transition is 38.65% and for the K-connector-to-SIW back-to-back transition it is improved up to 61.81%.
3 citations
Cites background or methods from "Design of a broadband coaxial to su..."
...A wideband transition from coaxial probe-to-SIW is presented in [5], but it is also not suitable for thick substrate....
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...The characteristics impedance of TE10 mode of SIW is given by [5] ....
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References
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TL;DR: In this paper, a planar platform is developed in which the microstrip line and rectangular waveguide are fully integrated on the same substrate, and they are interconnected via a simple taper.
Abstract: Usually transitions from microstrip line to rectangular waveguide are made with three-dimensional complex mounting structures. In this paper, a new planar platform is developed in which the microstrip line and rectangular waveguide are fully integrated on the same substrate, and they are interconnected via a simple taper. Our experiments at 28 GHz show that an effective bandwidth of 12% at 20 dB return loss is obtained with an in-band insertion loss better than 0.3 dB. The new transition allows a complete integration of waveguide components on substrate with MICs and MMICs.
1,631 citations
"Design of a broadband coaxial to su..." refers background in this paper
...Many attempts to excite SIW using microstrip line or co-planar waveguide have been reported in recent years [3]-[5]....
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TL;DR: In this article, the authors provide an overview of the recent advances in the modelling, design and technological implementation of SIW structures and components, as well as their application in the development of circuits and components operating in the microwave and millimetre wave region.
Abstract: Substrate-integrated waveguide (SIW) technology represents an emerging and very promising candidate for the development of circuits and components operating in the microwave and millimetre-wave region. SIW structures are generally fabricated by using two rows of conducting cylinders or slots embedded in a dielectric substrate that connects two parallel metal plates, and permit the implementation of classical rectangular waveguide components in planar form, along with printed circuitry, active devices and antennas. This study aims to provide an overview of the recent advances in the modelling, design and technological implementation of SIW structures and components.
1,129 citations
"Design of a broadband coaxial to su..." refers background in this paper
...Several studies of implementing different microwave components using this technology have been reported in many literatures [2]....
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TL;DR: In this paper, a waveguide of new structure has been developed for millimeter-wave applications, which can be embedded in a substrate and is able to be wired in three dimensions, and its transmission characteristics are evaluated using a glass-ceramic substrate of dielectric constant, /spl epsiv/sub r/=5, and loss, tan /spl delta/=0.0008.
Abstract: A waveguide of new structure has been developed for millimeter-wave applications. The dielectric waveguide is constructed with sidewalls consisting of lined via-holes and edges of metallized planes. This structure can be manufactured by lamination techniques, so we refer to the waveguide as a "laminated waveguide". The laminated waveguide can be embedded in a substrate and is able to be wired in three dimensions. The transmission characteristics are evaluated using a glass-ceramic substrate of dielectric constant, /spl epsiv//sub r/=5, and loss, tan /spl delta/=0.0008. Insertion loss per unit length of the guide is estimated to be less than 0.5 dB/cm at 83 GHz. Furthermore, it was confirmed that the laminated waveguide is suitable to feeding lines for a small sized plane array antenna. By electromagnetic simulation, it has been confirmed that fundamental structures, such as bends, branches, power dividers, and interconnections between upper and lower layers can be realized with sufficient performances.
493 citations
"Design of a broadband coaxial to su..." refers background in this paper
...In recent years, studies on substrate integrated waveguide (SIW) technology has attracted high interest among the researchers since it is very good candidate for high frequency microwave and millimeter-wave circuits [1]....
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20 May 2001
TL;DR: In this paper, a planar platform is developed in which a coplanar waveguide and a rectangular waveguide are fully integrated on the same substrate, and they are interconnected via a simple transition.
Abstract: Usual transitions between planar circuit and rectangular waveguide make use of 3-D complex mounting structures. Such an integration requires costly high precision mechanical alignment, In this paper, a new planar platform is developed in which a coplanar waveguide (CPW) and a rectangular waveguide are fully integrated on the same substrate, and they are interconnected via a simple transition. They can be built with a standard PCB process. Our experiments at 28 GHz show that an effective bandwidth of 7% at 15 dB return loss can easily be achieved. The CPW-to-waveguide transition allows for a complete integration of waveguide components on substrate with active components such as MMIC.
208 citations
03 Apr 2012
TL;DR: A novel ultra-wideband GCPW to SIW transition is developed that integrates the coupling slot and impedance transformer into one tapered coupling slot to achieve an ultra wide bandwidth.
Abstract: In this paper, a novel ultra-wideband GCPW to SIW transition is developed. The transition integrates the coupling slot and impedance transformer into one tapered coupling slot to achieve an ultra wide bandwidth. The tapered coupling slot converts the arbitrary impedance of the SIW to the GCPW port impedance. The vias were strategically located to suppress unwanted modes across the transition as well. The fabricated transition demonstrated over 10 GHz bandwidth with less than 0.4 dB insertion loss at X-band. Theoretical and experimental results are presented and compared with previously designed transitions.
67 citations