Coupling Analysis of Adjacent Substrate-Integrated Waveguides Based on the Equivalent Transmission Line Model

Wang, Xiyao; Deslandes, Dominic; Feng, Wenjie; Chen, Haidong; Che, Wenquan

doi:10.1109/tmtt.2020.2964771

Cited by 4 publications

(9 citation statements)

References 20 publications

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“…The inductive matching section near Port 2 is added with two inductive vias at a distance y v from the feeding position. The equivalent circuit of the inductive matching section with inductive vias can be given and shown in Figure 3C 16,17 . Electric field distributions at 14, 15, and 16 GHz are displayed in Figure 4A, from which it can be confirmed that good energy transition is realized.…”

Section: Analysis and Designmentioning

confidence: 88%

“…The equivalent circuit of the inductive matching section with inductive vias can be given and shown in Figure 3C. 16,17 Electric field distributions at 14, 15, and 16 GHz are displayed in Figure 4A, from which it can be confirmed that good energy transition is realized. Figure 4B gives the frequency responses with varied y v , while x v is fixed as 4 mm in the frequency range of 14-16 GHz.…”

Section: Siw Balanced Directional Coupler With Planar Differential Fe...mentioning

confidence: 91%

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A simple SIW balanced directional coupler with high common‐mode suppression

Sun

Zhao

Yang

et al. 2022

Micro & Optical Tech Letters

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In this letter, a simple balanced directional coupler with high common-mode (CM) suppression is designed by using a single-layer substrate-integrated waveguide (SIW). The SIW can be considered a naturally balanced structure.The CM noises are able to be intrinsically suppressed when differentially excited along the symmetric H-plane of SIW. The coupling window with tapered transition is designed for broadening the bandwidth of 3-dB coupling. The microstrip differential feeding structure with inductive vias and inductive matching section enables planar integration and better impedance matching. Finally, a SIW balanced directional coupler operating at 14-16 GHz is designed and fabricated. Measured results are in good agreement with simulated ones.

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Section: Analysis and Designmentioning

confidence: 88%

Section: Siw Balanced Directional Coupler With Planar Differential Fe...mentioning

confidence: 91%

A simple SIW balanced directional coupler with high common‐mode suppression

Sun

Zhao

Yang

et al. 2022

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…The SIW couplers with different coupling structures are proposed in [10][11][12][13][14][15][18][19][20]. However, the biggest problem with these coupling structures is that the design variables are single, and the coupling coefficient cannot be effectively controlled.…”

Section: The Analysis Of Design Theorymentioning

confidence: 99%

“…The propagation constant γ 1 and equivalent length l 1 can be obtained by bringing w 1 into equations ( 19) and ( 20). 4) Taking the coupling degree C required by design and other calculated variables into equations (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21), and calculating the equivalent width w 2 of coupling branch. 5) Optimizing L smm and W s in the electromagnetic simulation software, and adjusting the coupling and isolation in the entire frequency band.…”

Section: Can Be Expressed Asmentioning

confidence: 99%

“…The paper provides a simple and effective way to determine the geometric parameters of the multi-aperture coupler based on the SIW. In 2020, Xiyao Wang proposes an equivalent transmission line model to analyze the coupling of SIW couplers [15], providing a simple and accurate method to estimate the coupling between two closely spaced SIWs sharing a row of metal cylinders simplifying the design method of SIW couplers. The conventional coupler structure based on SIW is too simple, designers lack design variables to effectively control the coupling coefficient, which has become one of the bottlenecks of SIW coupler design.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and design of weak coupling coupler based on the half mode substrate integrated waveguide

You

Cheng

2023

Int. J. Microw. Wireless Technol.

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Substrate integrated waveguide (SIW) technology represents a good solution for the design of couplers. Coupler structures proposed in most relevant reports cannot achieve excellent performance in the case of weak coupling. This work proposes a new weak coupling coupler architecture, similar to the branch line coupler. The metal via arrays is used to reshape the electric field distribution of the SIW structure, making the overall structure achieve weak coupling characteristics. The even-odd mode decomposition method analyzes this structure's equivalent transmission line model. For this purpose, a systematic design procedure is deployed to achieve several coupling values over a wide frequency bandwidth. A novel half-mode substrate integrated waveguide (HMSIW) coupler with a 29 dB coupling is designed and fabricated for verification based on the proposed method. Good agreements between the calculated and simulated results are observed. The proposed coupler has the advantage of high directivity within the broadband and can be used for SIW-based circuits and power detection in the Ku-band.

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Cascaded Deep Q-Network for Optimization of Substrate Integrated Waveguide Couplers

Cai

Shen

2023

IEEE Trans. Circuits Syst. II

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Coupling Analysis of Adjacent Substrate-Integrated Waveguides Based on the Equivalent Transmission Line Model

Cited by 4 publications

References 20 publications

A simple SIW balanced directional coupler with high common‐mode suppression

A simple SIW balanced directional coupler with high common‐mode suppression

Analysis and design of weak coupling coupler based on the half mode substrate integrated waveguide

Cascaded Deep Q-Network for Optimization of Substrate Integrated Waveguide Couplers

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