Broadband substrate integrated waveguide to rectangular waveguide transition with fin-line

Zhong, Cuilin; Xu, Jun; Zhi, Z.Y.; Jin, C.X.

doi:10.1049/el:20093214

Cited by 25 publications

(14 citation statements)

References 10 publications

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“…There are two main geometrical configurations for RWG-to-SIW transitions, namely the in-line and the right-angle configurations, which differ from one another because of the longitudinal axes of both waveguides being respectively collinear or perpendicular. In-line transitions [4][5][6][7][8][9][10][11] use probes or probes together with waveguide tapers and exhibit wide bandwidths at the expense of bulky volumes, thus making this geometry not suitable when compactness is required. Moreover, in-line transitions are not compatible with subarraying in the specific scenario of antenna arrays based on a tile architecture.…”

Section: Introductionmentioning

confidence: 99%

Broadband Right-Angle Rectangular Waveguide to Substrate Integrated Waveguide Transition with Distributed Impedance Matching Network

2019

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A broadband right-angle rectangular waveguide to substrate integrated waveguide transition for hybrid RWG-SIW (rectangular waveguide–substrate integrated waveguide) feeding networks is presented. The narrower return loss bandwidth issue with respect to in-line configurations is addressed with the introduction of a multi-section matching network consisting of a number of symmetric E-plane irises in the rectangular waveguide section. A hybrid design procedure based on circuit simulation and full-wave optimization is outlined and adopted to synthesize three matching networks with respectively one, two, and three irises, according to the bandwidth to be covered. The design procedure is experimentally validated with a proof-of-concept prototype.

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Section: Introductionmentioning

confidence: 99%

Broadband Right-Angle Rectangular Waveguide to Substrate Integrated Waveguide Transition with Distributed Impedance Matching Network

2019

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“…A favorable fin‐line SIW‐waveguide transition has been investigated in recent years. It shows advantages of broadband bandwidths, low loss, compact structure and ease of integration . For example, the transition with an antipodal fin‐line shows about a 0.8 dB single transition insertion loss and greater than 12 dB return loss for back‐to‐back transitions over 10 GHz bandwidth from 26.5 to 40 GHz.…”

Section: Introductionmentioning

confidence: 99%

Investigations on the rectangular waveguide to SIW transition for terahertz applications

Hao

Wang

2017

Micro & Optical Tech Letters

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In this paper, the performance of a terahertz rectangular waveguide to substrate integrated waveguide (SIW) transition using fin line coupling structure is investigated. Two prototypes working at 140 GHz and 180 GHz frequency bands are both designed, and fabricated by using the low‐cost printed‐circuit‐board (PCB) technology. Full‐wave simulations have been used to synthesize and optimize the transitions. In order to evaluate effectively the insertion loss of the transition, three different lengths of transitions are designed and measured for D‐band and G‐band, respectively. Measurement results show that from 110 GHz to 150 GHz and from 169 GHz to 193 GHz, the average insertion loss of the terahertz transition is around 0.54 dB and 0.89 dB, respectively. And their measured return losses are both larger than 10 dB. This work demonstrates that the investigated SIW to WR6/WR5 waveguide transitions can be used for developing future planar terahertz components by using the low cost PCB process.

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“…It is necessary to obtain a mechanical simplicity, low loss, and broadband transition between SIW and rectangular waveguide. Over the last years, the transitions between SIW and waveguide have been developed extensively, which are realized by radial probe , height‐stepped waveguides , quasi‐Yagi antenna , antipodal fin‐lines , and coupling aperture . In , to achieve a broader bandwidth, the standard rectangular waveguide needs to be modified into height‐tapered or height‐stepped waveguide structures, which are somewhat complex from the mechanical view.…”

Section: Introductionmentioning

confidence: 99%

Low loss and broadband transition between substrate integrated waveguide and rectangular waveguide

Dong

Liu

Lin

et al. 2015

Int J RF and Microwave Comp Aid Eng

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In this article, a novel transition between substrate integrated waveguide (SIW) and rectangular waveguide is proposed. A pair of antipodal tapered probes is developed to convert the E‐field of SIW to that of waveguide, acting as an antipodal dipole antenna to improve the performance of the SIW‐to‐waveguide transition. A back‐to‐back prototype of the proposed transition is fabricated and measured, the results show that the transition achieve a bandwidth of 51.1% from 23.7 to 40 GHz, and a size reduction of 75.3% compared to the SIW‐to‐waveguide transition using antipodal fin‐line. A tolerance analysis is performed via the simulation to verify the reliability of this transition design. For further validation, the antipodal tapered probes are employed for the design of partially filled SIW‐to‐waveguide transition. From its experimental results, it demonstrates that the loss of a single SIW‐to‐waveguide is less than 0.26 dB over the frequency range of 24.9–40 GHz. In addition, such proposed SIW‐to‐waveguide transition is suitable for hermetic packaging due to the inherent property in transition structure. These results show that the proposed transition can offer the advantages of broad bandwidth, low loss, compact size, and stable performance at millimeter‐wave frequencies. © 2015 Wiley Periodicals, Inc. Int J RF and Microwave CAE 26:54–61, 2016.

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Broadband substrate integrated waveguide to rectangular waveguide transition with fin-line

Cited by 25 publications

References 10 publications

Broadband Right-Angle Rectangular Waveguide to Substrate Integrated Waveguide Transition with Distributed Impedance Matching Network

Broadband Right-Angle Rectangular Waveguide to Substrate Integrated Waveguide Transition with Distributed Impedance Matching Network

Investigations on the rectangular waveguide to SIW transition for terahertz applications

Low loss and broadband transition between substrate integrated waveguide and rectangular waveguide

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