Microstrip/Slotline-Coupling Substrate Integrated Waveguide Power Divider With High Output Isolation

Song, Kaijun; Xia, Fei; Zhou, Yedi; Guo, Song; Yang, Fan

doi:10.1109/lmwc.2018.2888943

Cited by 28 publications

(15 citation statements)

References 8 publications

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“…[4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] Among them, wide bandwidths can be achieved by introducing multimode resonators, [4][5][6][7][8][9][10] cascaded parallel-coupled lines, [11][12][13] transversal signal interference sections, 14 and open-/short-circuited stubs. [15][16][17][18] In addition, many other novel techniques and methods have been used in FPD designs, such as the substrate integrated waveguide, 19,20 the substrate integrated defected ground structure 21 and multi-layer substrate integrated suspended line. 22 In order to improve the bandpass and out-of-band rejection, stepped-impedance-line resonators 23 and open-ended microstrip lines 24 are also used.…”

Section: Introductionmentioning

confidence: 99%

Wideband and compact filtering power divider based on vertically installed planar structures

Liu

Chen²,

Wang

et al. 2022

Int J RF Mic Comp-Aid Eng

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In this article, a wideband filtering power divider using vertically installed planar (VIP) circuit is proposed, where three-line coupled structures are introduced to realize filtering responses. The even-odd mode analysis method is applied to assess the electrical performance of the whole structure. The simulated and measured results demonstrate that the proposed design has a wide operation bandwidth (>103%), low insertion loss (<0.6 dB) and good isolation (>15.2 dB). Moreover, the amplitude imbalance and phase imbalance are less than 0.2 dB and 0.5 , respectively.filtering power divider, vertically installed planar (VIP) circuit, wideband

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Section: Introductionmentioning

confidence: 99%

Wideband and compact filtering power divider based on vertically installed planar structures

Liu

Chen²,

Wang

et al. 2022

Int J RF Mic Comp-Aid Eng

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show abstract

“…Power divider plays an indispensable role in circuits such as array antenna, mixer, and power combining system. [1][2][3][4][5][6][7][8][9][10] The research on power dividers mainly focused on low insertion loss (IL), high isolation, miniaturization, and broadband. The power divider can be divided into planar power divider and nonplanar power divider.…”

Section: Introductionmentioning

confidence: 99%

“…Power divider plays an indispensable role in circuits such as array antenna, mixer, and power combining system 1–10 . The research on power dividers mainly focused on low insertion loss (IL), high isolation, miniaturization, and broadband.…”

Section: Introductionmentioning

confidence: 99%

Low‐insertion‐loss planar four‐way Gysel power divider with high isolation employing two‐layer substrates

Song

Chen

et al. 2022

Micro & Optical Tech Letters

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This paper presents a kind of novel planar four-way Gysel power divider that has high isolation and low insertion loss (IL). This power divider adopts twolayer substrates. The power divider circuit and isolation circuit are on different layers. For analysis and design, an equivalent circuit is given. The relationship between the impedance of the matching section and the working bandwidth is analyzed. The design process is given to illustrate a specific method that also applies to the N-way Gysel power divider. For verification, a prototype is designed, manufactured. The measured results show that IL is 6.3 ± 0.1 dB approximately. The 20 dB relative isolation bandwidth achieves 45%. Between 1.88 and 2.64 GHz, the input return loss (RL) achieves 15 dB. And between 1.78 and 2.75 GHz, the output RL is better than 15 dB.

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“…It can be used to design waveguide-type devices such as antennas, 6 filters, 7 and power dividers. 8 Generally, the electromagnetic full-wave simulation and optimizations of a SIW filter cost a whole day or even a few days, which is much longer than the analysis time of a rectangular waveguide filter. Therefore, it is necessary for us to find a simple and time-saving design method of the SIW filter.…”

Section: Introductionmentioning

confidence: 99%

Neural network of calibrated coarse model and application to substrate integrated waveguide filter design

Jin

2020

Int J RF Microw Comput Aided Eng

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In this article, we propose a novel neural network of calibrated coarse model, which can obtain the optimal filter response with as little training data as possible to synthesize the entire substrate integrated waveguide (SIW) filter. By incorporating the knowledge of filter decomposition with the inverse neural network, we build a coarse model that can synthesize the dimensions of a SIW filter. However, the SIW structures are subject to a potential leakage problem due to the periodic gaps, the results of the coarse model are very different from the ideal response. We propose a novel calibrated neural network from the perspective of the coupling matrix to correct the errors generated in the coarse model. In addition, this article also proposes an equivalent de‐embedding technique, which is simpler than the thru‐reflect‐line calibration technique to accurately extract the scattering parameters of the SIW discontinuities. An H‐plane fifth order SIW filter is synthesized by the proposed model. The result shows that the SIW filter that is very close to the ideal response can be synthesized with only a few hundred training data.

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Microstrip/Slotline-Coupling Substrate Integrated Waveguide Power Divider With High Output Isolation

Cited by 28 publications

References 8 publications

Wideband and compact filtering power divider based on vertically installed planar structures

Wideband and compact filtering power divider based on vertically installed planar structures

Low‐insertion‐loss planar four‐way Gysel power divider with high isolation employing two‐layer substrates

Neural network of calibrated coarse model and application to substrate integrated waveguide filter design

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