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Using physics-informed neural networks to solve physical inverse problems is becoming a trend. However, it is difficult to solve the scheme that only introduces physical knowledge through the loss function. Constructing a reasonable loss function to make the results converge becomes a challenge. To address the challenge of physics-informed neural network models for inverse design of electromagnetic devices, a deep physics-informed neural network is introduced by using the mode matching method. The physical equations have been integrated into the network structure when the network is constructed. This feature makes the deep physics-informed neural network have a more concise loss function and higher computational efficiency when solving physical inverse problems. In addition, the training parameters of deep physics-informed neural networks are physically meaningful compared with those of traditional physics-informed neural networks. Users can control the network by parameters more easily. Taking the scattering parameter design of a two-port waveguide for example, we present a new metal topology inverse design scheme and give a detailed explanation. In numerical experiments, we target a set of physically realizable scattering parameters and inversely design the metallic septum by using a deep physics-informed neural network. The results show that the method can not only achieve the design target but also obtain solutions with different topologies. The establishment of multiple solutions is extremely valuable in implementing the inverse design. It can allow the designer to determine the size and location of the design area more freely while achieving the performance requirements. This scheme is expected to promote the application and development of the inverse design of electromagnetic devices.
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Keywords:
- inverse problem /
- inverse design /
- physics-informed neural networks /
- topology optimization
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Google Scholar
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Google Scholar
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Google Scholar
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Google Scholar
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图 5 四频点二端口矩形波导逆设计结果 (a)
$g\left( x \right)$ 分布与二值化结果; (b) 损失函数误差与优化迭代次数关系; (c) 数值仿真测得散射参数Figure 5. Inverse design results of two-port rectangular waveguide targeted at four frequency points: (a) The output
$g\left( x \right)$ of the network and its binarization result; (b) the relationship between the loss function error and the number of optimization iterations; (c) scattering parameters measured by the numerical simulation.图 7 二维膜片逆设计 (a) 设计目标参数获取模型尺寸示意图; (b) DPINN输出
$ \tilde g(x, y) $ ; (c) 二值化后结构尺寸示意图; (d) 数值仿真测得散射参数幅度; (e) 数值仿真测得散射参数实部及虚部Figure 7. Inverse design of two-dimensional iris: (a) Schematic diagram of model size for obtaining design target parameters; (b)
$\tilde g(x, y)$ of the DPINN output; (c) structural dimension diagram after binarization; (d) the amplitudes of the scattering parameters measured by numerical simulation; (e) the real and imaginary parts of the scattering parameters measured by numerical simulation.表 1 逆设计目标S参数
Table 1. Target S parameter of inverse design.
参数项 4 GHz 5 GHz 6 GHz 7 GHz S21实部 0.34244 0.20439 –0.55995 –0.88062 S21虚部 0.11409 –0.65687 –0.59222 0.07926 表 2 网络模型详细参数
Table 2. Detailed parameters of neural network model.
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[1] Carleo G, Cirac I, Cranmer K, Daudet L, Schuld M, Tishby N, Vogt-Maranto L, Zdeborová L 2019 Rev. Mod. Phys. 91 045002
Google Scholar
[2] Kim B, Lee S, Kim J 2020 Sci. Adv. 6 eaax9324
Google Scholar
[3] Li L, Wang L G, Teixeira F L, Liu C, Nehorai A, Cui T J 2018 IEEE Trans. Antennas Propag. 67 1819
Google Scholar
[4] Yang R, Xu X, Li X, Wang L, Pu F 2020 IGARSS 2020-2020 IEEE International Geoscience and Remote Sensing Symposium Waikoloa, HI, USA, September 26–October 2, 2020 pp1743–1746
[5] Shen C, Krenn M, Eppel S, Aspuru-Guzik A 2021 Mach. Learn. -Sci. Technol. 2 03LT02
Google Scholar
[6] Gebauer N W, Gastegger M, Hessmann S S, Müller K R, Schütt K T 2022 Nat. Commun. 13 973
Google Scholar
[7] Xu X, Sun C, Li Y, Zhao J, Han J, Huang W 2021 Opt. Commun. 481 126513
Google Scholar
[8] Liu Z, Zhu D, Rodrigues S, P, Lee K, T, Cai W 2018 Nano Lett. 18 6570
Google Scholar
[9] Kudyshev Z A, Kildishev A V, Shalaev V M, Boltasseva A 2020 Appl. Phys. Rev. 7 021407
Google Scholar
[10] Song Q, Xu F, Zhu X X, Jin Y Q 2021 IEEE Trans. Geosci. Remote Sensing 60 1
Google Scholar
[11] Raissi M, Perdikaris P, Karniadakis G E 2019 J. Comput. Phys. 378 686
Google Scholar
[12] Cai S, Wang Z, Wang S, Perdikaris P, Karniadakis G E 2021 J. Heat Transfer 143 060801
Google Scholar
[13] Mao Z, Jagtap A D, Karniadakis G E 2020 Comput. Meth. Appl. Mech. Eng. 360 112789
Google Scholar
[14] Khan A, Lowther D A 2022 IEEE Trans. Magn. 58 1
Google Scholar
[15] Chen Y, Dal Negro L 2022 APL Photonics 7 010802
Google Scholar
[16] Wang S, Teng Y, Perdikaris P 2021 SIAM J. Sci. Comput. 43 A3055
Google Scholar
[17] Lu L, Pestourie R, Yao W, Wang Z, Verdugo F, Johnson S G 2021 SIAM J. Sci. Comput. 43 B1105
Google Scholar
[18] Rohrhofer F M, Posch S, Geiger B C 2021 arXiv Preprint arXiv: 2105.00862
[19] Yu J, Lu L, Meng X, Karniadakis G E 2022 Comput. Meth. Appl. Mech. Eng. 393 114823
Google Scholar
[20] Daw A, Bu J, Wang S, Perdikaris P, Karpatne A 2022 arXiv Preprint arXiv: 2207.02338
[21] Peng W, Zhou W, Zhang X, Yao W, Liu Z 2022 arXiv Preprint arXiv: 2205.01051
[22] Hu Y, Jin Y, Wu X, Chen J 2021 IEEE Trans. Antennas Propag. 70 767
Google Scholar
[23] Leroy M 1983 IEEE Trans. Antennas Propag. 31 655
Google Scholar
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