Calculation of the Electromagnetic Field in a Strip Line Using FDTD Method

2004 ◽  
Author(s):  
Hideki Matsumura ◽  
Shinichiro Itoh ◽  
Tomonori Hasegawa ◽  
Takashi Iwasaki
Keyword(s):  
Electromagnetic Field ◽  
Fdtd Method ◽  
Strip Line

Distribution of Electromagnetic Field and Energy Flux in the Thin Film Solar Cell with Silver Nano-Disk Array

2013 ◽  
Vol 669 ◽  
pp. 194-203
Author(s):  
Hong Zhou ◽  
Xiao Ping Huang ◽  
Lei Zhong ◽  
Sheng Kang Ji ◽  
Yan Pang ◽  
...  
Keyword(s):  
Thin Film ◽  
Electromagnetic Field ◽  
Solar Cell ◽  
Field Distribution ◽  
Energy Flux ◽  
Thin Film Solar Cell ◽  
Incident Light ◽  
Fdtd Method ◽  
Absorption Enhancement ◽  
Electromagnetic Field Distribution

We simulate and calculate numerically the electromagnetic field and energy flux in single crystal silicon thin film solar cell coated with silver nano-disk square array by using the finite-difference time-domain (FDTD) method. Because of the surface plasmon resonance (SPR) of silver nano array, the electromagnetic field is redistributed and enhanced in the solar cell. The simulation results show that the electromagnetic field distribution and corresponding energy flux component depend on the nano array and the structure of absorbed layer in solar cell. The wavelength of the incident light relative to the nano array determine the profile of the electric field around the nano array. The electromagnetic field distribution in thin film is determined by the internal structure of solar cell. For different incident wavelengths, the electromagnetic field distribution in solar cell will changes. The energy flux named as Poynting vector also changes with the incident wavelength. To investigate the absorption of the solar cell, the normalized absorbed power at different wavelengths is calculated. Based on the SPR effect, the solar cell exhibts absorption enhancement sharply at a certain wavelength.

Research on Interference of Electromagnetic Radiation on Micro-Strip Line

2011 ◽  
Vol 110-116 ◽  
pp. 971-976
Author(s):  
Hong You Wang ◽  
Jin Guang Li
Keyword(s):  
Integrated Circuits ◽  
Time Domain ◽  
Integrated Circuit ◽  
Electromagnetic Compatibility ◽  
Fdtd Method ◽  
Field Calculation ◽  
Strip Line ◽  
The Time Domain ◽  
Radiation Conditions ◽  
Response Feature

Micro-strip line is a kind of transmission line that is the most widely used in microwave integrated circuit. With the development of microwave integrated circuits and the increasing work frequency of the micro-strip line, a higher requirement for its electromagnetic compatibility has been raised. Finite-Difference Time-Domain (FDTD) method has characteristics of good adaptability in the analysis of electromagnetic compatibility issues and superiority in complexity of the structure modeling. For these reasons, this Article uses FDTD method which is widely used in electromagnetic field calculation to analyze the time-domain of micro-strip line, calculates its current and voltage induced in ports and discuss the response feature under different radiation conditions.

scholarly journals Effect of Stripline Number on Resonant Frequency of Hexagonal Split Ring Resonator Metamaterial

2020 ◽  
Vol 9 (1) ◽  
pp. 26-30
Author(s):  
Romi Fadli Syahputra ◽  
Yan Soerbakti ◽  
Riad Syech ◽  
Erman Taer ◽  
Saktioto Saktioto
Keyword(s):  
Electromagnetic Field ◽  
Resonant Frequency ◽  
Ring Resonator ◽  
Negative Refractive Index ◽  
Split Ring Resonator ◽  
Electromagnetic Properties ◽  
Strip Line ◽  
Frequency Range ◽  
Split Ring ◽  
Resonant Frequency Shift

Piranti-piranti elektronik maupun optoelektronik yang efisien dan responsif saat ini tengah masif dikembangkan dalam beragam bentuk dan jenis. Meta-material merupakan rancangan optoelektronik yang unik dengan sifat elektromagnetik yang tidak ditemukan secara alami, salah satunya adalah peristiwa indeks bias negatif. Eksplorasi terhadap banyak ragam struktur metamaterial sangat penting dilakukan untuk mengidentifikasi karakteristik tiap struktur. Salah satu struktur metamaterial yang menarik dikaji adalah bentuk heksagonal. Penelitian ini menginvestigasi karakteristik frekuensi resonan dan distribusi medan elektromagnetik metamaterial split ring resonator heksagonal (SRR-H) yang dikombinasikan dengan stripe line (SL) berupa logam tembaga. Lebih lanjut, jumlah SL divariasikan dari 0 - 5 unit dan disimulasikan dalam medium udara dalam rentang frekuensi 1 – 7,5 GHz. Hasil simulasi menunjukan adanya pergeseran frekuensi resonan untuk tiap penambahan SL dalam rentang frekuensi 4,31 – 5,82 GHz. Sebaran medan listrik cenderung terpusat pada cincin resonator sedangkan medan magnet cenderung terdistribusi pada SL. Desain metamaterial SRR-H dengan 3 SL memberikan respon disipasi energi yang terkecil dengan medan E maksimum 2,59 kV×m-1 dan medan H maksimum 8,69 A×m-1. Desain SRR-H ini cukup potensial untuk diaplikasikan sebagai antena gelombang elektomagnetik yang efisien dan juga sebagai biosensor. Efficient and responsive electronic and optoelectronic devices are currently being massively developed in various forms and types. Metamaterial is a unique optoelectronic design with electromagnetic properties that are not found naturally, one of its properties is a negative refractive index. Exploration of different types of metamaterial structures is very important to identify the characteristics of each structure. One of the interesting metamaterial structures is a hexagonal shape. This research investigates the resonant frequency characteristics and electromagnetic field distribution of split-ring resonator (SRR-H) hexagonal-shaped metamaterial which is combined with the copper stripe line (SL). Furthermore, the number of SL is varied from 0 to 5 units and simulated in the air medium in frequency range of 1 - 7.5 GHz. The simulation results show a resonant frequency shift occurred for each SL combination in the 4.31 - 5.82 GHz frequency range. The distribution of the electric field tends to be concentrated on the resonator while the magnetic field tends to be distributed on the SL. The SRR-H metamaterial with 3 SL provides the smallest energy dissipation response with a maximum E field of 2.59 kV×m-1 and a maximum H field of 8.69 A×m-1. The SRR-H design is potential enough to be applied as an efficient electromagnetic wave antenna and also as a biosensor.Keywords: Metamaterials, SRR-H, strip line, resonant frequency, electromagnetic field

Predicting Multi-Order Magnetic Polaritons Resonance in SiC Slit Arrays by Mutual Inductor–Inductor–Capacitor Circuit Model

2020 ◽  
Vol 142 (7) ◽  
Author(s):  
Yanming Guo ◽  
Bo Xiong ◽  
Yong Shuai
Keyword(s):  
Electromagnetic Field ◽  
Electromagnetic Waves ◽  
Fdtd Method ◽  
Circuit Model ◽  
Radiative Properties ◽  
Field Calculation ◽  
Thermal Radiative Properties ◽  
Resonance Frequencies ◽  
Lc Circuit ◽  
Calculation Results

Abstract Magnetic polariton (MP) that couples electromagnetic waves with magnetic excitation can be predicted by equivalent inductor–capacitor (LC) circuit model. However, when the resonance frequencies of MP and surface phonon polariton (SPhP) is close, the absorption and transmission peaks predicted by LC circuit model are far different from solving electromagnetic field calculation results. In this work, absorption and transmission enhancements with a SiC slit array are theoretically demonstrated within the SiC phonon absorption band with finite difference time-domain (FDTD) method. The interactions between SPhP and MP are confirmed by electromagnetic field distributions. Mutual inductor–inductor–capacitor (MLC) circuit model is used to predict the multiorder MP resonance conditions, and the coupling between MP and SPhP is treated as a mutual inductor in MLC model. The geometric effects of SiC slit arrays are investigated and MLC circuit model works well. This study may contribute to the design and prediction of thermal radiative properties and micro-/nanostructure metamaterials thermal radiative properties database building.

scholarly journals AN EXTENDED FDTD METHOD FOR THE ANALYSIS OF ELECTROMAGNETIC FIELD ROTATORS AND CLOAKING DEVICES

2008 ◽  
Vol 87 ◽  
pp. 183-196 ◽  
Author(s):  
Jorge Andrey Silva-Macêdo ◽  
Murilo Araujo Romero ◽  
Ben-Hur Viana Borges
Keyword(s):  
Electromagnetic Field ◽  
Fdtd Method
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