- 标题
- 摘要
- 关键词
- 实验方案
- 产品
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[IEEE 2019 International Ural Conference on Electrical Power Engineering (UralCon) - Chelyabinsk, Russia (2019.10.1-2019.10.3)] 2019 International Ural Conference on Electrical Power Engineering (UralCon) - Fiber-Optical Sensor with an Acousto-Optical Filter for Monitoring the Status of Overhead Power Lines
摘要： This paper proposes an advanced technique to develop combined neural network and pole-residue-based transfer function models for parametric modeling of electromagnetic (EM) behavior of microwave components. In this technique, neural networks are trained to learn the relationship between pole/residues of the transfer functions and geometrical parameters. The order of the pole-residue transfer function may vary over different regions of geometrical parameters. We develop a pole-residue tracking technique to solve this order-changing problem. After the proposed modeling process, the trained model can be used to provide accurate and fast prediction of the EM behavior of microwave components with geometrical parameters as variables. The proposed method can obtain better accuracy in challenging applications involving high dimension of geometrical parameter space and large geometrical variations, compared with conventional modeling methods. The proposed technique is effective and robust especially in solving high-order problems. This technique is illustrated by three examples of EM parametric modeling.
关键词： order-changing,pole-residue-based transfer functions,microwave components,Electromagnetic modeling,neural networks
更新于2025-09-19 17:13:59
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[IEEE 2019 Thirteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) - Rome, Italy (2019.9.16-2019.9.21)] 2019 Thirteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) - Diplexer Based on Surface Plasmon Polariton-like Propagation Induced by Structural Dispersion of Substrate Integrated Waveguide
摘要： In this paper we propose a novel diplexer based on surface plasmon polariton (SPP) like propagation in substrate integrated waveguide (SIW). The diplexer consists of two two-layer SIW filters, where layers are designed to have effective permittivities of opposite signs in a certain frequency ranges, thus providing SPP-like propagation, and consequently passbands and stopbands in the desired frequency ranges. The diplexer is designed to operate at 2.4/2.6 GHz, and it is characterized by high performance, low-profile and low-cost structure.
关键词： microwave components,SPP-like propagation,substrate integrated waveguide,diplexer,surface plasmon polariton
更新于2025-09-16 10:30:52
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[IEEE 2019 49th European Microwave Conference (EuMC) - Paris, France (2019.10.1-2019.10.3)] 2019 49th European Microwave Conference (EuMC) - Optimizing the Conductivity of Ink-Jet Printed Microwave Components on Polymer Substrates by Laser Sintering
摘要： In this work, microwave components were printed on a Kapton (polyimide) substrate using a Drop-On-Demand (DOD) ink jet printer with silver nanoparticle ink. Two different laser curing strategies are presented by implementing selective sintering. The measured improvement of the achieved conductivity is between 70 and 100% for such resonators from 5 to 15 GHz.
关键词： Kapton (PI),Electrical conductivity,Polymer substrates,laser sintering,Microwave components,Inkjet printing
更新于2025-09-16 10:30:52
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Bending Limit Tests for Ultra-Thin Liquid Crystal Polymer Substrate Based on Flexible Microwave Components
摘要： In this paper, bending limit tests for one ultra-thin liquid crystal polymer (LCP) substrate (Rogers 3850) based on the mechanical properties of ?exible microwave microstrip components are presented. First, a set of 50 ? microstrip lines, a band-pass ?lter, and a stepped impedance ?lter in X-band, are designed by using double clapped LCPs with 50 μm thickness of substrate and 18 μm thickness of copper, which is fabricated by conventional photolithography. Then, the limit tests of the ?exibility of the LCP microwave microstrip components are presented, and the range of the bending limit radius, from 1 mm to 0.75 mm, is demonstrated from the testing results. It is found that the cause for component failure is fracture of the copper (18 μm thickness) laminate, according to the bending limit test experiments. Finally, the analysis of the reasons for the collapse of the microwave components, under bending situations, is explored. The results from this work would be useful for further designs of the ?exible microwave devices and systems on LCP substrates, with compact sizes and good performance.
关键词： microwave components,?exible ?lters,bending limit test,bending effect,LCP substrate
更新于2025-09-10 09:29:36
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[IEEE 2018 19th International Conference on Electronic Packaging Technology (ICEPT) - Shanghai (2018.8.8-2018.8.11)] 2018 19th International Conference on Electronic Packaging Technology (ICEPT) - Optimization of Gold Wire Bonding Process for Microwave Components by DOE Method
摘要： In this paper, the gold wire bonding process of microwave components was studied by design of experimental (DOE) method, and the multiple linear regression equation of the pulling force corresponding with bonding parameters was obtained through the analysis of variance (ANOVA). Results showed that the degree of experimental factors influence on the pulling force was as follows: bonding power>bonding temperature>bonding pressure>ultrasonic time>deformation. Additionally, the initial optimized parameter combination was got: the bonding temperature was 130 °C, the bonding pressure was 25 cN, the bonding power was 0.50 W, the ultrasonic time is 60 ms, and the deformation was 60%. The pulling force of wire bonding can be controlled in the range of 10.0 to 10.5 gf by the optimized combination of bonding parameters.
关键词： bonding power,pulling force,gold wire bonding,Microwave components,DOE,Regression fitting
更新于2025-09-09 09:28:46
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GENERATION, APPLICATION AND ANALYSIS OF A NOVEL FAMILY OF M-SEGMENT QUADRATIC FRACTAL CURVES TO ANTENNAS
摘要： A novel family of fractal curves is proposed which provides the designer a systematic way of miniaturizing the microwave components with the freedom of choosing among form factor, design complexity and achieved miniaturization. The proposed fractal curve is characterized by two integer values m and n. The m value determines the form factor of the fractal while n value governs the iteration number. The equations governing the geometry of fractals are also presented. The proposed fractal is characterized for miniaturization by designing a printed monopole antenna for various values of m and n. The results from the full wave simulations and experiments are analysed and explained. The effect of fractal on reducing the resonant frequency is quantified by an equation based on its physical interpretation. Based on this analysis, saturation point for miniaturization is established. The curves being symmetric around a straight line, distortionless radiation patterns are seen.
关键词： fractal curves,microwave components,resonant frequency,monopole antenna,miniaturization
更新于2025-09-09 09:28:46