Passive 3-D simulators

Yu, Ming; Panariello, A.; Ismail, M.A.; Zheng, Jingliang

doi:10.1109/mmm.2008.929696

Cited by 9 publications

(5 citation statements)

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“…In addition, for narrowband hardware as filters, the time steps must be very small (so that the representation of the EM field evolution in the structure is accurate), significantly increasing the computational cost. For such cases, frequency domain techniques are normally best-suited [43]. Note also that, in contrast to frequency domain approaches, simulation errors accumulate with time.…”

Section: B Cst-ps Simulation Configuration 1) Field Computationmentioning

confidence: 99%

Multipactor Threshold Estimation Techniques Based on Circuit Models, Electromagnetic Fields, and Particle Simulators

González

Alcaide

Marin³

et al. 2022

IEEE J. Microw.

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Multipactor has become a keylimiting factor of the final performance of satellite communication systems, due to the increase in power levels and/or operating frequency bands. As a result, the critical components of these systems must meet demanding multipactor specifications which should be considered during the design process. This paper describes the different techniques available to predict the multipactor threshold power for radio frequency (RF) and microwave passive hardware under continuous wave (CW) excitation, from cumbersome particle simulations to fast approximate methods based on circuit models. All these techniques have been described and compared together for the first time, including also a detailed description of the configuration issues of commercial particle simulators required to obtain accurate multipactor threshold predictions. The techniques are applied to both wideband and narrowband application examples. The predictions have been compared with measured thresholds of manufactured samples obtained with a novel multipactor test bed, thus allowing to highlight the advantages and limitations of each technique and particle simulator. From this paper, it will be possible to choose the most suitable procedure (and an appropriate simulator, if needed) to obtain multipactor threshold prediction of passive hardware.

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Section: B Cst-ps Simulation Configuration 1) Field Computationmentioning

confidence: 99%

Multipactor Threshold Estimation Techniques Based on Circuit Models, Electromagnetic Fields, and Particle Simulators

González

Alcaide

Marin³

et al. 2022

IEEE J. Microw.

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“…When these cavities are connected with other waveguide and discontinuities, and all of them share the same constant dimension, the component is known as H-plane or E-plane (depending on the constant dimension and nature of the excitation). In those cases, the use of 2D techniques is possible 1 . Otherwise, general components containing bi-dimensional cavities need to be solved by 3D analysis techniques to take into account all the interactions in the structure.…”

Section: State Of the Artmentioning

confidence: 99%

“…Substituting (D.6b) and 1 It is frequent to define the relationship between the magnetic modal vector and the scalar potential as:…”

Section: Elliptical Arcsmentioning

confidence: 99%

“…In a dynamic sector like the microwave industry, first-pass success (i.e. the ability to design, build, tune, and succeed on the first try) is highly sought after in order to reduce costs and improve product time to market [1]. To achieve this goal, research and development of more efficient computer-aided engineering (CAE) tools and advanced design procedures are fundamental.…”

Section: Introductionmentioning

confidence: 99%

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Full-wave characterization of bi-dimensional cavities and its application to the design of waveguide filters and multiplexers

Candau¹

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AgradecimientosA pesar de las dudas iniciales que tenía sobre cual podía ser mi aportación a un mundo tan estudiado como el de los dispositivos de microondas en guía de onda, considero que la decisión de realizar esta tesis ha sido todo un acierto. La colaboración entre la Universidad Politécnica de Valencia y la empresa de base tecnológica Aurorasat ha permitido enfrentarme a problemas de interés científico, pero que a su vez tienen aplicación práctica directa en la industria. Agradezco enormemente a Vicente Boria por haber hecho posible esta colaboración, haberme animado a embarcarme en ella y confiado en que la llevaría a cabo conéxito. Sin su liderazgo y tenacidad, esta tesis no hubiera sido posible.Durante el desarrollo de la misma he tenido la gran suerte de contar con dos valiosos mentores, como son Jordi Gil y Pablo Soto. Para mí han sido toda una referencia tanto profesional como personal. Han sabido orientarme en momentos críticos, y su implicación ha sido total desde el primer momento. Gran parte de lo que he aprendido durante todos estos años sobre electromagnetismo y diseño de componentes de microondas se lo debo a ellos. Sin duda, este trabajo no hubiera tenido la misma calidad sin sus innumerables aportaciones.Por otro lado, también quisiera reconocer la contribución de otras personas por las que tengo gran admiración. A Carlos Vicente, por plantar algunas de las semillas que han dado lugar a esta tesis, así como por las enriquecedoras discusiones que hemos tenido todo este tiempo y el apoyo que me ha brindado. También a Santiago Cogollos, que me introdujo en el mundo BI-RME y la teoría de filtros, y que siempre ha me ha prestado una valiosa ayuda cuando lo he necesitado.Por supuesto, debo agradecer a Marco Gugliemli por permitirme explorar algunas de sus innovadoras ideas sobre filtros HFRW, y a la Prof. Kawthar Zaki por acogerme en su laboratorio de la University of Maryland. Asímismo, a mis compañeros de Aurorasat y el GAM, con los que he compartido muy buenos momentos.Porúltimo, a mi familia por todo su apoyo. Su confianza en mi capacidad para llevar a cabo esta tesis ha sido de gran ayuda para seguir adelante. A mis amigos y brothers, por estar ahí siempre. Y a Ellen, por todos losánimos que me ha dado, en especial a la hora de escribir. ivCon esta tesis se cierra un capítulo de mi vida y se abre uno nuevo. Espero que, sea donde sea, sigamos colaborando durante muchos años. Carlos Carceller AbstractModern communications systems impose stringent requirements on the equipment that operates at microwave frequency, especially in the case of wireless communications. The design of passive components for these applications is contingent upon the availability of accurate electromagnetic (EM) modeling tools that can efficiently handle the complex geometry of these components. Despite the widespread use of mesh-based general-purpose computer-aided engineering (CAE) tools to perform final design verifications, their application during the optimization process is limited. Optimum designs require a large ...

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“…α(ω 0 ) + jβ(ω 0 ), where β (rad/m) is the per unit length phase shift, α (Np/m) is the per unit length attenuation experienced by the wave and ω 0 (rad/s) is the angular frequency of the electromagnetic wave. They are typically obtained using a driven-mode analysis where a finite-sized electromagnetic structure is excited with a frequency ω 0 , and the corresponding phase shift and attenuation are measured [110,111].…”

Section: Numerical Demonstrationmentioning

confidence: 99%

Electromagnetic Modeling of Sub-Wavelength Periodic Structures from Guided-Wave Devices to Metasurface Scatterers

Nizer Rahmeier

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A thesis submitted to the Faculty of Graduate and Postdoctoral Affairs in partial fulfillment of the requirements for the degree of PHILOSOPHIAE DOCTOR, PH. D. (ELECTRICAL AND COMPUTER ENGINEERING) SEPTEMBER 2023 © João Guilherme Nizer Rahmeier, 2023. encouragement have been my driving force. Your belief in me has been a constant source of inspiration, and I am deeply grateful for your presence in my life. To our companion, Max, that kept us happy "passeando no parque" every day (if weather permits)! I am profoundly indebted to my parents, Nubia Cristina Nizer and Dalmir Rubens Rahmeier, who have stood by me since my early years of study as an undergraduate. Your unending support, sacrifices, and belief in my potential have played a pivotal role in shaping my academic journey. Thanks to my brother, Pedro Henrique Nizer Rahmeier, for all the support back home! My thanks go out to my Brazilian friends Carlos and Camila for all their friendship and support and who took care of our beloved Max when my wife and I had to travel abroad, thanks! To my Canadian friends Moh, Joh, Nima, Milad, Titus, and all others who eventually became part of my life for some instant, especially all those volunteering with me in the IEEE Ottawa Young Professional Affinity Group. A special thanks to my colleagues from the research group MARS at Carleton University. Thanks to all my students while TAing for ELEC 2501 and ELEC 2507 every other term during my whole doctorate journey. Thanks to all the professors involved with those courses, especially Prof. Ram Achar, who always supported me when necessary. Thank you all for your camaraderie, intellectual discussions, and collaborative spirit that have enriched my research iii of 162 and life experience immeasurably. A special thanks go to my master's supervisor Dr. Luiz G. Costa Melo, for facilitating and making this Ph.D. possible! Thanks for all the support and guidance over the years! I am truly fortunate to have had the guidance and mentorship of Prof. Dr. Shulabh Gupta, my supervisor, and Prof. Dr. Tom J. Smy, my co-supervisor. Your insights, guidance, and weekly discussions have been instrumental in shaping the direction and depth of my research. Your unwavering availability and dedication have played a significant role in the success of this work. I would also like to express my gratitude to the Faculty of Graduate and Postdoctoral Affairs and the Department of Electronics at Carleton University for the international bursary and the departmental scholarships. Furthermore, I extend my appreciation to the IEEE Antennas and Propagation Society for bestowing upon me the prestigious 2022 IEEE APS Fellowship award. This recognition has not only bolstered my confidence but also affirmed the significance of my research contributions. Furthermore, these opportunities have provided me with the resources and financial support needed to pursue my research goals. In closing, I am humbled by the collective efforts, encouragement, and support that have played a crucial role in the completion of this...

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Passive 3-D simulators

Cited by 9 publications

References 5 publications

Multipactor Threshold Estimation Techniques Based on Circuit Models, Electromagnetic Fields, and Particle Simulators

Multipactor Threshold Estimation Techniques Based on Circuit Models, Electromagnetic Fields, and Particle Simulators

Full-wave characterization of bi-dimensional cavities and its application to the design of waveguide filters and multiplexers

Electromagnetic Modeling of Sub-Wavelength Periodic Structures from Guided-Wave Devices to Metasurface Scatterers

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