Person: Teberio BerdĂșn, Fernando
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Teberio BerdĂșn
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Fernando
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0000-0002-4603-2273
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Publication Open Access Passive microwave component design using inverse scattering: theory and applications(Hindawi, 2013) Arnedo Gil, Israel; Arregui Padilla, IvĂĄn; Chudzik, Magdalena; Teberio BerdĂșn, Fernando; Lujambio Genua, Aintzane; Benito Pertusa, David; Lopetegui Beregaña, JosĂ© MarĂa; GĂłmez Laso, Miguel Ăngel; IngenierĂa ElĂ©ctrica y ElectrĂłnica; Ingeniaritza Elektrikoa eta ElektronikoaWe briefly review different synthesis techniques for the design of passive microwave components with arbitrary frequency response, developed by our group during the last decade. We provide the theoretical foundations based on inverse scattering and coupledmode theory as well as several applications where the devices designed following those techniques have been successfully tested. The main characteristics of these synthesis methods are as follows. (a) They are direct, because it is not necessary to use lumpedelement circuit models; just the target frequency response is the starting point. (b)They are exact, as there is neither spurious bands nor degradation in the frequency response; hence, there is no bandwidth limitation. (c) They are flexible, because they are valid for any causal, stable, and passive transfer function; only inviolable physical principles must be guaranteed. A myriad of examples has been presented by our group in many different technologies for very relevant applications such as harmonic control of amplifiers, directional couplerwith enhanced directivity and coupling, transmission-type dispersive delay lines for phase engineering, compact design of high-power spurious free low-pass waveguide filters for satellite payloads, pulse shapers for advanced UWB radar and communications and for novel breast cancer detection systems, transmission-type Nth-order differentiators for tunable pulse generation, and a robust filter design tool.Publication Open Access The Canfranc Axion Detection Experiment (CADEx): search for axions at 90 GHz with Kinetic Inductance Detectors(IOP Publishing, 2022) Aja, Beatriz; Arguedas Cuendis, Sergio; Arregui Padilla, IvĂĄn; Artal, Eduardo; Barreiro, R. BelĂ©n; Casas, Francisco J.; Ory, Marina C. de; DĂaz-Morcillo, Alejandro; Fuente, Luisa de la; Gallego, Juan Daniel; GarcĂa-BarcelĂł, JosĂ© MarĂa; Gimeno, Benito; GĂłmez, Alicia; Granados, Daniel; Kavanagh, Bradley J.; GĂłmez Laso, Miguel Ăngel; Lopetegui Beregaña, JosĂ© MarĂa; Lozano-Guerrero, Antonio JosĂ©; Magaz, MarĂa T.; MartĂn-Pintado, JesĂșs; MartĂnez-GonzĂĄlez, Enrique; Miralda-EscudĂ©, Jordi; MonzĂł-Cabrera, Juan; Najarro de la Parra, Francisco; Navarro-Madrid, JosĂ© R.; Nuñez Chico, Ana B.; Pascual, Juan Pablo; Pelegrin, Jorge; Peña Garay, Carlos; RodrĂguez, David; SocuĂ©llamos, Juan M.; Teberio BerdĂșn, Fernando; Teniente Vallinas, Jorge; Vielva, Patricio; Vila, IvĂĄn; Vilar, RocĂo; Villa, Enrique; IngenierĂa ElĂ©ctrica, ElectrĂłnica y de ComunicaciĂłn; Institute of Smart Cities - ISC; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio IngeniaritzarenWe propose a novel experiment, the Canfranc Axion Detection Experiment (CADEx), to probe dark matter axions with masses in the range 330â460 ÎŒeV, within the W-band (80â110 GHz), an unexplored parameter space in the well-motivated dark matter window of Quantum ChromoDynamics (QCD) axions. The experimental design consists of a microwave resonant cavity haloscope in a high static magnetic field coupled to a highly sensitive detecting system based on Kinetic Inductance Detectors via optimized quasi-optics (horns and mirrors). The experiment is in preparation and will be installed in the dilution refrigerator of the Canfranc Underground Laboratory. Sensitivity forecasts for axion detection with CADEx, together with the potential of the experiment to search for dark photons, are presented.Publication Open Access Integrating multiple stubs in stepped-impedance filter aiming for high selectivity(IET, 2022) Sami, Abdul; GĂłmez Laso, Miguel Ăngel; Lopetegui Beregaña, JosĂ© MarĂa; Arnedo Gil, Israel; Calero FernĂĄndez, Ibai; Teberio BerdĂșn, Fernando; MartĂn Iglesias, Petronilo; Benito Pertusa, David; Arregui Padilla, IvĂĄn; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren; Institute of Smart Cities - ISC; IngenierĂa ElĂ©ctrica, ElectrĂłnica y de ComunicaciĂłnA design technique to include multiple and fully-controlled transmission zeros (TZs) in the frequency response of rectangular waveguide commensurate-line stepped-impedance filters is presented in this letter. These bandpass filters (BPFs) are known for having reduced sensitivities against manufacturing inaccuracies and are composed of multiple waveguide sections. In order to improve their selectivity, 3λg/4 and λg/4-stubs are included to create multiple TZs around the passband. The proposed technique allows us to add multiple stubs in a single section and, therefore, only minor adjustments in the affected part of the filter are required, which simplifies the overall design process. The technique has been verified with a design example with four TZs (two on each side) near the passband.Publication Open Access Synthesis of one dimensional electromagnetic bandgap structures with fully controlled parameters(IEEE, 2017) Arnedo Gil, Israel; Chudzik, Magdalena; Percaz Ciriza, Jon Mikel; Arregui Padilla, IvĂĄn; Teberio BerdĂșn, Fernando; Benito Pertusa, David; Lopetegui Beregaña, JosĂ© MarĂa; GĂłmez Laso, Miguel Ăngel; IngenierĂa ElĂ©ctrica y ElectrĂłnica; Ingeniaritza Elektrikoa eta ElektronikoaIn this paper, we propose a novel synthesis strategy for the design of one dimensional electromagnetic bandgap (1- D-EBG) structures where all the performance parameters of these devices can fully be controlled, i.e., the central frequency of the forbidden band, its attenuation level and bandwidth, and the ripple level at the passbands. The novel synthesis strategy employs a new inverse-scattering technique to accurately synthesize the 1-D-EBG structure, targeting a properly interpolated version of a classical periodic filter fulfilling the required frequency specifications. The new inverse-scattering technique follows a continuous layer peeling approach and relies on the coupled-mode theory to precisely model the microwave structures. Telecommunication and radar systems, as well as material characterization devices, will be profited by this proposal with which enhanced filters, sensors, power dividers, couplers, mixers, oscillators, and amplifiers can be designed in many different technologies. As a proof of concept, a 1-D-EBG structure in microstrip technology with a single forbidden band (free of spurious stopband replicas), with attenuation level of 30 dB, fractional bandwidth larger than 100%, and return loss level at the passbands of 20 dB, has been designed and fabricated. The measurements obtained are in very good agreement with the simulations and target specifications, being free of spurious replicas up to the 15th harmonic, showing the robustness and very good performance of the novel design strategy proposed.Publication Open Access Multipactor breakdown analysis of Ku-band meandered low-pass filter(2022) Sami, Abdul; Teberio BerdĂșn, Fernando; Arnedo Gil, Israel; MartĂn Iglesias, Petronilo; Lopetegui Beregaña, JosĂ© MarĂa; GĂłmez Laso, Miguel Ăngel; Arregui Padilla, IvĂĄn; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren; Institute of Smart Cities - ISC; IngenierĂa ElĂ©ctrica, ElectrĂłnica y de ComunicaciĂłnIn this work, a very compact rectangular waveguide low-pass filter with meandered topology based on commensurate lines for Ku-band satellite applications is analysed for high-power handling capabilities. The device consists of rectangular waveguide sections properly cascaded to form a meandered topology to obtain the desired value of the local reflection coefficients. which are essential to achieve the target frequency response and also to keep large mechanical gaps. Hence, this technique allows us not only to design a filter with compact size but a filter geometry which is suitable for high power applications. In the paper, the low-pass filter based on commensurate lines is first designed by cascading E-plane mitered bends (±90° EMBs) in CST Microwave Studio (MWS) and then the values of the electromagnetic fields at the passband frequencies are exported to Spark3D to perform a multipactor analysis. The critical areas inside the device where the multipactor discharge occurs will also be identified in the high-power analysis. https://doi.org/10.5281/zenodo.7343236Publication Open Access Producing and exploiting simultaneously the forward and backward coupling in EBG-assisted microstrip coupled lines(IEEE, 2016) Percaz Ciriza, Jon Mikel; Chudzik, Magdalena; Arnedo Gil, Israel; Arregui Padilla, IvĂĄn; Teberio BerdĂșn, Fernando; GĂłmez Laso, Miguel Ăngel; Lopetegui Beregaña, JosĂ© MarĂa; IngenierĂa ElĂ©ctrica y ElectrĂłnica; Ingeniaritza Elektrikoa eta ElektronikoaIn this paper, a methodology is proposed for the design of EBG-assisted coupled line structures in microstrip technology, controlling independently the forward and backward coupling. It is based on the use of a single-frequency-tuned electromagnetic bandgap (EBG) structure to produce a single backward-coupled frequency band, in combination with the forward-coupled frequency bands produced by the difference between the even and odd mode propagation constants present in microstrip technology. Thus, the central frequency of the backward-coupled band is controlled by the period of the EBG structure, while the frequencies of the forward coupled bands are fixed by the length of the device. The rest of the frequencies go to the direct port giving rise to a device with the input port matched at all the frequencies and where the coupled bands are easily controllable by adjusting the corresponding design parameter. The novel methodology proposed has been successfully demonstrated by designing a triplexer intended for the GSM (900 MHz) and WLAN (2.4 GHz and 5.5 GHz) telecommunication bands.Publication Restricted IdentificaciĂłn de sinusoidales no estacionarias para descomposiciĂłn de audio y detecciĂłn de PItCH(2009) Teberio BerdĂșn, Fernando; Zivanovic, Miroslav; Escuela TĂ©cnica Superior de Ingenieros Industriales y de TelecomunicaciĂłn; Telekomunikazio eta Industria Ingeniarien Goi Mailako Eskola Teknikoa; IngenierĂa ElĂ©ctrica y ElectrĂłnica; Ingeniaritza Elektrikoa eta ElektronikoaPublication Open Access Design procedure for new compact waffle-iron ilters with transmission zeros(IEEE, 2018) Teberio BerdĂșn, Fernando; Percaz Ciriza, Jon Mikel; Arregui Padilla, IvĂĄn; MartĂn Iglesias, Petronilo; Lopetegui Beregaña, JosĂ© MarĂa; GĂłmez Laso, Miguel Ăngel; Arnedo Gil, Israel; IngenierĂa ElĂ©ctrica, ElectrĂłnica y de ComunicaciĂłn; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio IngeniaritzarenIn this paper, a novel waffle-iron filter with transmission zeros at multiple frequencies, along with its design procedure, is presented. The proposed filter features a high-power behavior and a wide rejected band in a single compact structure by means of a set of transmission zeros that can also be placed close to the passband. Its design method rests on a divide-and-rule strategy, where the physical dimensions of the constituent design entities (DEs) can be easily computed in a very short time. A novel high-power compact waffle-iron filter with transmission zeros at multiple frequencies has been designed as well as several classical waffle-iron filters with transmission zeros at one frequency only, using a detailed step-by-step procedure which avoids the bruteforce optimizations needed until now. Multipactor and corona simulations have been conducted proving a high-power handling capability of 1.8 kW and 78.6 W, respectively. A prototype of the novel filter has been fabricated, obtaining a remarkable accordance between the simulated and measured results.Publication Open Access High-power filter design in waveguide technology: future generation of waveguide satellite filters in payloads handling increasing bit rates and numbers of channels(IEEE, 2020) Arregui Padilla, IvĂĄn; Teberio BerdĂșn, Fernando; Arnedo Gil, Israel; Percaz Ciriza, Jon Mikel; MartĂn Iglesias, Petronilo; Lopetegui Beregaña, JosĂ© MarĂa; GĂłmez Laso, Miguel Ăngel; IngenierĂa ElĂ©ctrica, ElectrĂłnica y de ComunicaciĂłn; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio IngeniaritzarenTo design a filter for a particular application, many issues must first be considered. Which technology will be the most convenient? What design technique will provide better results for a particular set of frequency specifications? Once the device has been designed, will it fulfill all of the (not only electrical) requirements? It is not always easy to answer such questions in advance. In this article, we try to shed some light on these questions when our aim is the design of filters for high-power operation.Publication Open Access Metal 3D printing for RF/microwave high-frequency parts(Springer, 2022) MartĂn Iglesias, Petronilo; GĂłmez Laso, Miguel Ăngel; Lopetegui Beregaña, JosĂ© MarĂa; Teberio BerdĂșn, Fernando; Arregui Padilla, IvĂĄn; Marechal, M.; Calves, P.; Hazard, M.; Pambaguian, L.; Brandao, A.; RodrĂguez Castillo, S.; Martin, T.; Percaz Ciriza, Jon Mikel; Iza, V.; MartĂn-Iglesias, Santiago; IngenierĂa ElĂ©ctrica, ElectrĂłnica y de ComunicaciĂłn; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio IngeniaritzarenSpace Systems have been historically characterised by high performance, high reliability and high cost. Every new generation of space systems tends to improve performance, keep as much as possible reliability, speeding the lead time and lower the cost. Aggressive approach is nowadays followed by some of the players of the new space ecosystem where, for instance, reli- ability can be relaxed thanks for the in-orbit redundancy or robustness to failures by having a constellation with a high number of satellites. This push towards the technology and system limit requires to investigate new methods for the manufacturing of RF/Microwave parts. RF devices such as those based on waveguide structures, benefit from an additive manufacturing approach in terms of radio frequency (RF) performance and compactness. However each manufacturing approach comes with specific features and limitations which need to be well understood and, in some cases, even taking advantage of them. This paper provides a short review of some of the RF/Microwave parts already manufactured using this technology. The paper will focus mainly on metal 3D printing parts since this technology is, at the moment, well accepted by the space community.