Teberio BerdĂșn, Fernando
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Teberio BerdĂșn
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Fernando
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IngenierĂa ElĂ©ctrica y ElectrĂłnica
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Publication Open Access Resonant quasi-periodic structure for rectangular waveguide technology with wide stopband and band-pass behavior(EMW Publishing, 2016) Arregui Padilla, IvĂĄn; Teberio BerdĂșn, Fernando; Arnedo Gil, Israel; Percaz Ciriza, Jon Mikel; GĂłmez Torrent, AdriĂĄn; Chudzik, Magdalena; GĂłmez Laso, Miguel Ăngel; Lopetegui Beregaña, JosĂ© MarĂa; IngenierĂa ElĂ©ctrica y ElectrĂłnica; Ingeniaritza Elektrikoa eta ElektronikoaIn this paper, a novel quasi-periodic structure for rectangular waveguide technology is proposed. The constituent unit cells of the structure feature a resonant behavior, providing high attenuation levels in the stopband with a compact (small period) size. By applying a smooth taper-like variation to the height of the periodic structure, very good matching is achieved in the passband while the bandwidth of the stopband is strongly increased. Moreover, by smoothly tapering the width of the structure, a band-pass frequency behavior is obtained. In order to demonstrate the capabilities of the novel quasi-periodic structure proposed, a band-pass structure with good matching, wide rejected band, and high-power handling capability has been designed, fabricated, and measured obtaining very good results.Publication Open Access A novel ku-band circularly-polarized horn antenna based on a ridged wall(IEEE, 2023) Marzo Oyarbide, Andoni; Teberio BerdĂșn, Fernando; Teniente Vallinas, Jorge; IngenierĂa ElĂ©ctrica, ElectrĂłnica y de ComunicaciĂłn; Institute of Smart Cities - ISC; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio IngeniaritzarenIn this paper, a novel wideband (31.5 % bandwidth) circularly-polarized antenna based on a ridged wall is presented. A pair of ridges on the inner wall of the horn serves as an inbuilt polarizer, which can generate left-hand or right-hand circular polarization without any additional polarizer. The ridged wall is placed at 45° with respect to the input port linearly polarized wave to generate a 90° phase delay and obtain the desired circular polarization at the aperture. The simulated results show that the antenna works great in the whole Ku satellite band (from 10.7 to 14.7 GHz) with more than 20 dB return loss and below 1 dB axial ratio. The antenna can be fabricated using traditional computer numerical control machining techniques or the new 3D metal additive manufacturing processes.Publication 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 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.; NĂșñez 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 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 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 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 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 FernaÌndez, 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 Compact harmonic rejection filter for C-band high-power satellite applications(IEEE, 2020) Teberio BerdĂșn, Fernando; MartĂn Iglesias, Petronilo; Arregui Padilla, IvĂĄn; Arnedo Gil, Israel; Lopetegui Beregaña, JosĂ© MarĂa; GĂłmez Laso, Miguel Ăngel; IngenierĂa ElĂ©ctrica, ElectrĂłnica y de ComunicaciĂłn; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio IngeniaritzarenA compact high-power low-pass filter for C-band broadband satellite applications is presented in this paper. The filter is composed of three different sections. A 9th-order compact high-power multi-ridge structure achieves the fundamental mode stopband and the suppression of all-higher order modes. The required slope between the pass- and the stopband is accomplished by means of two step-shaped bandstop elements separated by very short waveguide sections. The passband of the filter is achieved through two compact matching networks. The filter is only 164-mm long, has less than 0.05 dB of insertion loss, handles 9.6 kW (single-carrier multipactor analysis), and has a very wide stopband (up to Ku-band). A dramatic size reduction has been achieved with respect to other commercially available solutions.