Browsing by UPNA Author "Lopetegui Beregaña, José María"
Now showing items 1-17 of 17
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Chirping techniques to maximize the power-handling capability of harmonic waveguide low-pass filters
A novel chirping technique is applied to the design of very high-power waveguide harmonic low-pass filters. The technique could be used, for instance, to avoid multipactor testing in multicarrier systems such as the ... -
Compact harmonic rejection filter for C-band high-power satellite applications
A 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 ... -
Design procedure for new compact waffle-iron ilters with transmission zeros
In 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 ... -
Frequency responses and synthesis methods for advanced microwave applications
En esta tesis, se han propuesto unmétodo de aproximación basado en técnicas de diseño de filtros digitales y una técnica de síntesis directa basada en scattering inverso, para proporcionar flexibilidad al proceso de ... -
General synthesis of tapered matching sections for single mode operation using the coupled-mode theory
In this paper, a novel and general method to synthetize microwave waveguide tapers intended for single mode operation is proposed. The technique is based on the use of an exact series solution of the inverse scattering ... -
High-frequency passive components and filters for future high-capacity space and ground communication systems in a hyper-connected world
(2023) Tesis doctoral / Doktoretza tesiaThis Ph.D. thesis presents the design and fabrication of microwave filters in microstrip and coaxial technologies. The filters are designed using a novel synthesis technique based on coupled mode theory and inverse scattering ... -
High-power filter design in waveguide technology: future generation of waveguide satellite filters in payloads handling increasing bit rates and numbers of channels
To 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 ... -
New design techniques for telecommunication payloads of space systems suitable for additive manufacturing in the context of large platforms
(2023) Tesis doctoral / Doktoretza tesiaIn this thesis, microwave filters capable of handling high-power designed using novel synthesis method based on coupled-mode theory and inverse scattering technique and fabricated using metal additive manufacturing (AM) ... -
New filter design methods and topologies for the future microwave and millimeter-wave high-capacity satellites
In this thesis, several novel design techniques for waveguide low-pass filters (LPFs) and band-pass filters (BPFs) are proposed. Firstly, a quasi-analytical technique for classical corrugated waveguide LPFs is presented. ... -
Passive microwave component design using inverse scattering: theory and applications
We 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 ... -
Producing and exploiting simultaneously the forward and backward coupling in EBG-assisted microstrip coupled lines
In 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 ... -
Rectangular waveguide filters with meandered topology
In this paper, a new topology for rectangular waveguide bandpass and low-pass filters is presented. A simple, accurate, and robust design technique for these novel meandered waveguide filters is provided. The proposed ... -
Resonant quasi-periodic structure for rectangular waveguide technology with wide stopband and band-pass behavior
In 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 ... -
Robust tolerance design of bandpass filter with improved frequency response for Q-band satellite applications
A rectangular waveguide bandpass filter for Q-band with simple fabrication is proposed in this letter. The design is based on the use of the first passband replica of commensurate-line stepped-impedance structures and ... -
Routing with classical corrugated waveguide low-pass filters with embedded bends
A very simple design method to embed routing capabilities in classical corrugated filters is presented in this paper. The method is based on the calculation of the heights and lengths of the so-called filters design ... -
Synthesis of high-performance smooth-profiled tapers and filters in microstrip and rectangular waveguide technologies
En esta tesis, los fundamentos teóricos y la formulación de la Teoría de Acoplo de Modos para el análisis y el modelado electromagnético de guías de onda no uniformes son utilizadas para desarrollar diferentes técnicas de ... -
Synthesis of one dimensional electromagnetic bandgap structures with fully controlled parameters
In 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., ...