Search Results - "Lopetegi, Txema"
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Novel Design Method for Millimeter-Wave Gap Waveguide Low-Pass Filters Using Advanced Manufacturing Techniques
Published in IEEE access (2023)“…In this paper, a groove gap waveguide (GGW) low-pass filter is proposed for the first time. Gap waveguide technology represents an interesting alternative as a…”
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2
Integrating multiple stubs in stepped‐impedance filter aiming for high selectivity
Published in Electronics letters (01-07-2022)“…A design technique to include multiple and fully‐controlled transmission zeros (TZs) in the frequency response of rectangular waveguide commensurate‐line…”
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3
Design of an Additively-Manufactured Self-Supported All-Metal Coaxial-Line X-Band Bandpass Filter
Published in IEEE access (2024)“…In this contribution, the design and manufacturing of an all-metal coaxial-line X-band bandpass filter is discussed. The device is 3D-printed as a…”
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4
Passive Microwave Component Design Using Inverse Scattering : Theory and Applications
Published in International journal of antennas and propagation (01-01-2013)“…We briefly review different synthesis techniques for the design of passive microwave components with arbitrary frequency response, developed by our group…”
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5
W-Band Filtering Antenna Based on a Slot Array and Stacked Coupled Resonators Using Gap Waveguide Technology
Published in IEEE antennas and wireless propagation letters (01-08-2024)“…This letter proposes a new design approach for filtering antennas. The novel matching reflection coefficient-based method allows the integration of filters and…”
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6
Synthesis of Rectangular Waveguide Filters With Smooth Profile Oriented to Direct Metal Additive Manufacturing
Published in IEEE transactions on microwave theory and techniques (01-07-2023)“…In this article, a novel design method for rectangular waveguide filters intended for fabrication using direct metal additive manufacturing (AM) is proposed…”
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7
Rectangular Waveguide Filters With Meandered Topology
Published in IEEE transactions on microwave theory and techniques (01-08-2018)“…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…”
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8
General Synthesis of Tapered Matching Sections for Single-Mode Operation Using the Coupled-Mode Theory
Published in IEEE transactions on microwave theory and techniques (01-09-2019)“…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…”
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9
Robust Design of 3D-Printed W-Band Bandpass Filters Using Gap Waveguide Technology
Published in Journal of infrared, millimeter and terahertz waves (01-02-2023)“…In this paper, a W-band 3D-printed bandpass filter is proposed. The use of higher-order TE 10 n modes in groove gap waveguide (GGW) technology is evaluated in…”
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10
Design Procedure for New Compact Waffle-Iron Filters With Transmission Zeros
Published in IEEE transactions on microwave theory and techniques (01-12-2018)“…In this paper, a novel waffle-iron filter with transmission zeros at multiple frequencies, along with its design procedure, is presented. The proposed filter…”
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11
Synthesis of One Dimensional Electromagnetic Bandgap Structures with Fully Controlled Parameters
Published in IEEE transactions on microwave theory and techniques (01-09-2017)“…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…”
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12
Chirping Techniques to Maximize the Power-Handling Capability of Harmonic Waveguide Low-Pass Filters
Published in IEEE transactions on microwave theory and techniques (01-09-2016)“…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…”
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13
Producing and Exploiting Simultaneously the Forward and Backward Coupling in EBG-Assisted Microstrip Coupled Lines
Published in IEEE antennas and wireless propagation letters (2016)“…In this letter, a methodology is proposed for the design of electromagnetic band-gap (EBG)-assisted coupled-line structures in microstrip technology,…”
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14
Microwave filters with improved stopband based on sub-wavelength resonators
Published in IEEE transactions on microwave theory and techniques (01-06-2005)“…The main aim of this paper is to demonstrate the potentiality of sub-wavelength resonators, namely, split-ring resonators, complementary split-ring resonators,…”
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Journal Article Conference Proceeding -
15
Stepped-Impedance Band-Pass Filters with Improved Selectivity
Published in 2019 IEEE MTT-S International Microwave Symposium (IMS) (01-06-2019)“…Rectangular waveguide stepped-impedance structures have been recently proposed to achieve band-pass filters with reduced sensitivity to fabrication tolerances…”
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Conference Proceeding -
16
Spurious passband suppression in microstrip coupled line band pass filters by means of split ring resonators
Published in IEEE microwave and wireless components letters (01-09-2004)“…In this letter, spurious passband suppression in microstrip coupled line band pass filters by means of split ring resonators (SRRs) is demonstrated for the…”
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17
Design of Transmission-Type Nth-Order Differentiators in Planar Microwave Technology
Published in IEEE transactions on microwave theory and techniques (01-11-2012)“…In this paper, we propose and demonstrate a new technique for the design of arbitrary-order differentiators, intended for ultra-wideband (UWB) applications in…”
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18
Design of Transmission-Type N th-Order Differentiators in Planar Microwave Technology
Published in IEEE transactions on microwave theory and techniques (01-11-2012)Get full text
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19
Equivalent-circuit models for split-ring resonators and complementary split-ring resonators coupled to planar transmission lines
Published in IEEE transactions on microwave theory and techniques (01-04-2005)“…In this paper, a new approach for the development of planar metamaterial structures is developed. For this purpose, split-ring resonators (SRRs) and…”
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Journal Article -
20
Synthesis of Microwave Filters by Inverse Scattering Using a Closed-Form Expression Valid for Rational Frequency Responses
Published in IEEE transactions on microwave theory and techniques (01-05-2012)“…In this paper, a novel technique to synthesize microwave filters by inverse scattering is proposed. It provides an exact solution for the synthesis problem, by…”
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