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Recent Submissions
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Fast modeling of lateral modes in BAW resonators with arbitrary in-plane geometry
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Conference lecture
Restricted access - publisher's policyThe Transmission Line Matrix (TLM) method is used to model and predict lateral spurious resonances in a BAW resonator. The dispersive characteristics of the main propagating mode, which are defined by the stack of materials, ... -
Application of the input-output equivalent sources method for the simulation of nonlinearities in TC-SAW resonators and filters
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Conference report
Open AccessA good understanding of the nonlinearity mechanism in SAW devices is a crucial aspect in the filter stage. Nonlinear intermodulation distortion (IMD) may lead to spurious signals falling into the receiver band and limiting ... -
Updated BVD modeling of AlN-based solidly mounted resonators working at cryogenic and high temperatures: from -160°C up to 130°C
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Conference lecture
Open AccessIn this work we theoretically and experimentally assess the behavior of AlN-based Solidly Mounted Resonators (SMR) at cryogenic and high temperatures. This study can be useful for precise behavior prediction of SMR sensors ... -
RF leakage compensation in wideband envelope tracking power amplifiers for mobile terminals
Conference lecture
Restricted access - publisher's policyThis paper presents a new linearization method to compensate for the unwanted RF leakage that appears at the ouput of envelope tracking modulators (ETMs) when operating envelope tracking (ET) power amplifiers (PAs) with ... -
Method to measure reflection coefficient under CW high-power signals in SAW resonators
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Restricted access - publisher's policyImproving power handling and lifetime are key assets to ensure device performance and reliability. SAW resonators composed by very thin cross-section inter-digital transducer (IDT) structures make difficult to control the ... -
Out of band improved performance into a measured 5G N77 band transversal filter
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Restricted access - publisher's policyTransversal networks for electroacoustic filters had been proposed and manufactured recently. One of the main problems that arose in the first prototype were the spurious modes due to the mirror stack of the Solidly Mounted ... -
Synthesis procedure for ladder acoustic wave filters starting in series resonator
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessThis work provides a new procedure to synthesize acoustic wave ladder filters starting with series resonators. The novelty of this method relies in a new synthesis methodology to extract a series inductance in filter ... -
Transversal filters based on stacked crystal filters with spurious mode suppression
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference lecture
Restricted access - publisher's policyThe transversal filter topology consists of resonators which require both positive and negative coupling to the input/output which typically necessitates the use of a BALUN. In this paper, transversal filters based on ... -
FPGA implementation of memory-based digital predistorters with high-level synthesis
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Restricted access - publisher's policyThis paper presents a scalable look-up table (LUT) architecture for implementing digital predistortion (DPD) linearizers in a field programmable gate array (FPGA) by using the high-level synthesis (HLS) software. This ... -
High temperatures BVD model for AlN-based solidly mounted resonators
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Restricted access - publisher's policyIn this paper we present an updated version of the well-known one dimensional model for Solidly Mounted Resonators (SMRs) based on Aluminum Nitride (AIN) for harsh environments at 2.4 GHz in sensing applications. Our model ... -
Modified Mason’s and BVD models for analysis of spurious modes due to ohmic losses in BAW resonators
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Restricted access - publisher's policyWe study the presence of an additional peak appearing at the series resonance of SMRs due to the resistance of thin metallic electrodes, especially relevant in devices with large area. To properly account for this effect, ... -
Dataset reduction for neural network based digital predistorters under strong nonlinearities
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessThe artificial neural networks (ANN) are gaining momentum in the digital predistorters (DPD) thanks to their inherently good approximation capabilities. Under strong or complex power amplifier nonlinearities, the size of ...
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