Grey Box Non-Linearities Modeling and Characterization of a BandPass BAW Filter

In this work, the non-linearities of a 3G/UMTS geared BandPass Bulk Acoustic Wave ladder filter composed of five resonators were modeled using non-linear modified Butterworth-Van Dyke model. The non-linear characteristics were measured and simulated, and they were compared and found to be fairly identical. The filter's central frequency is 2.12 GHz, the corresponding bandwidth is 61.55 MHz, and the quality factor is 34.55

Grey Box Non-Linearities Modeling and Characterization of a BandPass BAW Filter

In this work, the non-linearities of a 3G/UMTS geared BandPass Bulk Acoustic Wave ladder filter composed of five resonators were modeled using non-linear modified Butterworth-Van Dyke model. The non-linear characteristics were measured and simulated, and they were compared and found to be fairly identical. The filter's central frequency is 2.12 GHz, the corresponding bandwidth is 61.55 MHz, and the quality factor is 34.55

Design of Frequency-Reconfigurable Triband Dipole Antenna Using Capacitive Loading

International audienceIn this work, a novel frequency-reconfigurable printed dipole antenna is reported. By embedding a capacitor in the capacitively loaded loop (CLL), we can easily generate and control an additional resonant frequency F3 besides the main resonant frequency of the basic dipole antenna F1= 2.3GHz (LTE band) and the CLL element F2 = 1.51GHz (GPS band). The proposed antenna achieves a frequency reconfigurable band with tuning range from 1.7 to 2.03 GHz (AWS, DCS and UMTS bands) when varying the capacitance values from 2 to 8pF with good gain and efficiency. The presented antenna has a compact size of 40 × 70 mm2. The proposed design is validated by simulations, displaying good results of impedance mismatch, gain pattern and radiation efficiency. The reconfigurability, range tuning and compact size makes the presented antenna well suitable for the future 5G systems to achieve dynamic spectrum access and deal with the spectrum shortage problem. © 2020 IEEE

Design of a novel Comact ans Superdirective Two and Three Elements Antenna Array

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Antenne Dipôle Multi-bandes Inspirée des Métamatériaux

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Design of a Multi-Band Metamaterial-Inspired Dipole Antenna with Director Element

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