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APPLICAZIONI DELLA SPERIMENTAZIONE VIRTUALEELETTROMAGNETISMO Frequency-Reconfigurable Microstrip Antenna for Software-Defined Radio
The increasing demand for portable devices with wireless connectivity within a wide frequency spectrum presents an ambitious challenge for the designer of the RF front-end who has to manage different wireless standards (GSM, UMTS, WiMAX, WiFi, Bluetooth, LTE). Continua ... Research Activities on Slot-Coupled Patch Antenna Excited by a Square Ring Slot
A novel slot-coupling feeding technique for wideband dualpolarized patch antennas is presented. A square patch is fed through a square ring slot excited by two non-overlapping feeding lines printed on the same side of a single-layer substrate. Reflection coefficient, port isolation and radiation patterns are evaluated by numerical simulations with ANSYS Designer. Continua ... Electromagnetic Issues for a IEEE 1902.1 "Rubee" Tag Dipped in a Fiber/Composite Laminate
The IEEE 1902.1 “RuBee” communication standard defines the air interface for radiating transceiver radio tags using long wavelength signals (up to 450 kHz). Conforming devices can have very low power consumption (a few microwatts on average), while operating over medium ranges (0.5 to 30 meters) and at low data transfer speeds (300-9600 bps). Continua ... Design of metamaterial based devices for electromagnetic applications
In the last decade, great attention has been devoted to the study of Metamaterials. The electromagnetic properties of homogeneous materials arise from the microstructure and chemical composition of the material. These properties, generally measured by permittivity and permeability, dictate the response of the material to external electric and magnetic fields, respectively. Continua ...Altri esempi di applicazioni nell'Elettromagnetismo
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