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Antenna UHF montata sul tetto per autoveicoli
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ISBN10: 3841641954
ISBN13: 9783841641953
Publisher: Edizioni Sapienza
Published: Apr 15 2025
Pages: 52
Weight: 0.18
Height: 0.12 Width: 6.00 Depth: 9.00
Language: Italian
ISBN13: 9783841641953
Publisher: Edizioni Sapienza
Published: Apr 15 2025
Pages: 52
Weight: 0.18
Height: 0.12 Width: 6.00 Depth: 9.00
Language: Italian
I recenti sviluppi nel campo delle antenne si sono concentrati principalmente sulla minimizzazione delle dimensioni dell'antenna senza alcun effetto sulle sue prestazioni. Il lavoro proposto presenta un'antenna UHF (400-520 MHz) a basso profilo polarizzata verticalmente, simile a un monopolo corto, con una struttura compatta e meccanicamente stabile da montare sul tetto di veicoli pesanti come i treni. Può essere impiegata anche con un piano di massa (superficie del tetto/rooftop) in quanto l'antenna per veicoli è considerata vantaggiosa perché la direzione di comunicazione desiderata è per lo più indipendente dall'orientamento del veicolo. È costituita da una dimensione inferiore a λ/32 in altezza e λ/8 in dimensione laterale. La simulazione è stata effettuata utilizzando il programma CST Microwave Studio 2014. L'effetto dei parametri dell'antenna sulla larghezza di banda sarà analizzato. È facilmente incorporabile sul tetto del veicolo con un adeguato incollaggio. Inoltre, l'antenna proposta ha una struttura semplice, un basso profilo, un facile montaggio e una buona larghezza di banda relativa. I risultati della simulazione e della sperimentazione dimostrano che l'antenna presenta un'eccellente corrispondenza di impedenza a 50 Ω ed è quasi omnidirezionale sul piano orizzontale per la maggior parte della larghezza di banda.
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