MODELING AND ANALYS IS OF OMEGA ANTENNA FOR VHF BAND COMMUNICATION

Autor/autori: Eng. Gheorghe SAUCIUC

Rezumat: Un rol important in domeniul comunicatiilor VHF il au repetoarele de semnal. Aceste dispozitive permit realizarea unor comunicatii la distante mari caracterizate de un raport semnal/zgomot mare. In aceasta lucrare mi-am propus sa realizez o antena verticala “omega”pentru banda de 2 m care sa fie utilizata in componenta unui repetor digital. Am testat performantele acesteia, cunoscut fiind faptul ca o antena cu un castig ridicat are avantajul sensibilitatii pentru semnalele provenite de la transceiverele portabile sau mobile de putere mica.

Cuvinte cheie: parametrii antenei, coeficient de unde stationare SWR, caracteristica de directivitate,digipeater


Abstract: An important role in VHF communications, it have signal repeaters. These devices allow for long distance communications, characterized by a high signal / noise. In this paper I wanted to achieve a vertical antenna "Omega" for the band of 2 m, which is used in the composition of a repeater. I tested its performance, knowing that a high gain antenna has the advantage of sensitivity to signals from mobile or portable transceiver for low power

Keywords: antenna parameters, antenna gain, SWR, directivity characteristics, digipeater

 

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