Hamed mojahed - Electrical department Islamic azad university Kermanshah branch, Kermanshah, Iran
Seyed vahab al-din makki - Electrical department Razi universit, Kermanshah, Iran
Firouz mohsenifard - Electrical Department Islamic Azad University khormooj Branch. Boushehr, iran

In this paper, the wire helix antenna with a new structure has been designed and simulated. We used two similar helix antenna that connected to each other as an array antenna with 2 arrays only. The length of this antenna in relation to wave length is very small, in addition to this antenna have a high radiationresistance and low imaginary resistance. Also the antenna dimension gets better for having a high efficiency and the most bandwidth in 260 MHz to 280 MHz frequencies. For simulating this antenna we use the S-NEC software that is one of a specific for antenna design and simulation

Helix antenna; Radiation impedance; Imaginary impedance; S-NEC