Four-Channel Antenna Array with an Octave Bandwidth

The paper addresses the current task of numerical electromagnetic modeling of a four-channel antenna array with an octave frequency band. Additionally, the following frequency characteristics are presented and described: VSWR plot, inter-channel isolation of the antenna array, reflection coefficient, 3D radiation pattern, and the dependence of the gain on the angles $\varphi$ and $\theta$ at low, medium, and high frequencies. 3D radiation pattern is shown at the lower medium and high frequencies. The gain coefficient in the operating frequency range is at least 6.1dB. In the operating frequency range, the VSWR value does not exceed 2.55. The isolation between the antenna channels takes a value from -24dB to -61dB. The dependence of the four channels of the antenna array emitters on the lower, medium and high frequencies ranges from 32° to 58° at $\varphi=0^{\circ}-90^{\circ}$.