Impedance value for array element termination, specified as a scalar. The impedance value terminates other antenna elements of an array while calculating the embedded pattern of the antenna connected to the voltage source. Note Use this property to calculate the embedded pattern of an array. Example...
This configuration also produces a highly directional bidirectional radiation pattern, but instead of its axis being perpendicular to the plane of the array its in the plane of the array. If more than two dipoles are added to the array and the space between them is properly decreased, you can...
The synthesis of conformal antenna arrays is complicated by the impossibility factorizing the analytical expression for the power pattern into an element factor and an array factor. This article describes a general method of pattern synthesis that, given a well-defined single-element power pattern, ...
The study and analysis of various parameters can result in improvements and optimizations in the radiation pattern of antenna structures. In Safar et al. [26] proposed a hemispherical antenna array system for non-invasive brain stimulation. This system consists of 299 elements that are adjusted to...
Visualize the pattern for the linear array in 3-D space at the design frequency. Get pattern3Dfig = figure; pattern(dipole_array,freq) Plot 2-D Radiation Pattern The 3-D pattern of the array shows the maximum of the beam at an azimuthal angle of 90 deg. Plot the 2-D radiation patt...
Equivalent circuit lumped element model of the proposed antenna array. Full size image Radiation characteristics The simulated radiation pattern of the single antenna in the array using CST Microwave Studio is shown in Fig. 9. The broadside antenna is highly directional. Photograph of the measurement...
Visualize the conformal array. Get show(c) Plot the S-parameters of this array in the 900 MHz to 1.1 GHz range. Get s = sparameters(c,f); figure rfplot(s,{[1,1];[2,2];[3,3];[4,4]}); Plot the radiation pattern of this array at 1 GHz. Get pattern(c,f(11)) Circu...
An array antenna is a directive antenna composed of individual elements that can adjust its radiation pattern by controlling the amplitude and phase of currents at each element. The beam of an array antenna can be scanned by changing the relative phase shift between elements. ...
This paper presents a low-profile reconfigurable antenna array capable of five radiation-pattern modes for vehicular communication applications. The antenna array consists of four antenna elements, each containing four square patches. Exciting one of the square patches generates a broadside radiation. A ...
the antenna array has zero output power, no matter how much power is in the incident plane wave. In this manner, a directional radiation pattern is obtained even though the antennas were assumed to be isotropic. Even though this was shown for receiving antennas, due toreciprocity, the transmit...