Abstract
For any wireless communications antenna system becomes indispensable. In this paper we analyzed linear array, planar array and three - dimensional (3D) array antennas. The array systems are simulated in Matlab based on uniform linear array antennas. Comparisons between planar array antenna and 3D array antenna are provided take into account different phases of currents injected in antenna elements. Also we propose to use the array antenna in WSN due to the advantages in signal to noise ratio and power consumption.
Highlights
A radio antenna, transmitting or receiving, is an independent and yet integral component of any wireless communication system
Since the elements are placed in two dimensions, the array factor of a planar array can be expressed as the multiplication of the array factors of two linear arrays [5]: one along the x-axis and one along the y-axis: AFplanar sin æ çè
Starting from a linear array antennas with logarithmic directivity pattern, composed between 2 – 9 elements that are evenly spaced with the distance of λ/2, we built a planar array and, respectively three – dimensional array antennas
Summary
A radio antenna, transmitting or receiving, is an independent and yet integral component of any wireless communication system. A. Linear Array The array factor (AF) is independent of the antenna type assuming all of the elements are identical. The array factor for a uniformly – spaced N – element linear array from (4) is: AF = éë1 + e j(f2 +kd cosq ) + K + e j éëfN +( N -1)kd cosq ùû ùû (5). A uniform array is defined by uniformly – spaced identical elements of equal magnitude with a linearly progressive phase from element to element:. Inserting this linear phase progression into the formula for the general N – element array, we obtain:.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
