Low capacity wide-band mobile base station antenna

In most of the crowded cities and with the vast increase of capacity-hungry applications, operators tend to use capacity enhancement techniques such as MIMO, OFDMA etc. Authors' problem is completely different. In several rural areas, the needed capacity is very low and the single base station has a standard capacitance which is considered over sufficient with respect to the required spectrum in these rural areas. The solution to make the best use of such resources is to design a two-sector antenna with a single feed. The proposed antenna covers two areas simultaneously. Thus, the spectrum capability is distributed over two sectors that share the available frequency resources. If the total area is small enough, then the base station power will be saved to the half as well as the number of antennas also reduced to the half. Otherwise, the concept of frequency reuse can be applied with minimum base stations. Authors' antenna is designed over FR-4 substrate with a noticeable reduction in the cost. A very good agreement between the simulated and measured results is noticed.