Compact Horizontally Polarized Dual-Beam Antenna with Large Tilted Beam Angle for FTTR Applications

This paper proposes a horizontally polarized dual-beam antenna with a large tilted beam angle. The antenna consists of a horizontally placed dipole pair, two directors positioned on both sides of the dipole pair, an etched feeding network, and a slotted ground made from a low-cost FR4 substrate. A symmetrical feeding network is employed to provide out-of-phase excitation to the dipole pair, enabling the antenna to achieve a specific dual-beam pattern. Additionally, the directivity is enhanced by the incorporation of directors. The proposed antenna operates within a bandwidth of 5.1 to 6 GHz, with a gain between 7.5 to 8.9 dBi. With its compact size, low cost, high efficiency, and dual-tilted beam feature, the proposed antenna is well-suited for a variety of wireless networks, especially in Fiber-to-the-Room (FTTR) applications.