Abstract
It has been discovered that the asymmetrical elements' length of upper and below truncated edges are the new parameter to fulfill the requirement of circular polarization (CP). The proposed antenna has a simple structure, consists of 2 × 2 patch antenna as its radiating elements and a single coaxial connector at the ground layer is used as a feed. The dimension of each patch antenna is 25.65 mm × 25.4 mm × 1.67 mm. Asymmetry truncated edge technique between upper and below patch is used and optimized to produce a circular polarization performance as well as high gain. This antenna is capable to produce a Right-Hand Circular Polarization (RHCP) with an axial ratio of 0.351 dB operated at 2.6 GHz frequency band. The presented antenna successfully reaches 7.510 dB of gain and −31.10 dB of reflection coefficient at the resonant frequency. The antenna design has a big potential for outdoor LTE application used as it improve the coverage robustness capability due to circular polarization characteristics.
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