High gain directional hybrid dipole antenna array

In this paper, we propose the high gain directional hybrid antenna array for point-to-point WLAN application. This antenna is designed by using combo of 1.25-λ dipole and folded dipole in parallel. The reactance of antennas (1.25-λ dipole and folded dipole) are complementary and obtains good impedance matching in ISM 2.45-GHz band. BTW, the operating band of folded dipole is a little higher than 1.25-λ dipole. This design method can achieve better antenna gain and efficiency compare with general antenna design. For the purpose to enhance the antenna gain, we apply the skill of 1 × 2 array and add reflector behind the radiators. Details of the antenna design and the experimental results are presented.