HPBW control of dipole antenna with frequency selective reflector using different size elements

Abstract

This paper proposes a reflector backed dipole antenna whose reflector is composed of frequency selective reflector (FSR) and the size of the FSR elements aligned in the both side columns is changed. Since the width of the frequency selective reflector, which is composed of an array of the frequency selective elements, is chosen discretely, it is difficult to design an arbitrary beamwidth of the reflector backed antenna because the beamwidth of the reflector backed dipole antenna can be adjusted by the size of the reflector. The proposed antenna configuration can achieve arbitrary beamwidth by using different size of the FSR elements aligned in the both side columns. This paper also shows the condition of the FSR element size aligned in the both side columns to obtain sector radiation pattern. Keywords: base station antenna, mobile communication, frequency selective reflector, reflector backed dipole antenna Classification: Antennas and Propagation 90 IEICE Communications Express, Vol.5, No.3,[90][91][92][93][94] [6] H. So, A. Ando, T. Seki, M. Kawashima, and T. Sugiyama, "Directional multiband antenna employing frequency selective surfaces," Electron. Lett., vol. 49, no. 4, pp. 243-245, 2013. DOI:10.1049/el.2012 H. So, A. Ando, T. Seki, M. Kawashima, and T. Sugiyama, "Multi-band sector antenna with same beamwidth employing multiple woodpile metamaterial reflectors," IEICE Trans. References

Novel Cellular Active Array Antenna System at Base Station for Beyond 4G

“…Reference [9] used simulation and experiments to show that a cylindrical EBG controlled with PIN diodes is able to act as azimuth beam steering. Also, K. Cho, et al demonstrated in their study the beamwidth of a dipole antenna with a frequency selective reflector using dual-frequency band elements [10]. From the abovementioned study examples, FSS and EBG are regarded as the promising technologies for next-generation base station antennas, for which many of the current antenna characteristics are altered.…”