Optimum Design of Low-Cost Dual-Mode Beam-Steerable Arrays for Customer-Premises Equipment Applications

IEEE Access

Wan Wan¹  Wen Geyi¹  Steven Gao² 

[1] Nanjing University of Information Science and Technology, Nanjing, China;School of Engineering and Digital Arts, University of Kent, Canterbury, U.K.;

关键词: Antenna gain;    beamforming;    folded monopole;    Yagi antenna;    customer-premises equipment;   

DOI  :  10.1109/ACCESS.2018.2813299

来源: DOAJ

【 摘 要 】

Two novel designs of dual-mode beam-steerable array antennas are proposed for customer-premises equipment applications. To obtain the optimal distribution of excitations for the arrays, the gain and front-back ratio of the array systems are optimized by using the method of maximum power transmission efficiency. The first design operates at 2.45 GHz and uses four folded monopoles of height <1/10 wavelength and a sleeve of height of 1/4 wavelength underneath the monopoles. The peak gain and the front-to-back ratio are 6.7 dBi and 7.8 dB respectively. The second design operates at 830MHz and uses four Yagi monopoles as elements with a common reflector and four directors. The peak gain and the front-to-back ratio for the second design are 6.0 dBi and 16.8 dB respectively. The proposed antennas have advantages including: low cost and compact size; dual-mode operation including the modes of omnidirectional radiation and directional radiation; and in the mode of directional radiation, the beam can be electronically steered to achieve the full coverage of the azimuthal plane. It achieves higher gain than the traditional electronically steerable passive array radiator antenna.

【 授权许可】

Unknown