Circularly polarized antenna array based on hybrid couplers for 5G devices | Zendy

Tan Minh Cao | Zendy; Thảo Hoàng Thị Phương | Zendy; Thi Duyen Bui | Zendy

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Circularly polarized antenna array based on hybrid couplers for 5G devices

Author(s) -

Tan Minh Cao,

Thảo Hoàng Thị Phương,

Thi Duyen Bui

Publication year - 2021

Publication title -

bulletin of electrical engineering and informatics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.251

H-Index - 12

ISSN - 2302-9285

DOI - 10.11591/eei.v10i3.3017

Subject(s) - coaxial antenna , turnstile antenna , dipole antenna , antenna measurement , wideband , antenna factor , optics , bandwidth (computing) , antenna gain , monopole antenna , antenna array , antenna efficiency , physics , antenna (radio) , optoelectronics , materials science , computer science , telecommunications

This paper depicts a wideband circularly polarized (CP) antenna for 5G devices. The antenna array has a 3D structure including four simple printed dipole elements with directional radiations, high gain, and high efficiency. It achieves a CP by using the sequential rotation (SR) feeding based on 90°-3dB hybrid couplers in the proposed feeding network. The antenna array bandwidth is wide, 26.7%, with an operating frequency band from 3.35 GHz to 4.35 GHz. The antenna achieves a high peak gain of 10.73 dBi and high efficiency of 93.75%. Besides, the antenna gain is stable over the operating bandwidth (BW). At the centre operating frequency of 3.75 GHz, the angle of circular polarization is 51°. The antenna is designed and fabricated on the Rogers 4003 C substrate. The measured S11 is well matching with the simulation results. With the above characteristics, the proposed antenna can be a suitable candidate for 5G devices.

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