Wideband Circularly Polarized Printed Ring Slot Antenna for 5 GHz _ 6 GHz

Malaysian Technical Universities Conference on Engineering and Technology 2017

Osman, Mohamed Nasrun^1 ; Rahim, Mohamad Helmi A.^1 ; Jusoh, Muzammil^1 ; Sabapathy, Thennarasan^1 ; Rahim, Mohamad Kamal A.^2 ; Azemi, Saidatul Norlyana^3

Bioelectromagnetics Research Group (BioEM), School of Computer and Communication Engineering, Universiti Malaysia Perlis, Pauh Putra Main Campus, Arau, Perlis

02600, Malaysia^1

Advanced RF and Microwave Research Group (ARFMRG), Communication Engineering Department, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Skudai, Johor

81310, Malaysia^2

Advanced Communication Engineering Centre (ACE), School of Computer and Communication Engineering, Universiti Malaysia Perlis, Pauh Putra, Perlis, Arau

02600, Malaysia^3

关键词: Circularly polarized;    Measured results;    Operating frequency;    Printed slot antennas;    Ring-slot antennas;    Simulated results;    Slot structures;    Wireless power transfer (WPT);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/318/1/012040/pdf
DOI  :  10.1088/1757-899X/318/1/012040

来源: IOP

【 摘 要 】

This paper presents the design of circularly polarized printed slot antenna operating at 5 - 6 GHz. The proposed antenna consists of L-shaped feedline on the top of structure and circular ring slot positioned at the ground plane underneath the substrate as a radiator. A radial and narrow slot in the ground plane provides coupling between the L-shaped feedline and circular ring slot. The circular polarization is realized by implementing the slits perturbation located diagonally to perturb the current flow on the slot structure. The antenna prototype is fabricated on FR4 substrate. The simulated and measured results are compared and analyzed to demonstrate the performance of the antenna. Good measured of simulated results are obtained at the targeted operating frequency. The simulated -10dB reflection coefficient bandwidths and axial ratio are 750 MHz and 165 MHz, respectively. The investigation on the affect of the important parameters towards the reflection coefficient and axial are also presented. The proposed antenna is highly potential to be used for wireless local area network (WLAN) and wireless power transfer (WPT).