Abstract
The significance of high gain directional antennas stems from the need to cope up with the everyday progressing wireless communication systems. Due to low gain of the widely used microstrip antenna, combining multiple antennas in proper geometry increases the gain with good directive property. Over other array forms, this paper uses concentric circular array configuration for its compact structure and inherent symmetry in azimuth. This proposed array is composed of 9 elements on FR-4 substrate, which is designed for WLAN applications at 5.8GHz. Antenna Magus software is used for synthesis, while CST software is used for optimization. The proposed array is designed with optimum inter-element spacing and number of elements achieving a high directional gain of 15.7 dB compared to 14.2 dB of available literature, with a high reduction in side lobe level of -17.6 dB.
Highlights
The significance of high gain directional antennas stems from the need to cope up with the everyday progressing wireless communication systems
Over other array forms, this paper uses concentric circular array configuration for its compact structure and inherent symmetry in azimuth. This proposed array is composed of 9 elements on FR-4 substrate, which is designed for WLAN applications at 5.8GHz
Funding text Authors are grateful to Research Management Centre, International Islamic University Malaysia to support this research through research grant RIGS16-065-0229
Summary
IOP Conference Series: Materials Science and Engineering Volume 260, Issue 1, 7 November 2017, Article number 012038 6th International Conference on Mechatronics 2017, ICOM 2017; International Islamic University Malaysia (IIUM) Gombak CampusKuala Lumpur; Malaysia; 8 August 2017 through 9 August 2017; Code 131673.
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