A microstrip Yagi antenna using EBG structure

Abstract

[1] In this paper a detailed design, development and performances of a 5 GHz microstrip Yagi antenna, which uses a two-dimensional (2-D) electromagnetic band gap (EBG) structure in the ground plane, are presented. The results indicate that the use of the EBG structure improves the radiation pattern of the antenna. The cross polarization is suppressed by properly choosing the period and dimensions of EBGs. Also, the broadside gain is improved in comparison with the analogous antenna without the EBGs.

A High Gain Double-Octagon Fractal Microstrip Yagi Antenna

“…However, the proposed antenna still covers the desired frequency range from 5.725 GHz to 5.875 GHz. In summary, the D-OFMYA can provide higher gain in comparison to previous works in [8][9][10]. Additionally, reduction in size can be achieved through this design.…”

“…It is interesting to note that the D-OFMYA in this research work has better performance in term of gain surface area size compared to the other [8][9][10]. Table 2 shows that the D-OFMYA exhibits 84.72%, 44.57%, 33.33% and 56% size reductions compared to [8], [9] and [10], respectively. …”

“…In 2003, Padhi and Bialkowski [8] proposed a combination between microstrip Yagi antenna and EBG structure on the ground plane in order to increase the gain without increasing the antenna size. The gain of 10.8 dB could be achieved through this antenna.…”

Low-Profile Array of Wire Patch Antennas

“…But, this kind of antennas cannot be placed close to a ground plane due to the tangential E field annulation. One solution could be to use an EBG ground plane, but it increases strongly the complexity of the antenna [6][7][8]. The usual arrays located near to a ground plane like patches or slots which provide a directive main lobe in the bore sight direction are not convenient with this application.…”