Analysis of a microstrip antenna with variation on substrate PBG hexagonal

Abstract

In this article, we analyzed the influence of a photonic band gap (PBG) substrate on the radiation properties of microstrip antenna with a rectangular patch. Antenna parameters as the return loss (S11), bandwidth, gain and electric field density were analyzed. The proposed PBG structure presents three different settings, with variation in the diameter of the air holes printed on dielectric substrate. The obtained results showed a better performance in the parameters of the PBG antenna when compared with the reference antenna and have been validated experimentally by measuring the return loss in function of the operating frequency, obtained from the construction of prototypes. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:826–831, 2016

Frequency invariance, gain improvement, and fast design in 3D‐printed photonic band gap antennas with quadratic holes

“…This is important since cylindrical holes increase the size of the simulation mesh, leaving the computational design of these structures very slow. With respect to the gain of the antennas proposed, we obtained results similar to those of Guimarães et al, 7 however, we used a holes distribution rectangular mesh, simpler than the hexagonal symmetry used by them. To compare also with printed antennas, the work of Kumar and Dwari 13 presented a dielectric resonator antenna (DRA) printed in biodegradable material for WLAN/Wi-Max, but it obtained a gain of 4.5 dB, inferior to our antenna of quadratic holes.…”

“…The radius of the cylinder measures 1.25 mm, with an approximate area of A C = π r 2 ≈ 4.90 mm 2 . Guimarães et al presented a parameterization between different diameters, the diameter of 1 mm and 2.5 mm were the ones that resulted in better gain. In this article, we chose the hole with a diameter of 2.5 mm, by the cited advantage of gain and ease of confection in the 3D printer.…”

“…Silva et al analyzed the behavior of a rectangular patch antenna with different depths of cylindrical holes in its PBG substrate. Guimarães et al studied the behavior of a rectangular patch antenna with PBG substrate and holes arranged in a hexagonal mesh. It was observed that the resonance frequencies of the antenna increased with the increase of the diameter of the holes.…”

Project and Analysis of Quasi-Periodic PBG for Microstrip Antenna

“…To compare the results provide by the proposed PBG structure was designed a standard rectangular patch antenna which was used as reference antenna, being fed by microstrip line with input impedance of 50 Ω. That antenna is supposed to resonate at 5.8 GHz, as described in [21]- [22]. As a result, we obtained a width (W) of 15.73 mm and length (L) of 11.74 mm for the patch.…”

Grating Lobes Suppression in Frequency Selective Surfaces Using Electromagnetic Band Gap with Square Holes

“…Several techniques have been used to suppress spurious modes, such as the use of defects in the ground plane (Defected ground structure -DGS) of planar antennas [7], [8], or the use of metamaterials in microstrip filters [9], [10] and the use of electromagnetic bandgap (EBG) in planar antennas [11], [12]. However, it is not known to the authors the use of these techniques for suppression or reduction grating lobes in FSS.…”