Axial mode helical antenna with circular prasitic rings for gain enhancement

The Effect of Parasitic Rings and Ground Plane on Helix Strip Antenna

“…It shows that the parasitic ring The bandwidth generated from the helix strip antenna with parasitic rings addition has increased by 296.2 MHz compared without the parasitic rings' addition. Furthermore, the gain generated from strip helix antenna with parasitic ring addition increased by 0.0201 dB This is consistent with previous research which states that the parasitic ring addition can increase the gain value on the helix antenna [8]. This study has proven that parasitic rings addition can also increase the gain value in the strip helix antenna.…”

“…The antenna proposed in this paper has smaller dimensions compared to the previous study [11]; even so, it is able to produce a higher gain of 1.4 dB. In addition, although helix antennas with parasitic rings in other studies have higher gain, the antenna sizes are six times higher [8] and 11.5 times higher [9], while the generated bandwidths are smaller than the proposed antenna [8], [9]. In this paper, the proposed strip helix antenna's dimensions are also smaller compared to the research result in [12].…”

“…However, this helix antenna is not compact when applied to mobile devices such as FPV because its size is too large and wide. Some studies have been carried out to overcome this helix antenna size issue, such as the use of parasitic circular rings [8], the merging of helix antennas with patches [9], conical strip helix antennas [10], 1, 1 turn vertical strip helix antennas [11], and horizontal strip helix antennas with the addition of parasitic patches [12].…”

“…The utilized antenna type is the same as the antenna designed in the previous study, i.e., the strip helix antenna with parasitic patch addition [12]. The utilization of parasitic elements is a well-known technique that can increase the gain value on an antenna [8], [19]- [21]. In addition, it has been proven that the ground plane size reduction is able to increase the gain value on the helix antenna [5].…”

“…In addition, it has been proven that the ground plane size reduction is able to increase the gain value on the helix antenna [5]. Hence, in this strip helix antenna design, parasitic elements such as parasitic rings [8] and ground plane sizes [5] were added, so that a 2.4 GHz strip helix antenna was expected to be produced with a compact size, wide bandwidth and high gain.…”