Coaxially Fed Monopole Antenna With Choke Structure Using Left-Handed Transmission Line

Fukushima, Takatsugu; Michishita, Naobumi; Morishita, Hisashi; Fujimoto, Naoya

doi:10.1109/tap.2017.2758399

Cited by 15 publications

(1 citation statement)

References 17 publications

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“…The left-handed dipole antenna is a new kind of antenna. Its name derives from its left-handed mode of transmission [ 45 , 46 ]. The design of this antenna is fundamentally built on shunt inductors and capacitors.…”

Section: Antenna Overviewmentioning

confidence: 99%

The Recent Advancement in Unmanned Aerial Vehicle Tracking Antenna: A Review

Kelechi¹,

Alsharif

Oluwole³

et al. 2021

Sensors

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Unmanned aerial vehicle (UAV) antenna tracking system is an electromechanical component designed to track and steer the signal beams from the ground control station (GCS) to the airborne platform for optimum signal alignment. In a tracking system, an antenna continuously tracks a moving target and records their position. A UAV tracking antenna system is susceptible to signal loss if omnidirectional antenna is deployed as the preferred design. Therefore, to achieve longer UAV distance communication, there is a need for directional high gain antenna. From design principle, directional antennas are known to focus their signal energy in a particular direction viewed from their radiation pattern which is concentrated in a particular azimuth direction. Unfortunately, a directional antenna is limited by angle, thus, it must always be directed to the target. The other limitation of a UAV mechanical beam steering system is that the system is expensive to maintain and with low reliability. To solve this problem, we are proposing the use of MIMO technology as a readily available technology for UAV beyond line of sight technology. Although UAV antenna tracking is domiciled in the mechanical beam steering arrangement, this study shows that this native technology could be usurped by MIMO beam forming.

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Section: Antenna Overviewmentioning

confidence: 99%