A Large Frequency Ratio Dual-band Microstrip Antenna with Consistent Radiation Pattern for Internet of Sea Applications

Liao, Hanguang; Bilal, Rana Muhammad; Shamim, Atif

doi:10.23919/eucap51087.2021.9411169

Cited by 3 publications

(2 citation statements)

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“…ONITORING oceans and marine life has been challenging for decades due to the difficulty of placing sensors and retrieving data from the ocean environment. The concept of Internet of Sea has been presented recently which proposes a low-cost solution for wireless communication of data between the floating sensor nodes as well as from the node to a central server on land [1][2][3], as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

“…1. The upper part of the floating sensor node has been designed as a hexagonal prism structure, so that antennas can be realized on each vertical face and a good all-around horizontal radiation coverage can be obtained [3]. The top face of the hexagon structure has been dedicated for the realization of a GPS antenna array, which is the focus of this letter, as shown in detail view in Fig.…”

Section: Introductionmentioning

confidence: 99%

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A Low-Profile and High-Aperture-Efficiency Hexagonal Circularly Polarized Microstrip Antenna Array

Liao

Shamim

2022

Antennas Wirel. Propag. Lett.

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In this letter, a high aperture efficiency (AP), right hand circularly polarized (RHCP), sequentially rotated hexagonal microstrip antenna array, working at GPS L1 band, is proposed. The proposed antenna design is placed on the hexagonal top of a floating sensor node for ocean and marine monitoring applications. To use the hexagonal area effectively and maximize the AP, CP microstrip antenna elements have been distributed centrosymmetric about the origin on the hexagonal substrate. Typically, the AP is enhanced by using thicker substrates, particularly with air gaps. Here, we show a high AP on a very lowprofile substrate (0.011 for the lowest operating frequency) by properly choosing the distance of the antenna elements from the center of the array. The proposed design, based on H-shaped aperture-coupled circular patches, demonstrates a measured gain of 12.4 dBi and an AP of 101%, which is one of the highest reported AP for one of the lowest profile sequentially rotational array.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%