Circularly Polarized Loop-Type Ground Radiation Antenna for IoT Applications

Zahid, Zeeshan; Qu, Longyue; Kim, Hyung-Hoon; Kim, Hyeongdong

doi:10.26866/jees.2019.19.3.153

Cited by 18 publications

(11 citation statements)

References 16 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The AR bandwidth achieved in [12] is mainly attributed to larger ground size and additional T-shaped structure. However, the matching bandwidths of [14,[26][27][28] are higher than the proposed antenna, mainly because of the additional GMT structure. Furthermore, the MIMO performance of the proposed antenna is better than that of [14].…”

Section: Measured Results and Discussionmentioning

confidence: 86%

“…The GMT consists of a metal strip attached at the periphery of the ground plane through an inductor. The structures were used to design CP antennas for mobile devices in various studies [26][27][28]. A CP antenna was proposed in [29] for arbitrary location on the ground plane where parasitic structures were used for phase compensation and magnitude regulation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Slot-Type Mimo Antenna With Pattern and Circular Polarization Diversity for Mobile Applications

Ullah¹,

Zahid²

2020

PIER M

View full text Add to dashboard Cite

Here we propose an L-shaped slot-type MIMO antenna with pattern and circular polarization diversity for WLAN applications. In order to maintain a low profile, the pattern and polarization diversities have been achieved without using additional supporting structures. Both the antenna elements are located at the corners of the same side of the ground plane. One of the antenna elements produces left hand circularly polarized (CP) waves whereas the other element produces right hand CP waves in (front) +z-direction. The senses of polarizations are opposite in (backward) −zdirection. CP waves have been generated using two orthogonal current modes, excited by locating the slots on the corner of the ground plane. The quadrature phase difference between the modes has been employed using the slot geometry. In other directions, the antenna correlation has been reduced using pattern diversity. The measured results confirm the simulated ones. The measured axial ratio bandwidth (< 3 dB) and the matching bandwidth (< −6 dB) are 380 MHz and 110 MHz, respectively. The envelop correlation coefficient is less than 0.1 in the operating band.

show abstract

Section: Measured Results and Discussionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Slot-Type Mimo Antenna With Pattern and Circular Polarization Diversity for Mobile Applications

Ullah¹,

Zahid²

2020

PIER M

View full text Add to dashboard Cite

show abstract

“…The evolution of fifth-generation (5G) communication systems will lead us into an era of ubiquitous connectivity and the Internet of Things (IoT) [1]. The main purpose of the IoT is to strengthen new user experiences and to link new industries with enhanced performance, security, and affordable prices [2]. Importantly, the aim of 5G is to attain a peak data rate of 20 Gbps by utilizing the millimeter-wave (mm-wave) spectrum [3].…”

Section: Introductionmentioning

confidence: 99%

Design and Characterization of Wideband Printed Antenna Based on DGS for 28 GHz 5G Applications

Awan

Naqvi

et al. 2021

J Electromagn Eng Sci

View full text Add to dashboard Cite

In this paper, a compact, wideband, printed antenna is proposed for millimeter-wave fifth-generation communication systems. The proposed design is a patch antenna with a defected ground structure, in which ground plane defects are utilized to reduce resonance and achieve wideband operation. The optimized antenna dimensions are 2.5 mm × 4.5 mm with a substrate thickness of 0.203 mm. A prototype antenna was fabricated and measured to verify the performance, and it was established that the simulated and measured results were in good agreement. The measured bandwidth was approximately 6.4 GHz (26.5–32.9 GHz) with a peak gain of 5.62 dBi and an efficiency in operational bandwidth of 84%. The compactness, wide bandwidth, and decent gain suggest that the proposed antenna is a potential contender for forthcoming communication systems.

show abstract

“…Electrically small antennas (ESAs) are essential in modern wireless technology since the space allotted for antenna installation in electronic and mobile devices has become smaller. The study of ESAs has a long history, and various miniaturization techniques exist [9]- [15]. Most of them are related to changing the electrical and physical configurations of the antenna as a means of reducing the resonant frequency with acceptable radiation properties.…”

Section: Introductionmentioning

confidence: 99%

Realization of Electrically Small, Low-Profile Quasi-Isotropic Antenna Using 3D Printing Technology

et al. 2020

View full text Add to dashboard Cite

A 3D printed, low-profile, electrically small antenna with a quasi-isotropic radiation pattern is presented herein. It is composed of an electric meandered dipole antenna, and the extended arcs from the meander line mimicking the current flow of the loop antenna. A quasi-isotropic radiation pattern is achieved from the total current flow over the proposed structure. Modern stereolithographic 3D printing and nano-polycrystalline copper coating technologies are used to build a prototype. The measured antenna exhibits a good uniformity in terms of the radiation pattern with a maximum gain deviation of 4.5 dB at 959 MHz and a radiation efficiency of 81 %, close to the computed expectations. The electrical size of the antenna ka is 0.48, and its height is λ 0 /82.32.INDEX TERMS 3D printing, isotropic radiation pattern, electrically small antennas, radiation pattern synthesis.

show abstract

Circularly Polarized Loop-Type Ground Radiation Antenna for IoT Applications

Cited by 18 publications

References 16 publications

Slot-Type Mimo Antenna With Pattern and Circular Polarization Diversity for Mobile Applications

Slot-Type Mimo Antenna With Pattern and Circular Polarization Diversity for Mobile Applications

Design and Characterization of Wideband Printed Antenna Based on DGS for 28 GHz 5G Applications

Realization of Electrically Small, Low-Profile Quasi-Isotropic Antenna Using 3D Printing Technology

Contact Info

Product

Resources

About