Compact Circularly Polarized Patch Antenna for WiMAX Applications with Improved Impedance Bandwidth and Axial Ratio

Swetha, R.; Anjaneyulu, L.

doi:10.48084/etasr.3207

Cited by 3 publications

(1 citation statement)

References 15 publications

(13 reference statements)

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“…The circular polarization can reduce the transmission loss affected by misalignment between two connected antennas and offers better system performance and better mobility compared to linear polarization. Two sided corner truncation technique was implemented on both sides of the patch so that better impedance matching across the operating bands can be obtained [12][13][14]. Corner truncation also ensures the circular polarization of the antenna.…”

Section: A Designmentioning

confidence: 99%

Miniaturization of Circularly Polarized Patch Antenna for RFID Reader Applications

Mekki

Necibi

Boussetta

et al. 2020

Eng. Technol. Appl. Sci. Res.

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This paper presents a Circularly Polarized Microstrip Patch Antenna (CPMPA) miniaturization with parasitic elements, suitable for UHF RFID systems. The antenna consists of a half E-shaped patch with cuts. A truncated corner patch can generate an additional Circular Polarization (CP) radiation mode and further enhance the axial ratio. Two symmetric cross shaped slots along the horizontal axis of the CPMPA have been embedded, and its dimension optimization has been based on parametric analysis. Thanks to this slotted structure and reduced surface area, good CP quality has been obtained with a 25% overall size reduction. The proposed antenna is lightweight, low profile, simple, and easily produced. The structure’s simulation is made using CST Studio Suite 2014 to compute return loss (S11), gain, and the axial ratio of the antenna while the overall miniaturized antenna’s volume is 77mm×58mm×1.6mm operating at 915MHz.

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Section: A Designmentioning

confidence: 99%

Miniaturization of Circularly Polarized Patch Antenna for RFID Reader Applications

Mekki

Necibi

Boussetta

et al. 2020

Eng. Technol. Appl. Sci. Res.

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A Novel and Compact Circularly Polarized Antenna for 5G Wireless Local Area Network Application

Swetha

Anjaneyulu

2020

Electrical, Control and Communication Engineering

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The research paper presents a novel and compact circularly polarized (CP) antenna for a 5G wireless local area network (WLAN) application. It consists of a circular patch and a coaxial probe feed radiator. Circular polarization (CP) is attained by symmetric semi-circular slits of radius r1 at three edges of a circular path with 90° in direction, and the other semicircular slit is of different radius r2. To improve the impedance bandwidth and axial ratio, the radius of the fourth semicircular slit on circular patch antenna is varied. The design is verified by fabricating a compact antenna of 0.65λ0 × 0.65λ0 × 0.01λ0. The measured 10 dB impedance bandwidth is 3.9 % (5.36–5.56 GHz), 3-dB axial ratio bandwidth is 1.1 % (5.43–5.49 GHz) and gain of 6.6 dBi at resonant frequency of 5.37 GHz is obtained. The authors also describe two-dimensional radiation patterns of azimuth and elevation plane surface current distribution of the CP patch, VSWR < 2. The proposed CP antenna is suitable for the 5G WLAN application. The proposed design is compared with various techniques in literature and tabulated. The measured results are also discussed and they are in good agreement with simulated results.

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Circuit Modeling and Analysis of Wearable Antennas on the Effect of Bending for Various Feeds

Mallavarapu

Anjaneyulu

2022

Eng. Technol. Appl. Sci. Res.

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The promising utilization of wearable antennas has experienced gigantic growth during the last decade. An antenna is one of the most significant and crucial components of wireless wearable devices. They need to be particularly designed to work while worn on and off the body. The wearable antenna embedded into clothing finds its use in wireless communications including tracking and navigation, mobile and wearable computing, and public safety and security. For user accessibility, there is a growing requirement for incorporating antennas on or in clothing. Determining the dielectric characteristics of the flexible substrates utilized in the design of the wearable antenna is also essential. In this paper, a Microstrip Ring Resonator (MRR) is employed to determine the dielectric properties of fabric substrates followed by state-of-the-art designs of wearable antennas and their bending effects at ISM band frequencies. An electrical equivalent model is designed to realize the potentials inside the geometry of an antenna under bending environment. This is followed by observing the effect of bending for different feeding methods on the wearable antenna's parameters when bending on a certain radius. The robustness of the proposed wearable antenna is examined by measuring the antenna under various bending curvatures for return loss, gain, and efficiencies. This will disclose the various contemplations for designing a wearable antenna from different feeding mechanisms with different materials and exemplifying the antenna's outcomes to dynamic moments of the human body. The performance of the proposed wearable antenna is acceptable even in a deformation environment, and there is a good agreement between the measured and the simulation results.

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Compact Circularly Polarized Patch Antenna for WiMAX Applications with Improved Impedance Bandwidth and Axial Ratio

Cited by 3 publications

References 15 publications

Miniaturization of Circularly Polarized Patch Antenna for RFID Reader Applications

Miniaturization of Circularly Polarized Patch Antenna for RFID Reader Applications

A Novel and Compact Circularly Polarized Antenna for 5G Wireless Local Area Network Application

Circuit Modeling and Analysis of Wearable Antennas on the Effect of Bending for Various Feeds

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