Enhanced UWB Printed Monopole Antenna Based on Ground Plane Modifications

Abdelazeez, Mohamed K.; Sharif, Ahmad

doi:10.5455/jjcit.71-1513441132

Cited by 2 publications

(1 citation statement)

References 10 publications

(14 reference statements)

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“…Consequently, researchers have been actively working to develop new and effective methods to enhance the different aspects of microstrip patch antennas, particularly their bandwidth. Radiating elements of printed antennas consist of patches with diverse shapes, such as triangular, rectangular, square, elliptical, and circular [4,5]. Among these options, circular structures have demonstrated smaller dimensions relative to frequency operations.…”

Section: Introductionmentioning

confidence: 99%

Design and Performance Evaluation of a Second-Order Iterated Circular Minkowski Fractal Antenna for Ultra-Wideband Applications

Joseph,

Kumar,

Afullo

2023

Fractal Fract

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In this article, a second-order iterated Circular Minkowski fractal antenna (CMFA) tailored for ultra-wideband (UWB) applications is designed and developed. Leveraging the power of Minkowski fractal geometry, this antenna design achieves a high gain across the UWB frequency spectrum. The design utilizes a circular groove on the ground plane and an arc slot on the radiating element for improving the antenna performance. The proposed antenna is fabricated using cost-effective material, an FR-4 substrate. The antenna is simulated and optimized. The fabricated optimized antenna undergoes real-world testing. Measured results reveal an impressive 120.6% impedance bandwidth spanning from 3.37 GHz to 13.6 GHz, with resonant frequencies at 4.43 GHz, 6.07 GHz, and 9.3 GHz. Meanwhile, the simulated results indicate an impedance bandwidth of 118% ranging from 3.17 GHz to 12.44 GHz. Real-world measurements validate the anticipated UWB traits, closely aligning with the simulation data, and confirming efficient impedance matching with a VSWR of less than 2 across the 3.37 GHz to 13.6 GHz frequency range. The radiation pattern analysis demonstrates a robust bidirectional E-plane pattern and a nearly omnidirectional H-plane pattern. This research introduces a highly promising circular Minkowski fractal antenna for UWB applications, offering exceptional bandwidth and resonance characteristics. This antenna design holds excellent potential for multi-functional wireless systems and opens avenues for enhanced UWB communication and sensing capabilities in diverse applications.

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Section: Introductionmentioning

confidence: 99%

Design and Performance Evaluation of a Second-Order Iterated Circular Minkowski Fractal Antenna for Ultra-Wideband Applications

Joseph,

Kumar,

Afullo

2023

Fractal Fract

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Compact Super Wideband Frequency Diversity Hexagonal Shaped Monopole Antenna With Switchable Rejection Band

et al. 2022

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To reduce interference from other wireless communications, a smaller super wideband frequency diversity hexagonal monopole antenna with switchable rejection band capabilities is proposed. The patch has the shape of hexagonal with an open-ended horizontal slot that divides the patch into upper and lower parts. The notch switchable features and the frequency diversity are controlled by changing the length of the resonator through alternating the state of two inserted parallel PIN diodes inside the horizontal openended slot. The upper part of the hexagonal patch is connected to the negative terminal of the diodes and the biasing circuit in the bottom layer through a conducting pin while the lower part is connected to the positive terminal of the diode. When both diodes are OFF the antenna works as a super wideband covering a bandwidth that starts at 3.37 and ends at 27.71 GHz. When both diodes are ON, a frequency band 3.81 -6.62 GHz is filtered, and a band notch has appeared. The antenna's radiation pattern is broadsided directional, and the efficiency reached 92.9 % and 96 % for the ON and OFF cases respectively. The reflection coefficient (S11) at the rejection reaches -3.06 dB at 5.38 GHz. The suggested design's overall size is 36 mm × 36 mm × 1.6 mm on an FR-4 substrate material with a loss tangent of 𝑡𝑎𝑛𝛿 = 0.02. Hence, the proposed super wideband antenna is well-suited for applications in wireless communications.

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Enhanced UWB Printed Monopole Antenna Based on Ground Plane Modifications

Abstract: In this paper, a UWB antenna with an enhanced bandwidth is proposed. The GHz (147.29%). Promising peak gain with good impedance matching and omni-directional radiation pattern are obtained.

Cited by 2 publications

References 10 publications

Design and Performance Evaluation of a Second-Order Iterated Circular Minkowski Fractal Antenna for Ultra-Wideband Applications

Design and Performance Evaluation of a Second-Order Iterated Circular Minkowski Fractal Antenna for Ultra-Wideband Applications

Compact Super Wideband Frequency Diversity Hexagonal Shaped Monopole Antenna With Switchable Rejection Band

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