Study on bandwidth enhancement techniques of microstrip antenna

El-Sagheer, Ragab M.

doi:10.1016/j.jesit.2015.05.003

Cited by 12 publications

(5 citation statements)

References 8 publications

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“…Basic microstrip antennas have inherent narrowband characteristics [23], [24]. However, a few modifications, such as using a thick substrate or adding etched slots, can enable the achievement of ultra-wideband (UWB) characteristics [25]- [27]. One approach is to modify the radiating patch, which is typically square, rectangular, or circular, to imitate shapes found in nature, such as those seen in trees or leaves.…”

Section: B Wideband and Multiband Bio-inspired Antennasmentioning

confidence: 99%

Review of Recent Advancement on Nature/Bio-Inspired Antenna Designs

Azam,

Shah,

Bashir

et al. 2024

IEEE Access

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This article presents an extensive examination of antennas rooted in nature and biology, showcasing their remarkable performance across a wide spectrum of frequencies-from microwave to terahertz. The limitations of traditional antenna design have become increasingly evident in the face of burgeoning demands for novel communication technologies. Conventional analytical-equation-based approaches struggle to deliver the combined performance characteristicsencompassing bandwidth, gain, radiation pattern, and miniaturizationthat emerging technologies necessitate. This has fueled an interest in bioinspired antenna designs, a paradigm shift drawing inspiration from the ingenious structural solutions found in the living and nonliving world, from plant leaves to bird feathers. These bio-inspired designs offer distinct advantages such as broader bandwidth and reduced sizes, making them highly appealing alternatives to the limitations of conventional antenna designs. This review explores a diverse range of bio-inspired designs. Among them are fractal geometries, inspired by self-repeating patterns in nature, which achieve optimal performance. Numerous designs in this category draw inspiration from nature, incorporating patterns observed in snowflakes, tree branches, clouds, and butterflies. Furthermore, nano-antennas have attracted significant attention for their vast potential applications in microwave and optical frequencies, playing a pivotal role in high-resolution spectroscopy, biomedical diagnosis and sensing, quantum photonics, and solar cell applications. By examining design methodologies and potential benefits, this article highlights the transformative potential of nature-inspired antennas. The compelling advantages of bio-inspired approaches necessitate a thorough exploration of their potential, paving the way for the development of next-generation communication systems with unprecedented capabilities.INDEX TERMS Bio-inspired antennas, Nano antennas, Wearable antennas, Fractal antennas.

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Section: B Wideband and Multiband Bio-inspired Antennasmentioning

confidence: 99%

Review of Recent Advancement on Nature/Bio-Inspired Antenna Designs

Azam,

Shah,

Bashir

et al. 2024

IEEE Access

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“…Conventional microstrip antenna structures are narrowband and their impedance bandwidth is typically 1-2%. However, the bandwidth can be improved by either increasing the substrate thickness, decreasing the dielectric constant (ε r ) of the substrate [43][44][45][46][47], or both. Other techniques, such as proximity coupled feed [48], aperture-coupled feed [49,50], and L-shaped feeding probe [51,52], can also be used.…”

Section: Bandwidth Enhancementmentioning

confidence: 99%

Design of Low-Profile Single- and Dual-Band Antennas for IoT Applications

et al. 2021

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This paper presents novel low-cost single- and dual-band microstrip patch antennas. The proposed antennas are realized on a square microstrip patch etched symmetrically with four slots. The antenna is designed to have low cost and reduced size to use in Internet of things (IoT) applications. The antennas provide a reconfigurable architecture that allows operation in different wireless communication bands. The proposed structure can be adjusted to operate either in single band or in dual-band operation. Two prototypes are implemented and evaluated. The first structure works at a single resonance frequency (f1 = 2.4 GHz); however, the second configuration works at two resonance frequencies (f1 = 2.4 GHz and f2 = 2.8 GHz) within the same size. These antennas use a low-cost FR-4 dielectric substrate. The 2.4 GHz is allotted for the industrial, scientific, and medical (ISM) band, and the 2.8 GHz is allocated to verify the concept and can be adjusted to meet the user’s requirements. The measurement of the fabricated antennas closely matches the simulated results.

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“…It was concluded in [27] that parasitic patches should be put into practice in comparison with increasing the substrate's thickness for the extension of the operational BW as this is the only technique that does not debase the remaining performance parameters. Different novel mechanisms were explored in [28] for the optimum design having reasonably high gain and large working electromagnetic spectrum.…”

Section: Introductionmentioning

confidence: 99%

A Wideband and Efficient Patch Antenna with Two Different Feeding Mechanisms for Ku/K Bands Applications

Ahmed

Babar

Ali

et al. 2020

Mehran Univ. res. j. eng. technol.

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Low BW (Bandwidth) is a major limitation of microstrip antennas. A patch antenna having a large BW for Ku band applications is demonstrated in this manuscript. The skills of Defected Ground Structure (DGS) and defected driven patch were engaged to widen its BW. Four slices have also been confiscated from the ground for upgrading various characteristics. It is established on the basis of this study that it can be employed in spectrum defining and bands. It puts forward an impedance BW of 8GHz, which is appropriate for numerous applications. The ground/substrate of the structure under consideration is 22×10-3m long and 10×103m wide and these specifications imply that the volume of this design is very small. The entire structure’s utmost thickness is 1.67×10-3m. It can be easily installed in relevant handy electronic devices. Investigations and analysis in this case are made with computer software known as Computer Simulation Technology. The simulated design exhibits a very good gain and efficiency. Deviation in the gain of the simulated design was from 4.4 7.3dBi and it guaranteed the highest efficiency of 98.6%. Some minor changes in the antenna resulted in expansion in the BW from 8GHz to 14GHz. The return loss which was recorded at frequency of 18.15GHz went to 48.97dB and the mentioned changes assured the uppermost efficiency of 83.1%. The fabricated antenna achieved a bandwidth of 28GHz which is far better than the simulated bandwidth.

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Study on bandwidth enhancement techniques of microstrip antenna

Cited by 12 publications

References 8 publications

Review of Recent Advancement on Nature/Bio-Inspired Antenna Designs

Review of Recent Advancement on Nature/Bio-Inspired Antenna Designs

Design of Low-Profile Single- and Dual-Band Antennas for IoT Applications

A Wideband and Efficient Patch Antenna with Two Different Feeding Mechanisms for Ku/K Bands Applications

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