X-Band Multilayer Stacked Microstrip Antenna Using Novel Electromagnetic Band-Gap Structures

Gaharwar, Mohit; Dhubkarya, D. C.

doi:10.1080/03772063.2021.1883484

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…The bandwidth of this antenna is considered narrow, and the antenna is not circularly polarized over the whole bandwidth. The eighth antenna in [9] is a multi-layered rectangular microstrip antenna, with an inset feeding technique, consisting of a 10 GHz resonating conventional microstrip patch and 9 × 9 electromagnetic bandgap (EBG) array, with a bandwidth extending from 9.42 GHz to 10.62 GHz, maximum gain of 8.5 dBi, and is not circularly polarized. The antenna size is 55×55×17.67 mm 3 (1.84λ 0 ×1.84λ 0 ×0.59λ 0 ).…”

Section: Introductionmentioning

confidence: 99%

Circularly Polarized Double-walled SIW Fractal Slot and Hexagonal Ring Slot Antenna Array for X-band Satellite Applications

Rabie,

El-Gendy,

El Damak

et al. 2024

PIER B

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This paper presents a circularly polarized double wall substrate integrated waveguide (SIW) fractal slot antenna array designed for X-band satellite applications. The proposed antenna demonstrates a reflection coefficient, covering the frequency range from 7.3 GHz to 8.5 GHz. The antenna is circularly polarized with a 3-dB axial ratio bandwidth ranging from 7.88 GHz to 8.58 GHz. The antenna array exhibits a gain variation between 11 dBi and 12.51 dBi. Moreover, the proposed design achieves an efficiency of 89%. With overall dimensions of 177 mm × 48.8 mm × 3.175 mm (4.8λ0 × 1.32λ0 × 0.086λ0), the antenna array is compact and suitable for satellites with limited surface area. This compact form factor facilitates seamless integration into satellite systems without compromising performance. The proposed antenna is suitable to be employed for the satellite X-band telemetry application extending from 7.9 GHz to 8.4 GHz. A prototype of the proposed antenna has been fabricated and then measured using Vector Network Analyzer (VNA) and anechoic chamber. The proposed antenna's measurement results match the simulated results.

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Section: Introductionmentioning

confidence: 99%

Circularly Polarized Double-walled SIW Fractal Slot and Hexagonal Ring Slot Antenna Array for X-band Satellite Applications

Rabie,

El-Gendy,

El Damak

et al. 2024

PIER B

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“…Also, when a high gain is required, installing an array antenna inside a CubeSat might be challenging because high gain array antennas require larger aperture size, and they would occupy beyond allocated space. To improve the gain of a single element antenna without the use of an array technique, numerous techniques have been proposed, including parasitic patches (PPs), 3 metasurface, 4 frequency selective surface (FSS), 5 artificial magnetic conductors (AMC), metamaterials, 6 electromagnetic Band‐gap structures (EBG), 7 and so forth.…”

Section: Introductionmentioning

confidence: 99%

A high gain dual circularly polarized X‐band antenna for CubeSat applications

Reddy

Sheela

2022

Micro & Optical Tech Letters

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In this article, a dual circularly polarized high gain superstrate integrated Xband antenna is designed and analyzed for CubeSat applications. The proposed antenna consists of a metallic patch, multilayer space qualified printed circuit boards, and a dielectric superstrate with a high relative permittivity on top of the patch to establish a suitable resonance condition for high-gain operation. The driven patch is fed by a 3-dB hybrid coupler for the generation of dual (left hand circular polarization and right hand circular polarization) circular polarization.The antenna exhibits an impedance bandwidth of >18.5% (7.75-9.4 GHz) with a peak gain of >16 dBiC. The achieved antenna performance makes it suitable for CubeSat missions at X-band.

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“…A particle is impacted by its current position, the best position in the swarm, and its velocity. Lately, PSO has been used to solve real-world engineering problems such as the design of multilayered rectangular microstrip antenna using electromagnetic band-gap (EBG) structures [29], and bandwidth improvement of an inverted-F antenna (IFA) [30]. Furthermore, the PSO algorithm is also able to design new engineering components, for example, artificial magnetic conductors [31].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Nearest-Neighbor Ant Colony Optimization Algorithm for Enhancing Load Balancing Task Management

Mbarek

Mosorov

2021

Applied Sciences

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Many computer problems that arise from real-world circumstances are NP-hard, while, in the worst case, these problems are generally assumed to be intractable. Existing distributed computing systems are commonly used for a range of large-scale complex problems, adding advantages to many areas of research. Dynamic load balancing is feasible in distributed computing systems since it is a significant key to maintaining stability of heterogeneous distributed computing systems (HDCS). The challenge of load balancing is an objective function of optimization with exponential complexity of solutions. The problem of dynamic load balancing raises with the scale of the HDCS and it is hard to tackle effectively. The solution to this unsolvable issue is being explored under a particular algorithm paradigm. A new codification strategy, namely hybrid nearest-neighbor ant colony optimization (ACO-NN), which, based on the metaheuristic ant colony optimization (ACO) and an approximate nearest-neighbor (NN) approaches, has been developed to establish a dynamic load balancing algorithm for distributed systems. Several experiments have been conducted to explore the efficiency of this stochastic iterative load balancing algorithm; it is tested with task and nodes accessibility and proved to be effective with diverse performance metrics.

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X-Band Multilayer Stacked Microstrip Antenna Using Novel Electromagnetic Band-Gap Structures

Cited by 6 publications

References 14 publications

Circularly Polarized Double-walled SIW Fractal Slot and Hexagonal Ring Slot Antenna Array for X-band Satellite Applications

Circularly Polarized Double-walled SIW Fractal Slot and Hexagonal Ring Slot Antenna Array for X-band Satellite Applications

A high gain dual circularly polarized X‐band antenna for CubeSat applications

Hybrid Nearest-Neighbor Ant Colony Optimization Algorithm for Enhancing Load Balancing Task Management

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