Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board

Alibakhshikenari, Mohammad; Virdee, Bal S.; Althuwayb, Ayman A.; Azpilicueta, Leyre; Parchin, Naser Ojaroudi; See, Chan Hwang; Abd‐Alhameed, Raed A.; Falcone, Francisco; Huynen, Isabelle; Denidni, Tayeb A.; Limiti, Ernesto

doi:10.1038/s41598-021-86973-x

Cited by 17 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The capacitance value of cross-slot unit-cell can be varied by changing the gap between them. By increasing the capacitance value, the bandwidth will improve [50]. So, by increasing the number of cross-slot unit-cell, the bandwidth of the antenna has been improved.…”

Section: Cross-slot Metamaterials Structure Etched In the Ground Plan...mentioning

confidence: 99%

Metamaterial-Inspired Electrically Compact Triangular Antennas Loaded with CSRR and 3 × 3 Cross-Slots for 5G Indoor Distributed Antenna Systems

et al. 2022

View full text Add to dashboard Cite

In this article, two distinct kinds of metamaterial (MTM) antennas are proposed for fifth-generation (5G) indoor distributed antenna systems (IDAS). Both antennas operate in the sub-6 GHz 5G band, i.e., 3.5 GHz. The antenna’s radiating structure is based on a combination of triangular and rectangular patches, as well as two complementary split-ring resonators (CSRR) unit-cells etched on the top layer. The bottom layer of the first MTM antenna is a complete ground plane, while the bottom layer of the second MTM antenna is etched by a 3 × 3 cross-slot MTM structure on the ground plane. The use of these structures on the ground plane improves the antenna bandwidth. The proposed antennas are designed using two different substrates i.e., a high-end Rogers thermoset microwave materials (TMM4) substrate (h = 1.524 mm/εr = 4.5/tan δ = 0.002) and a low-end flame-resistant (FR4) epoxy glass substrate (h = 1.6 mm/εr = 4.3/tan δ = 0.025), respectively. The antenna designs are simulated using CST microwave studio, and in the end, the antenna fabrication is performed using FR4 substrate, and the results are compared. Furthermore, parametric analysis and comparative studies are carried out to investigate the performance of the designed antennas. The simulated and measured results are presented for various parameters such as return-loss, gain, and radiation pattern. The two MTM antennas have an overall dimension of 18 × 34 mm2, demonstrating that the proposed design is 60 percent smaller than a standard microstrip patch antenna (MPA). The two proposed MTM antenna designs with complete ground plane and 3 × 3 cross-slot MTM on the bottom layer using FR4 substrate have a measured gain/bandwidth characteristic of 100 MHz/2.6 dBi and 700 MHz/2.3 dBi, respectively.

show abstract

Section: Cross-slot Metamaterials Structure Etched In the Ground Plan...mentioning

confidence: 99%

Metamaterial-Inspired Electrically Compact Triangular Antennas Loaded with CSRR and 3 × 3 Cross-Slots for 5G Indoor Distributed Antenna Systems

et al. 2022

View full text Add to dashboard Cite

show abstract

“…It employed a hybrid strategy that included a flawed ground plane, matching stubs, and dot walls. A hybrid right-left-handed metamaterial transmission line planar antenna's bandwidth and gain were increased by using a non-Foster impedance matching circuit board [28]. Planar antennas were created with implanted slots to increase their bandwidth for reliable multiband RF communications [29].…”

Section: Introductionmentioning

confidence: 99%

Impact of Feed Point Position on Patch Antenna’s Return Loss and Bandwidth for UWB Applications

Ahmed

Kabir

Islam

2023

J. Multidiscip. Appl. Nat. Sci.

View full text Add to dashboard Cite

The demand for compact, lightweight, and high-performance antennas has increased in recent times in the communication industry. Microstrip patch antenna (MPA) becomes a better choice to effectively fulfill these requirements. In this study, hybrid techniques of partial ground plane, slotted patch, and defective ground structure are employed in MPA design to reduce the return loss, good impedance matching, and increased the bandwidth, gain, and efficiency of the antenna. This research demonstrates the impact of altering the feed point position, a crucial phenomenon of antenna design, on the patch antenna and determines the proper feed point location by comparing a minimum return loss (S11) which achieves the highest performance for the designed antenna. High-frequency structure simulator (HFSS) software is used to design and simulate the patch antenna. The operating frequency of the antenna is 6.85 GHz for UWB applications (3.1–10.6 GHz). A FR4 epoxy substrate material with dimensions of 30 mm × 20 mm is used to design the antenna. It has a dielectric constant of 4.4, a thickness of 0.8 mm and a tangent loss of 0.02. Multiple resonant frequencies are observed with different return losses for each feed location. The analysis shows that the finest feeding point is found at the center of the patch (9, 0) with a very low return loss (-28.35 dB), and a high impedance bandwidth (19.7 GHz). The antenna also achieved a gain of 4.46 dB, a directivity of 4.6904 dB, and a radiation efficiency of 95.90%. Hence, the location of the feed point can be considered as an influential factor in the antenna design.

show abstract

“…is back radiation can be used to illuminate the ground. us, some solutions are suggested for constructively enhancing the gain of planner antennas [11][12][13][14][15][16]. In the antenna casing of GPR, the use of a reflector, cavity, electromagnetic band-gap (EBG) structure, loop directors, and choke rings [17][18][19][20][21] is proposed for high gain GPR applications.…”

Section: Introductionmentioning

confidence: 99%

A Wideband Reflector-Backed Antenna for Applications in GPR

Raza

Lin

Ishfaq

et al. 2021

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

A resistively loaded wideband slotted patch antenna with optimized performance on lower frequencies is proposed for ground-penetrating radar (GPR) applications. The proposed design is backed by an optimized reflector composed of a periodic array of square loop elements, which enhances the antenna’s gain and directivity. The antenna shows good radiation characteristics and ease of integration with the GPR systems. The proposed structure features a compact size and wide bandwidth covering from 0.6 to 4.6 GHz. The peak gain of 7 dBi is achieved. The fabricated prototype of the antenna along with an integrated optimized reflective surface has overall dimensions of 18 × 22 × 5 cm3. The measured results validate the antenna’s performance in both free space and sandy medium, which enlighten its use for GPR applications.

show abstract

Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board

Cited by 17 publications

References 22 publications

Metamaterial-Inspired Electrically Compact Triangular Antennas Loaded with CSRR and 3 × 3 Cross-Slots for 5G Indoor Distributed Antenna Systems

Metamaterial-Inspired Electrically Compact Triangular Antennas Loaded with CSRR and 3 × 3 Cross-Slots for 5G Indoor Distributed Antenna Systems

Impact of Feed Point Position on Patch Antenna’s Return Loss and Bandwidth for UWB Applications

A Wideband Reflector-Backed Antenna for Applications in GPR

Contact Info

Product

Resources

About