Size Reduction and Gain Enhancement of a Microstrip Antenna using Partially Defected Ground Structure and  Circular/Cross Slots

Tawfeeq, Nada N.

doi:10.11591/ijece.v7i2.pp894-898

Cited by 10 publications

(7 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Pada penelitian sebelumnya [7] didapatkan hasil pengukuran parameter sebuah antena mikrostrip yang di desain untuk mereduksi dimensi antena dengan metode Defected Ground Structure mendapatkan nilai return loss sebesar -22.30 dB, gain sebesar 3.45 dB dan presentasi reduksi dimensi sebesar 33.1 %. Pada Penelitian [8] berhasil membuktikan bahwa dengan metode fractal berhasil mereduksi dimensi antena dengan presentase yang lebih besar dari menggunakan metode DGS yaitu sebesar 47.80%.…”

Section: Pendahuluanunclassified

Design of Minkowski Array Microstrip Fractal Antenna at 3.5 GHz Frequency for 5G Communication System

2021

View full text Add to dashboard Cite

Technological developments in the field of telecommunications are experiencing rapid progress, especially the presence of 5G technology as a fifth generation cellular communication system that has many advantages at the World Radiocommunication Conference (WRC) in 2015, 5G candidate frequency bands below 6 GHz have been widely discussed, and the range the following frequencies have been suggested: 470–694, 1427–1518, 3300–3800, and 4500–4990 MHz. One of recommendation of resonant frequency is 3.5 GHz, as it is acceptable in most countries. Therefore, a reliable communication network is needed, especially in the 3.5 GHz frequency band for fifth generation applications. Antena is one of the important communication components in radio communication system. Mikrostrip Antena is a type of Antena that is currently growing because it has the advantage of having a light weight and low profile. This paper proposed development of mikrostrip Antena using the fractal method, increase the gain using the Array method, and achieve the target return loss ≤ -10 dB, VSWR ≤ 2, and gain ≥ 5 dB at frequency of 3.5 GHz for 5G communication sytsem. Proposed Antena is designed using a duroid R5880 substrate with a dielectric constant value of 2.2, a dielectric loss (tan loss) of 0.0009 and a substrate thickness (h) of 1.57 mm. This study resulted in a reduction in Antena dimensions until 53.76% with return loss of -42.48 dB, VSWR 1.02, and a gain of 8.46 dB. The results obtained in this design meet the specifications of the predetermined targets.

show abstract

Section: Pendahuluanunclassified

Design of Minkowski Array Microstrip Fractal Antenna at 3.5 GHz Frequency for 5G Communication System

2021

View full text Add to dashboard Cite

show abstract

“…There are also studies focusing on co-planar structured array antenna and using the CPW feeding [7][8][9][10][11]. In addition, there are different studies on the improvement of s parameters [12] , bandwidth [11,13,14] and gain [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

The Effect of the Co-Planar Structure on HPBW and the Directional Gain at the Square Patch Antenna around ISM 2450 MHz

2022

Teh. vjesn.

View full text Add to dashboard Cite

In this study, ISM-band microstrip square patch antenna with 2450 MHz operating frequency was designed, the S11 reflection coefficient of the antenna and the maximum antenna gain at φ and θ angles was determined, and the values of HPBW were calculated. The simulations were performed in Ansoft HFSS and the accuracy of the gain value enhancement in the results was confirmed by CST Studio Suit. Then, by placing the co-planar structure around this patch, the values for different co-planar thicknesses were obtained again. The maximum antenna gain of the co-planar structure in φ and θ angles and its effect on HPBW values were compared. According to this, the maximum gain value of 113 × 118 mm microstrip square patch antenna with no co-planar structure was obtained as 0,308 dB and HPBW value was obtained as 55,05°. When these values were obtained again by adding co-planar structure without changing the antenna dimensions, it was observed that the maximum gain value was 0,748 dB and HPBW value was 49,46°. As can be understood from these values, the addition of co-planar structure was observed to have a positive effect on the antenna parameters by causing the increase in Maximum Gain. HPBW values decreased contrast to the gain. Here, it was observed that adding co-planar structure increased the directionality and max gain of the antenna on the radiation pattern, and the θ angle, in which the max gain occurred, shifted from 90 to 85. It was also observed that a similar effect occurred at different antenna sizes. Traditionally, antenna gain is achieved by increasing antenna dimensions. In this study, it was investigated to increase the antenna gain without increasing the antenna size marginally.

show abstract

“…The advantage of DGS is that the slow-wave effect can be achieved easily by using only one or a few DGS structures. This results in the reduction of the circuit size [18], [19]. The slow-wave effect can reduce the velocity of the transmission line's group or increase its group latency to compress microwave design with slow-wave structures [20].…”

Section: Introductionmentioning

confidence: 99%

Bandwidth enhancement of ultra-wideband monopole antenna designed with v-shaped defected ground structure

Hui

Mat

Zaidel

et al. 2022

IJEECS

View full text Add to dashboard Cite

This paper discusses the design of a monopole antenna with various types of defected ground structures (DGS) for ultra-wideband (UWB) applications. The various types of DGSs are designed and acted as the ground layer of the antenna. The bandwidth of each design is then compared with and without the existence of DGS. Conventional monopole antenna has a bandwidth of 88.6% and operates in the frequency range of 3.1 to 8 GHz. According to the simulation results, the bandwidth of the monopole antenna with V-shaped DGS was the highest, which was at 133.3% (2.98-14.9 GHz), as compared to other types of DGS. The efficiency was between 30 to 64%, with a peak realized gain of 5.3 dB. The V-shaped DGS is then fabricated on a rogers RO4003C substrate with a relative permittivity, 𝛆𝐫, of 3.38 and a dimension of 29.86×39.03×0.81 mm. The antenna is measured using R&S network analyzer and the results were 3-8.5 GHz and 95.4% of BW, which signified the increased performance of the antenna.

show abstract

Size Reduction and Gain Enhancement of a Microstrip Antenna using Partially Defected Ground Structure and Circular/Cross Slots

Cited by 10 publications

References 14 publications

Design of Minkowski Array Microstrip Fractal Antenna at 3.5 GHz Frequency for 5G Communication System

Design of Minkowski Array Microstrip Fractal Antenna at 3.5 GHz Frequency for 5G Communication System

The Effect of the Co-Planar Structure on HPBW and the Directional Gain at the Square Patch Antenna around ISM 2450 MHz

Bandwidth enhancement of ultra-wideband monopole antenna designed with v-shaped defected ground structure

Contact Info

Product

Resources

About