Optimization to the Scan Blindness of Vivaldi Array with Metallic T-Shaped Structure

Wu, Bing; Wang, Hao; Liu, Xin; Ding, Zengxia; Quan, Shuanglong; Cao, Jianyin; Soothar, Permanand

doi:10.1109/ieee-iws.2019.8803990

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…In the past five years, researchers have proposed various strategies and have modified slot antenna designs to attain broad impedance bandwidth and high gain features. These approaches have mainly focused on different feeding networks [ 15 , 16 , 17 , 18 , 19 , 20 , 21 ], defected ground structures (DGS) [ 22 , 23 , 24 ], artificial magnetic conductors (AMC) loaded lattice [ 25 ] and the etching of cut slits from radiators [ 26 , 27 , 28 , 29 ]. However, few of these compact and low profile antenna design structures were capable of covering a broad bandwidth at 5G mm-Wave frequency range.…”

Section: Introductionmentioning

confidence: 99%

A New CPW-Fed Semicircular Inverted Triangular Shaped Antenna Based on Mixed-Alternate Approach for 5G Millimeter-Wave Wireless Applications

et al. 2023

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This paper presents the design and development of a new semicircular inverted triangular shaped antenna for 5G millimeter-wave wireless applications. An alternate-mixed approach based on cavity, slots and loaded stubs is employed in the designed antenna lattice. The suggested antenna structure is formed by a radiator, partial defected metal ground plane and a 50 Ω coplanar waveguide. The proposed antenna resonated at multiple frequencies by the setting up of the proper dimensions and locations of the rectangles, elliptical cut slots and cavity stubs. Furthermore, a parametric analysis is carried out to examine the antenna’s effectiveness and impedance-matching controls. The proposed structure is realized on the low-cost RT/Duroid Rogers RO3010™ laminate with an overall small size of 1.381λ0 × 1.08λ0 × 0.098λ0, where λ0 represents the wavelength corresponding to the minimum edge frequency of the 23 GHz at 10 dB impedance bandwidth of the antenna. The antenna’s key characteristics in terms of bandwidth, gain, radiation patterns and current distribution have been investigated. The antenna exhibits high performance, including an impedance bandwidth of 19 GHz ranging from 23 GHz to 42 GHz, results in 58.46% wider relative bandwidth calculated at 10 dB scaled return loss, a peak realized gain of 6.75 dBi, optimal radiation efficiency of 89%, stable omnidirectional-shaped radiation patterns and robust current distribution across the antenna structure at multiple resonances. The designed antenna has been fabricated and simulation experiments evaluated its performance. The results demonstrate that the antenna is appropriate and can be well integrated into 5G millimeter-wave wireless communication systems.

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Section: Introductionmentioning

confidence: 99%

A New CPW-Fed Semicircular Inverted Triangular Shaped Antenna Based on Mixed-Alternate Approach for 5G Millimeter-Wave Wireless Applications

et al. 2023

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“…In the literature, various antenna geometries, such as slits, tapered slot radiator, and flared transition with modified cavity stubs [14][15][16][17] have been reported. Also, several designs based on different slot shapes [18][19][20] were suggested to achieve the required gain, acceptable BW, radiation efficiency, and perfect impedance matching. e reported antennas consist of intricate structures and exhibited a satisfactory performance in terms of BW, peak gain, and radiation efficiency.…”

Section: Introductionmentioning

confidence: 99%

A Miniaturized Broadband and High Gain Planar Vivaldi Antenna for Future Wireless Communication Applications

Soothar

Wang

et al. 2021

International Journal of Antennas and Propagation

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This paper presents a new miniaturized planar Vivaldi antenna (PVA) design. The proposed antenna structure consists of an aperture tapered profile and cavity stub fed with a simple 50 Ω strip line feeding network. The designed PVA offers versatile advantages, including the miniaturized size and simple design, and exhibited an outstanding performance compared to the latest reported literature. The antenna occupies a minimal space with an electrical size of 0.92λ0 × 0.64λ0 × 0.03λ0. The antenna achieves an excellent relative impedance bandwidth 117.25% at 10 dB return loss, peak realized gain of 10.9 dBi, and an excellent radiation efficiency of 95% at the specific resonances. The antenna’s optimal features, that is, broadband, high gain, and radiation efficiency, are achieved with efficient grooves based approach. Besides, the proposed antenna results are also analyzed in the time domain, which shows the excellent group delay performance <2 ns in the operational band. The proposed antenna exhibited a stable far-ﬁeld radiation pattern in orthogonal planes and strong distribution of current at multiple resonances. Simulation and the measured result show a good agreement. The proposed antenna has achieved optimal performance and is suitable for future wireless communication applications.

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“…A tapered slot antenna (TSA) is one of the types of travelling wave antennas or planar end-fire antennas which have received considerable attention due to their wide impedance bandwidth characteristics. Vivaldi antennas have been used in numerous applications like satellite communications [2], Ultra-wideband (UWB) [3][4], scanning phased array [5][6], vehicular communication system [7], imaging construction material [8], medical imaging [9][10], cognitive radio [11], brain tumors [12], and GPR system [13][14]. The end-fire travelling wave antennas have demonstrated broadband bandwidth, high gain and symmetrically E -H beam pattern.…”

Section: Introductionmentioning

confidence: 99%

A Compact Broadband and High Gain Tapered Slot Antenna with Stripline Feeding Network for H, X, Ku and K Band Applications

Soothar¹,

Wang²,

Xu³

et al. 2020

IJACSA

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In this paper, a planar travelling wave tapered slot antenna with compact size is proposed for wireless communication applications. The prototype of antenna is developed on Roger RT/Duroid 5880 laminate with tan δ = 0.0009, a relative permittivity of 2.2 while working in the range of 6GHz-21GHz. The simple feeding technique transits with radial cavity and the opening taper profile. The antenna dimensions of the antenna have been designed in such a manner so as to enable impedance matching. The parametric study of the variables is carried out by various scrupulous simulations. The designed characteristic antenna has achieved an impedance bandwidth in the broadband spectrum of 111.11% at the minimum 10-dB return loss and peak realized gain of 7dBi is obtained for a resonant frequency of 19.6GHz. The simulated results are in good agreement with experimental results and hence make the antenna suitable for H (6-8 GHz), X (8-12 GHz), Ku (12-18 GHz) and K (18-26 GHz) and future wireless communication applications.

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Optimization to the Scan Blindness of Vivaldi Array with Metallic T-Shaped Structure

Cited by 3 publications

References 8 publications

A New CPW-Fed Semicircular Inverted Triangular Shaped Antenna Based on Mixed-Alternate Approach for 5G Millimeter-Wave Wireless Applications

A New CPW-Fed Semicircular Inverted Triangular Shaped Antenna Based on Mixed-Alternate Approach for 5G Millimeter-Wave Wireless Applications

A Miniaturized Broadband and High Gain Planar Vivaldi Antenna for Future Wireless Communication Applications

A Compact Broadband and High Gain Tapered Slot Antenna with Stripline Feeding Network for H, X, Ku and K Band Applications

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