Bandwidth Enhancement of an Antipodal Vivaldi Antenna Facilitated by Double-Ridged Substrate-Integrated Waveguide

Deng, Jieqiong; Cao, Run; Sun, Dongquan; Zhang, Yin; Guo, Lixin

doi:10.1109/tap.2020.2997474

Cited by 18 publications

(8 citation statements)

References 16 publications

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“…[38][39][40] are of larger size than the proposed AVA-LC. Next, other AVAs designed by [41][42][43][44][45] are comparatively smaller in size, but their gains are lower than the proposed AVA-LC. Further, the antenna designed in [46] gives less gain and narrower bandwidth.…”

Section: Lens and Corrugation Designmentioning

confidence: 94%

A Constant Gain and Miniaturized Antipodal Vivaldi Antenna for 5G Communication Applications

Dixit¹,

Kumar²,

Urooj³

2022

Computers, Materials &Amp; Continua

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This paper proposes a stable gain and a compact Antipodal Vivaldi Antenna (AVA) for a 38 GHz band of 5G communication. A novel compact AVA is designed to provide constant gain, high front to back ratio (FBR), and very high efficiency. The performance of the proposed AVA is enhanced with the help of a dielectric lens (DL) and corrugations. A rectangular-shaped DL is incorporated in conventional AVA (CAVA) to enhance its gain up to 1 dBi and the bandwidth by 1.8 GHz. Next, the rectangular corrugations are implemented in CAVA with lens (CAVA-L) to further improve the gain and bandwidth. The proposed AVA with lens and corrugations (AVA-LC) gives a constant and high gain of 8.2 to 9 dBi. The designed AVA-LC operates from 34 to 45 GHz frequency which covers 38 GHz (37.5 to 43.5 GHz) band of 5G applications. Further, the presented AVA-LC mitigates the back lobe and sidelobe levels, resulting in FBR and efficiency improvement. The FBR is in the range of 12.2 to 22 dB, and efficiency is 99%, almost constant. The AVA-LC is fabricated on Roger's RT/duroid 5880 substrate, and it is tested to verify the simulated results. The proposed compact AVA-LC with high gain, an improved FBR, excellent efficiency, and stable radiation patterns is suitable for the 38 GHz band of 5G devices.

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Section: Lens and Corrugation Designmentioning

confidence: 94%

A Constant Gain and Miniaturized Antipodal Vivaldi Antenna for 5G Communication Applications

Dixit¹,

Kumar²,

Urooj³

2022

Computers, Materials &Amp; Continua

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“…In the current era, there is considerable demand for high-speed communications [1][2][3][4][5][6]. With the emergence of microstrip structures and the growing demand for lightweight and compact structures [7,8], Vivaldi commonly features a gradually narrowing slot design. Initially introduced by Gibson in 1979, the Vivaldi was further refined by Gazit.…”

Section: Introductionmentioning

confidence: 99%

A Wide Bandwidth Vivaldi Antenna Suitable for 5G/6G Communication Utilizing a CMOS 0.18 μm Process

Chung,

Ting,

Tseng

2024

Telecom

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This text proposes a Vivaldi structure array antenna, using a power divider structure. The composition includes an antenna array with four antennas, suitable for a wideband array structure antenna in the 100 GHz frequency band. The goal is to address the challenges faced by monolithic systems in modern wireless communications, particularly the issue of the inapplicability of antennas on silicon substrates. The Vivaldi antenna was chosen for its wide bandwidth, high efficiency, and stable radiation pattern. It combines the characteristics of a wide scanning angle and ultra-wide bandwidth. Through integration with CMOS technology, the developed antenna achieved a bandwidth of 85.47–102.40 GHz. The peak gain reached −4 dBi, corresponding to a bandwidth of 17.7%. And the antenna volume was only 1.2 mm × 1.2 mm, demonstrating its immense potential in high-frequency wireless applications.

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“…Tapered slot antenna (TSA), also known as the Vivaldi antenna, is one of the promising candidates [6][7][8][9] featuring broadband, low weight, low profle, ease of fabrication, and integration with microwave circuits [10]. Recently, the development of substrate-integration technologies has enabled using the substrate-integrated waveguide (SIW) technology as the feed of the antipodal TSAs [11][12][13][14][15][16][17][18][19]. Compared with conventional microstrip-based feed, the SIWbased feed achieves a broader bandwidth and can provide a phase reversal excitation for the antipodal TSA without using a balun.…”

Section: Introductionmentioning

confidence: 99%

A Millimeter-Wave Antipodal Linearly Tapered Slot Antenna Array for 5G Wireless Communication

Ni¹,

Wang

Zheng³

et al. 2023

International Journal of Antennas and Propagation

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This paper presents an antipodal linearly tapered slot antenna (ALTSA) array with the newly emerging substrate-integrated coaxial line (SICL) technology. Each element of the proposed array consists of two vertically stacked antipodal tapered slot antennas (TSA) with the inner conductor of a SICL as the shared fin. The vertical symmetry of this radiating element structure significantly suppresses the cross-polarization level. By employing a SICL-based power splitter with differential outputs, a two-element array with horizontal symmetry is formed. With the inner conductors of two parallel SICLs combined as the flaring metal shared by adjacent tapered slots, the main beam squint is effectively suppressed. Experimental results show an actual −10-dB impedance bandwidth (BW) of 24.5∼34.4 GHz, and the realized gain range measured is 16.1∼18.7 dBi. The cross-polarization levels are −39.4 dB/−40.7 dB at 30 GHz for the E-/H-planes. The measured results agree well with the simulated data which demonstrates the feasibility of the proposed SICL-based ALTSA scheme in the potential 5 G·millimeter-wave (mmWave) applications.

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Bandwidth Enhancement of an Antipodal Vivaldi Antenna Facilitated by Double-Ridged Substrate-Integrated Waveguide

Cited by 18 publications

References 16 publications

A Constant Gain and Miniaturized Antipodal Vivaldi Antenna for 5G Communication Applications

A Constant Gain and Miniaturized Antipodal Vivaldi Antenna for 5G Communication Applications

A Wide Bandwidth Vivaldi Antenna Suitable for 5G/6G Communication Utilizing a CMOS 0.18 μm Process

A Millimeter-Wave Antipodal Linearly Tapered Slot Antenna Array for 5G Wireless Communication

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