Cavity‐backed bow‐tie antenna with dielectric loading for ground‐penetrating radar application

Liu, Shufang; Li, Mengqian; Li, Huimin; Yang, Linna; Shi, Xiaowei

doi:10.1049/iet-map.2019.0309

Cited by 13 publications

(4 citation statements)

References 17 publications

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“…Takizawa et al [40] presented a folded bow-tie antenna having UWB characteristics. A cavity backed bow-tie antenna was proposed by Liu et al [41].…”

Section: 1planar Antennamentioning

confidence: 99%

Performance investigation of patch and bow-tie antennas for ground penetrating radar applications

Barkataki¹,

Tiru²,

Sarma³

2021

IJATEE

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Ground penetrating radar (GPR) detects objects beneath the surface of the earth. It is also used in applications such as the characterisation of mortar cracks [1], soil surveys [2], diagnosis of pavement structures [3], bedrock identifications [4], detection of cavities in fragile regions [5], etc. Tree root biomass investigation is also done using GPR. This helps in aeration through root channels, water infiltration and soil amelioration [6]. In short, GPR has proven a useful tool in various fields of engineering, archaeology, geophysics and so on [7].The choice of the antenna greatly affects the efficiency of a GPR system. These antennas have to be custom designed, considering the fact that the system is operating close to the ground. The designers have to take into account various characteristics such as propagation path, dielectric properties of the subsurface, frequency and the bandwidth of the signal.

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“…Takizawa et al [40] presented a folded bow-tie antenna having UWB characteristics. A cavity backed bow-tie antenna was proposed by Liu et al [41].…”

Section: 1planar Antennamentioning

confidence: 99%

Performance investigation of patch and bow-tie antennas for ground penetrating radar applications

Barkataki¹,

Tiru²,

Sarma³

2021

IJATEE

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“…Antennas are particularly popular due to their uncomplicated structure and linear phase characteristics within the operating frequency range.This can be attributed to its favorable attributes, including high gain, relatively broad bandwidth, and straightforward manufacturing process [18].with their compact size and affordable price, have gained significant interest in various telecommunications applications [19] .They can be designed and manufactured for use in narrow and ultra-high bandwidth frequency bands, and microstrip antennas can be implemented in different sizes and configurations. Bowtie antennas have been widely used in wide-range radars due to their enhanced return loss, high gain, impedance, and radiation pattern stability [20] In this study, a bowtie antenna was designed and simulated to create a bowtie antenna suitable for GPR applications [21]. The proposed antenna was designed and simulated using CST Microwave Studio v14 and then fabricated.…”

Section: Introductionmentioning

confidence: 99%

Design and Realization of 2.4 GHz Bowtie Antenna for Ground Penetrating Radar (GPR)

ALtalqi,

Elisa,

Echchelh

2023

IJEEI

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In this research, a microstrip antenna with a bowtie hole was constructed. The proposed antenna is designed and fabricated to operate in the 2.4 GHz frequency band. Arc antennas are a popular choice due to their flat structure, lightweight design, wide bandwidth, and high gain characteristics for GPR applications. The antenna was designed as a microstrip antenna in the size of 58 mm x 69 mm. using an FR4 duplex printed circuit board with a material thickness of 1.6 mm, a dielectric constant of 4.3 and a transverse dielectric loss tangent of 0.02. The design and simulation were performed using CST Studio Suite programming. The results of the simulation and measurements antenna were tested for resonant frequency, return loss, VSWR, bandwidth, impedance, and polarization, and the simulation results were compared. The measurements carried out with a Vector Network Analyzer, showed a return loss of -18, a VSWR of 1.29, a bandwidth of 100 MHz, an impedance of 47 ohms, and a high gain of 18 dB at 2.42 GHz. Both the simulation and measurement results demonstrated good agreement, with frequency bands of interest that were very close and stable with high-gain omnidirectional radiation characteristics. Thus, the antenna is well-suited to meet the requirements of GPR applications.

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“…Nowadays, the bow‐tie antenna is still considered as a good candidate for many applications such as multiband WLAN/WiMAX/LTE [12], 5G [13], infrared polarimetry [14], ground‐penetrating [15] and short range radars [16]. It is also a good candidate to conceive wideband high‐gain antenna systems when associated with artificial magnetic conductors [17, 18].…”

Section: Introductionmentioning

confidence: 99%

The bow‐tie antenna: Performance limitations and improvements

Mello

Lepage

Begaud

2022

IET Microwaves Antenna & Prop

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The simple planar shape and wideband input impedance of the bow‐tie antenna make it suitable to diverse wideband applications. However, the radiation pattern of this kind of antenna is not stable and the gain in the broadside direction deteriorates with increasing frequencies. In this article, the operation of both the triangular and the rounded‐edge versions of the bow‐tie antenna is thoroughly investigated and the performance thereof is compared. A technique to maximise such performance, which consists of inserting radially aligned grooves in the radiators' ends, is presented. The bandwidth, defined by a broadside gain of at least 2 dBi and a reflection coefficient magnitude of less than −10 dB, is improved from 85.7% to 97.9% in simulations. Such an improvement is validated through the measurement of two prototypes, in which the presented technique also increases the broadside gain in up to 1.5 dB, with no significant change in the shapes of the radiation patterns and in the reflection coefficient magnitude.

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Cavity‐backed bow‐tie antenna with dielectric loading for ground‐penetrating radar application

Cited by 13 publications

References 17 publications

Performance investigation of patch and bow-tie antennas for ground penetrating radar applications

Performance investigation of patch and bow-tie antennas for ground penetrating radar applications

Design and Realization of 2.4 GHz Bowtie Antenna for Ground Penetrating Radar (GPR)

The bow‐tie antenna: Performance limitations and improvements

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