A novel UWB rugby-ball antenna for near-range microwave Radar system

Ruengwaree, Amnoiy; Ghose, A.M.; Kompa, G.

doi:10.1109/tmtt.2006.874892

Cited by 21 publications

(8 citation statements)

References 6 publications

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“…Multiple novel shapes such as rugby ball [19], Mickey mouse antenna [20] were invented earlier by modifying this conventional CDM. Compared to circular disk shape, elliptical shape can enhance the effective length of antenna radiator without affecting the simplicity and compactness of CDM.…”

Section: Antenna Designmentioning

confidence: 99%

A Compact Umbrella-Shaped UWB Antenna with Gain Augmentation Using Frequency Selective Surface

Kundu¹,

Chatterjee²,

Jana³

et al. 2018

RADIOENGINEERING

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Section: Antenna Designmentioning

confidence: 99%

A Compact Umbrella-Shaped UWB Antenna with Gain Augmentation Using Frequency Selective Surface

Kundu¹,

Chatterjee²,

Jana³

et al. 2018

RADIOENGINEERING

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“…Requirement of GPR antenna includes light weight and compact size with broad impedance bandwidth, flat gain variation, high efficiency, and minimal dispersion. TEM horn, bow‐tie, vivaldi, valentine, rugby ball, log periodic, and slot type of antenna were well considered for GPR applications …”

Section: Introductionmentioning

confidence: 99%

A leaf‐shaped CPW‐fed UWB antenna for GPR applications

Kundu

Jana

2018

Micro & Optical Tech Letters

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A new co‐planar waveguide fed UWB antenna with transitions in feed line is proposed in this article. A good agreement is found in between simulated and measured results of the proposed design. The antenna provides a bandwidth improvement of more than 120% with min. group delay variation, high efficiency of 88%, and gain variation of 2–5 dBi. The antenna pattern is omnidirectional in H‐plane and monopole like in E‐plane. The proposed antenna is also tested in close proximity of soil to establish its ability for GPR applications.

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“…Ground penetrating radar is widely used to scan the sub surface of interest by transmitting and receiving electromagnetic waves using UWB antenna . Different types of UWB antenna like horn and Vivaldi, valentine, bow‐tie, rugby ball, frequency independent, and slot antenna were proposed earlier for GPR applications. Horn, Vivaldi and Valentine antenna can provide satisfactory GPR performances but heavy weight and bulky structures limited their uses in GPR.…”

Section: Introductionmentioning

confidence: 99%

A compact umbrella shaped UWB antenna for ground‐coupling GPR applications

Kundu

Jana

2017

Micro & Optical Tech Letters

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A compact (35 3 30 3 0.8 mm 3 ) umbrella shaped ultra wideband antenna that gives wide impedance bandwidth of more than 123% with low dispersion, 3-5 dBi gain and average efficiency of 84% is proposed. The antenna is tested in close proximity of soil. Satisfactory results ensure its ability to work as GPR antenna. K E Y W O R D Sground coupling, ground penetrating radar, ultra wide-band antenna, umbrella shape | I NT RODU CTI ONGround penetrating radar is widely used to scan the sub surface of interest by transmitting and receiving electromagnetic waves using UWB antenna. 1 Different types of UWB antenna like horn and Vivaldi, 2-6 valentine, 7 bow-tie, 8,9 rugby ball, 10 frequency independent, 11 and slot antenna 12,13 were proposed earlier for GPR applications. Horn, Vivaldi and Valentine antenna can provide satisfactory GPR performances but heavy weight and bulky structures limited their uses in GPR. Frequency independent like spiral antenna can provide wide bandwidth but it also introduce significant ringing effect. Bowtie, rugby ball antenna can be very compact in size and able to give good GPR performance but it require capacitive and inductive loading to broaden impedance bandwidth and minimize ringing effect, respectively. The loading increases antenna efficiency loss significantly. Also low gain profile is another drawback of such antenna. Slot type GPR antenna also has larger dimensions. Recently Ming Li et al. proposed a high gain, low dispersive slot 146 | KUNDU AND JANA antenna having dimension of 106 3 68 mm 2 and limited impedance bandwidth of 1.4-3.5 GHz. 13 Wide bandwidth is required to get better plan resolution of GPR. Plan or lateral resolution indicates the scanning ability to differentiate between any two buried objects of same depth. The relation between antenna bandwidth (B) and plan resolution length (Dr) is given by the expression, B ! V/4Dr where V indicates speed of electromagnetic wave in subsurface material.In this article, a compact, coplanar waveguide fed, umbrella shaped monopole antenna is proposed. The antenna gives a wide impedance bandwidth from 3.1 to 13.1 GHz covering the unlicensed 3.1-10.6 GHz UWB band as allotted by FCC in 2002. 14 Fundamental antenna parameters like VSWR, pattern, efficiency, gain, transfer function (S 21 ) and group delay were simulated and measured. Good agreement is observed in the results. The antenna is also tested in ground coupling mode to ensure its ability as GPR antenna. | A NTEN NA DE S I GNGeometry of the proposed antenna is shown in Figure 1. Figure 1A shows the construction of radiating patch by taking the intersection of two ellipses of radius (1.7R, R) and (1.5R, 2R), respectively. The maximum patch length is 2R and width is 3R. The maximum patch dimension (D), that is, maximum patch width is taken as k L /4 where k L 5 c/f L . Here, c indicates speed of light and f L represents lower cutoff frequency that is 3.1 GHz. Figure 1B,C represents the design flow. Design A and B indicate microstrip fed and coplanar fed antenna structure...

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A novel UWB rugby-ball antenna for near-range microwave Radar system

Cited by 21 publications

References 6 publications

A Compact Umbrella-Shaped UWB Antenna with Gain Augmentation Using Frequency Selective Surface

A Compact Umbrella-Shaped UWB Antenna with Gain Augmentation Using Frequency Selective Surface

A leaf‐shaped CPW‐fed UWB antenna for GPR applications

A compact umbrella shaped UWB antenna for ground‐coupling GPR applications

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