Reconfigurable wideband and narrowband tapered slot Vivaldi antenna with ring slot pairs

Yim, T.L.; Rahim, S. K. A.; Dewan, Raimi

doi:10.1080/09205071.2013.744124

Cited by 15 publications

(12 citation statements)

References 25 publications

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“…Various TSAs on dielectric substrates have been investigated to maximize the operating bandwidth [11][12][13] to enhance the forward gain [14][15] or to implement a reconfigurable antenna. [16] In [17], a double ETSA with lumped resistors was designed for a ground-penetrating radar application. This double ETSA exhibited a À10 dB reflection band of 220-6000 MHz.…”

Section: Introductionmentioning

confidence: 99%

Spidron fractal tapered slot antenna for dual-band radar applications

Jeong

Hwang

Park

et al. 2013

Journal of Electromagnetic Waves and Applications

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A dual-broadband Spidron fractal tapered slot antenna is proposed for radar applications in the S and X bands. Dual-Spidron fractal patches are symmetrically arranged adjacent to each other, and a slot is etched from the central section of the patch to form a feeding slot. A microstrip-to-slotline transition is used to excite the tapered aperture of the Spidron fractal patch. The proposed antenna is fabricated and tested, and has compact dimensions of 35.8 mm Â 24 mm (0.358 λ 0 Â 0.24 λ 0 ). The measured À10 dB reflection bandwidths for the lower and upper frequency bands are 39.42% (2.75-4.10 GHz) and 34.74% (7.85-11.15 GHz), respectively. The measurements also indicate that the proposed antenna exhibits two types of radiation patterns, namely, a near omni-directional pattern in the lower band and a directional pattern in the upper band. The measured peak gains range from 0.4 to 2.97 dBi in the lower band and from 1.42 to 5.52 dBi in the upper band.

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Section: Introductionmentioning

confidence: 99%

Spidron fractal tapered slot antenna for dual-band radar applications

Jeong

Hwang

Park

et al. 2013

Journal of Electromagnetic Waves and Applications

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“…Clearly, the MBAVA has 4 dB improvement of gain relative to the conventional BAVA (CBAVA). In addition, compared with the MBAVA, the modified balanced antipodal Vivaldi antenna with a director (MBAVA-D) has a better gain characteristic with the gain change increasing nearly 7 dB in middle-high frequencies (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25). Besides, the antenna gain is further increased about 6 dB owing to the modified director in high frequencies (> 30 GHz).…”

Section: Resultsmentioning

confidence: 99%

“…The BAVA has many excellent performances including producing a symmetrical beam in the E-plane and H-plane and having good directivity and high gain. Various methods and structures have been proposed to design Vivaldi antennas with good radiation characteristics [8][9][10][11][12][13][14][15][16][17][18]. In [8], the antenna gain and directivity were improved by the inclusion of a director consisting of a profiled piece of higher dielectric constant material in the antenna aperture.…”

Section: Introductionmentioning

confidence: 99%

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Wideband Balanced Antipodal Vivaldi Antenna With Enhanced Radiation Parameters

Li¹,

Xia²,

Liu³

et al. 2016

PIER C

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Abstract-A novel balanced antipodal Vivaldi antenna (BAVA) with high gain and enhanced radiation parameters is proposed in this paper. The outer edges of the flare are modified by a binomial curve to broaden the impedance bandwidth. A modified metal director is adopted to improve the antenna gain and beam-tilting. The measured results show that the proposed BAVA achieves a bandwidth from 2 to more than 40 GHz with peak gain > 0 dBi and > 1 dBi over the 8-40 GHz range. The squinting beam of E-plane is less than 5 • from 4 to 40 GHz and less than 3 • from 22 to 40 GHz.

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“…Reconfigurable antenna has recently attracted a lot of attention due to its ability in dynamically changing its operating frequency , beam control , and polarization to fulfill particular wireless communication service requirement . Frequency reconfigurable antenna is desirable as opposed to multiple use of single band antennas which increase the space consumption, fabrication cost, and circuit complexity .…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable antenna using capacitive loading to Artificial Magnetic Conductor (AMC)

Dewan

Rahim

Hamid

et al. 2016

Micro & Optical Tech Letters

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A dual band Artificial Magnetic Conductor (AMC) with capacitive tuning of reflection phase at lower band frequency is proposed. The AMC operates at upper band of fixed frequency at 5.8 GHz while the lower band reconfigurable frequency is from 2.5 GHz up to 3.1 GHz. The simulated reconfigurable frequencies are 2.5, 2.62, and 3.10 GHz. The corresponding resonance structure for each band is circular patch and circular slotted ring with single capacitor per AMC unit cell. Subsequently, the AMC is incorporated with conventional UWB antenna. The effects of AMC capacitive tuning to UWB antenna performance are studied in terms of frequency reconfigurability, gain, and radiation patterns. Measurement is also carried out for the reflection coefficient and radiation patterns. Parametrical studies of the antenna such as the misalignment between the top and bottom substrate layers, air gap between the substrate layers, and capacitance tolerance of the capacitor to the reflection coefficients are also discussed. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2422–2429, 2016

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Reconfigurable wideband and narrowband tapered slot Vivaldi antenna with ring slot pairs

Cited by 15 publications

References 25 publications

Spidron fractal tapered slot antenna for dual-band radar applications

Spidron fractal tapered slot antenna for dual-band radar applications

Wideband Balanced Antipodal Vivaldi Antenna With Enhanced Radiation Parameters

Reconfigurable antenna using capacitive loading to Artificial Magnetic Conductor (AMC)

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