Dual-Wideband Square Slot Antenna With a U-Shaped Printed Tuning Stub for Personal Wireless Communication Systems

Eldek, Abdelnasser A.; Elsherbeni, Atef Z.; Smith, Charles E.

doi:10.2528/pier04103001

Cited by 55 publications

(36 citation statements)

References 13 publications

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“…In this paper, we present numerical analysis of the antenna in [15] to show the effect of each dimensional parameter. The numerical analysis results in a much better bandwidth of (1:10), with a low VSWR level of less than 1.75, and a small size of 16 mm, which is smaller than the antennas presented in [2][3][4][5][6][7][8][9][10][11][12][13][14]. The results in this paper are obtained from Ansoft HFSS simulations, which are based on the Finite Element Method (FEM).…”

Section: Introductionmentioning

confidence: 99%

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Numerical Analysis of a Small Ultra Wideband Microstrip-Fed Tap Monopole Antenna

Eldek¹

2006

PIER

Self Cite

117

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Abstract-This paper presents a planar microstrip-fed tab monopole antenna for ultra wideband wireless communications applications. The impedance bandwidth of the antenna is improved by adding slit in one side of the monopole, introducing a tapered transition between the monopole and the feed line, and adding two-step staircase notch in the ground plane. Numerical analysis for the antenna dimensional parameters using Ansoft HFSS is performed and presented. The proposed antenna has a small size of 16 × 19 mm, and provides an ultra wide bandwidth from 2.8 to 28 GHz with low VSWR level and good radiation characteristics to satisfy the requirements of the current and future wireless communications systems.

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Section: Introductionmentioning

confidence: 99%

“…In the last few years, researchers have investigated several kinds of microstrip slot and printed antennas for UWB applications [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. One of the best antennas in the last decade is the tap monopole antenna.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of a Small Ultra Wideband Microstrip-Fed Tap Monopole Antenna

Eldek¹

2006

PIER

Self Cite

117

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“…Recently, the wireless communications become essential in human activity [1][2][3][4][5]. Therefore, the demand for using a mobile telephone in anywhere is necessary.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Radiation Characteristics of a Probe-Excited Rectangular Ring Antenna by the Dyadic Green's Function Approach

Lamultree¹,

Phongcharoenpanich²,

Kosulvit³

et al. 2009

PIER B

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Abstract-Radiation characteristics of a probe-excited rectangular ring antenna are investigated by using the dyadic Green's function approach. The radiation characteristics, such as radiation pattern, beam-peak direction, half-power beamwidth and directivity, are analyzed. For the specified operating frequency, the ring width and ring height are selected as the same cross-sectional dimension of rectangular waveguide operated at the dominant mode. The effects of the excited probe and rectangular ring to the modal distributions are described. For the desired modal distribution, the directivity primarily depends on the ring lengths. For compact size of the proposed antenna, the ring length of 0.4λ is chosen to provide a bidirectional pattern with the calculated half-power beamwidth in E-plane and H-plane of 100 and 69 degrees respectively, and directivity of 4.43 dBi. Furthermore, the prototype antenna was fabricated and measured. The coincided results between the theory and the experiment are obtained.

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“…Higher-order modes can be significantly suppressed for the differentially-driven microstrip antenna, so the radiation efficiency of the differentially-driven microstrip antenna can be much higher than that of the single-ended counterpart [15], differentially driving operation is used in the novel antenna so that the radiation efficiency is higher. It is particularly suitable for highly-integrated solutions of modern wireless systems [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

A Novel Tunable Microstrip Patch Antenna Using Liquid Crystal

Dai¹,

Peng²,

Zhang³

et al. 2017

PIER C

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Abstract-This paper presents a novel tunable microstrip patch antenna using liquid crystal. It adopts a differentially-driven, aperture-coupled, and stacked-patch structure. Compared with the conventional design, this novel antenna achieves a larger frequency tuning range, much wider impedance bandwidth, higher radiation efficiency and gain. Besides, the novel antenna facilitates the bias design as the bias signal is naturally isolated from the RF signal. Both the conventional and novel antennas are designed to operate at 28 GHz using an RT/Duroid 5880 substrate and K15 liquid crystal. Results show that the novel antenna has a tuning range of 3.1%, an impedance bandwidth of 6.43%, a peak radiation efficiency of 70%, and a peak realized gain of 6.5 dBi, while the conventional antenna has the tuning range of 2.7%, impedance bandwidth of 3.57%, peak radiation efficiency of 45%, and peak realized peak gain of 4.5 dBi.

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Dual-Wideband Square Slot Antenna With a U-Shaped Printed Tuning Stub for Personal Wireless Communication Systems

Cited by 55 publications

References 13 publications

Numerical Analysis of a Small Ultra Wideband Microstrip-Fed Tap Monopole Antenna

Numerical Analysis of a Small Ultra Wideband Microstrip-Fed Tap Monopole Antenna

Analysis of Radiation Characteristics of a Probe-Excited Rectangular Ring Antenna by the Dyadic Green's Function Approach

A Novel Tunable Microstrip Patch Antenna Using Liquid Crystal

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