A Practical Miniaturized U-Slot Patch Antenna With Enhanced Bandwidth

Khodaei, Farhad Gh.; Nourinia, Javad; Ghobadi, and Changiz

doi:10.2528/pierb07112201

Cited by 123 publications

(94 citation statements)

References 14 publications

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“…Accordingly, the multiband antenna is desired in many systems. In the literature reviews, there are various multiband antennas that have been developed over the years, which can be utilized to achieve the objectives of multiband operation, for instance, the PIFA [1,2] for using in mobile phone application, the slot spiral antenna [3] for dual band or multiband operation, the triangle-shaped monopole antenna [4], and other [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Recently, the developing multiband antennas have been improved due to use of the fractal concept.…”

Section: Introductionmentioning

confidence: 99%

A Bidirectional Multiband Antenna With Modified Fractal Slot Fed by CPW

Mahatthanajatuphat¹,

Akkaraekthalin²,

Saleekaw³

et al. 2009

PIER

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Abstract-This paper presents a multiband slot antenna with modifying fractal geometry fed by coplanar waveguide (CPW) transmission line.The presented antenna has been designed by modifying an inner fractal patch of the antenna to operate at multiple resonant frequencies, which effectively supports the digital communication system (DCS 1.71-1.88 GHz), worldwide interoperability for microwave access (WiMAX 3.30-3.80 GHz), IMT advanced system or forth generation mobile communication system (3.40-4.2 GHz), and wireless local area network (WLAN 5.15-5.35 GHz). Manifestly, it has been found that the radiation patterns of the presented antenna are still similarly to the bidirectional radiation pattern at all operating frequencies. The properties of the antennas, for instance, return losses, radiation patterns and gain are determined via numerical simulation and measurement.Corresponding author: C. Mahatthanajatuphat (cmp@kmutnb.ac.th). 60Mahatthanajatuphat et al.

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Section: Introductionmentioning

confidence: 99%

A Bidirectional Multiband Antenna With Modified Fractal Slot Fed by CPW

Mahatthanajatuphat¹,

Akkaraekthalin²,

Saleekaw³

et al. 2009

PIER

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show abstract

“…Many microstrip antennas which operate for dual and tri-band operation are being reported [6][7][8][9][10][11]. For example bandwidth enhancement of printed slot antenna [6] having wideband of 2.80 to 11.81 GHz is reported.…”

Section: Introductionmentioning

confidence: 99%

“…Antenna reported in [11] offers for a dual band frequency range for a dual square ring slot. Polarization is also main characteristics in design of antenna.…”

Section: Introductionmentioning

confidence: 99%

Design of Small Dual Band Microstrip Antenna for Broadband Applications

Parbhane¹

2014

Acta Tech Jaur

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In this article, a small dual band rectangular slot antenna for broadband application is presented. The antenna is being excited by capacitively coupled probe feed. The antenna consists of rectangular slot from the center of the patch. The rectangular slot is being used to obtain dual frequencies of 2GHz and 3.34GHz.Instead of a rectangular feed strip, antenna is excited by a triangular feed strip with same dimension. Triangular feed strip is used to obtain a broad band frequency range. The size of the antenna is 100×100×1.6mm3with the ground of same dimension. The proposed antenna is simulated and optimized using IE3D simulation software.

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“…On the other hand, microstrip patch antennas (MPAs) [5] are an appropriate candidate due to their low cost and profile, compactness, and conformity to planar and nonplanar surfaces. Various shapes of the MPA element were extensively studied, such as rectangular [6][7][8][9][10], U-slot [11,12], H-shaped [13], fractal [14], annual ring [15], polygonal [16], star-shaped [17] patch antennas and so on, and have a lot of applications, for example in the RF front-end [18]. But their impedance bandwidths are often a few percents.…”

Section: Introductionmentioning

confidence: 99%

Novel Unidirectional Slot Antenna With a Vertical Wall

Xue

et al. 2008

PIER

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Abstract-A novel slot antenna that consists of an H-shaped slot encompassed by a rectangular metallic wall and a pair of C-shaped slots outside the wall is proposed. It features a unidirectional pattern, small electrical dimensions and medium gain. The H-shaped slot radiates as an inductively loaded magnetic dipole while the induced electric currents on the vertical wall radiates as electric dipoles. The front-to-back ratio (FBR) of the antenna can be controlled by proper constructive and destructive interferences of radiating fields of the magnetic and electric dipoles. The size of the ground plane can be reduced by the use of the C-shaped slots that confine the currents to the proximity of the metallic wall. Two prototype antennas operating at 2.4 GHz were designed. By adjusting the structure parameters, the front-to-back ratio of the antenna can be conveniently altered. The first prototype has an impedance bandwidth (BW) of 3.8% for SWR ≤ 2, a 4.6 dBi gain, a 10-dB FBR and a ground size of 0.84λ 0 × 0.64λ 0 where λ 0 is the free-space wavelength at the center frequency. The corresponding figures of the second prototype are 1.83%, 4.1 dBi, over 20 dB and 0.64λ 0 × 0.64λ 0 . Both antennas have a height of 0.128λ 0 .

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A Practical Miniaturized U-Slot Patch Antenna With Enhanced Bandwidth

Cited by 123 publications

References 14 publications

A Bidirectional Multiband Antenna With Modified Fractal Slot Fed by CPW

A Bidirectional Multiband Antenna With Modified Fractal Slot Fed by CPW

Design of Small Dual Band Microstrip Antenna for Broadband Applications

Novel Unidirectional Slot Antenna With a Vertical Wall

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