Circularly Polarized U-Slot Antenna

Tong, Kin‐Fai; Wong, T.P.

doi:10.1109/tap.2007.901930

Cited by 232 publications

(91 citation statements)

References 7 publications

(15 reference statements)

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“…Because of the advantages of low profile, design simplicity and robustness, many CP antennas are designed with slots [1][2][3][4][5][6][7][8][9][10][11][12][13]. Slotrings [3][4][5][6], square slot [7][8][9][10][11], and U-shaped slot [12,13] are effective methods to achieve circular polarization. In order to simplify the feeding structure and save space, a coplanar waveguide (CPW) approach is adopted in CP antennas [14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Broadband CPW-Fed Circularly Polarized Antenna With an Irregular Slot for 2.45 GHZ Rfid Reader

Chen¹,

Ren²,

Yin³

et al. 2013

PIER Letters

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Abstract-A coplanar waveguide-fed slot antenna with wideband circular polarization characteristic is presented. The proposed antenna consists of an irregular slot with a stair-shaped edge and an L-shaped feed line. The stair-shaped edge can improve the circular polarization of the antenna. The simulated and measured results show that the antenna has an impedance bandwidth (VSWR < 2) about 1040 MHz (42%@2.47 GHz) and an axial ratio (AR) bandwidth (AR < 3 dB) about 640 MHz (25.8%@2.48 GHz) for 2.45 GHz RFID applications. The RHCP gain in the main radiation direction varies between 2.3 dBi and 3.8 dBi.

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Section: Introductionmentioning

confidence: 99%

Broadband CPW-Fed Circularly Polarized Antenna With an Irregular Slot for 2.45 GHZ Rfid Reader

Chen¹,

Ren²,

Yin³

et al. 2013

PIER Letters

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“…The parametric study has also been carried out to analyze the effects caused by different arm lengths of the U-slot. Both experimental and theoretical results of the antenna had been verified [10]. The physical parameters for example length of U slot, width of U slot, height and size of patch, probe location, substrate permittivity can greatly affect the antenna's performance [6].…”

Section: Related Workmentioning

confidence: 81%

Numerical Analysis of Slot Position of Rectangular U Slot Microstrip Patch Antenna

Kaur¹,

Dhaliwal

2016

IJWMT

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The main focus of this paper is to study and analyze how the performance of rectangular U slot antenna is affected by the variation of U slot position. The work presented herein is a simulation based study. Experimentally, it has been revealed that variations in parameters such as the width and length of the U-slot, height and size of the patch, probe size and location as well as substrate permittivity can dramatically change the antenna's behavior. Till date, no analytical methods have been developed that accurately relate the complex relationships between the antenna dimensions and individuality. This paper describes the behavior of antenna with change of U slot position. A numerical solution is obtained by varying the various positions of U slot along all the axis and the effect of U slot position on various antenna output parameters is analyzed.

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“…Since rectangular patch, instead of square patch is used in [3], it is predicted that the U-slot may function better on rectangular patch than square patch. In [21], a single feed "asymmetric U-slot" microstrip antenna is presented. CP is generated by the unequal arms of the U-slot and not from the truncated corners using in our design.…”

Section: Resultsmentioning

confidence: 99%

Design and Study of Wideband Single Feed Circularly Polarized Microstrip Antennas

Yang¹,

Lee²,

Kishk³

et al. 2008

PIER

195

122

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Abstract-The performance of single feed truncated corner circularly polarized microstrip antennas with different substrate thickness is studied by simulation and experiment. It is found that the axial ratio bandwidth could be enhanced considerably when a thicker substrate is used, provided that a U-slot and/or L-probe is used to effect impedance matching. One of the configurations attains an axial ratio bandwidth (< 3 dB) of about 14% within the impedance matching band when the substrate thickness is about 0.2λ o .

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Circularly Polarized U-Slot Antenna

Cited by 232 publications

References 7 publications

Broadband CPW-Fed Circularly Polarized Antenna With an Irregular Slot for 2.45 GHZ Rfid Reader

Broadband CPW-Fed Circularly Polarized Antenna With an Irregular Slot for 2.45 GHZ Rfid Reader

Numerical Analysis of Slot Position of Rectangular U Slot Microstrip Patch Antenna

Design and Study of Wideband Single Feed Circularly Polarized Microstrip Antennas

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