Multiple resonances and polarisationof U-slot patch antenna

Clenet, Michel; Shafai, L.

doi:10.1049/el:19990087

Cited by 58 publications

(19 citation statements)

References 1 publication

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“…The proposed antennas are also suitable for sequential array design. By using sequential rotation technique, even wider AR bandwidth could be obtained [4][5][6].…”

Section: Resultsmentioning

confidence: 99%

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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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“…The proposed antennas are also suitable for sequential array design. By using sequential rotation technique, even wider AR bandwidth could be obtained [4][5][6].…”

Section: Resultsmentioning

confidence: 99%

“…Although many papers have been devoted to the U-slot and Lprobe patches in the last decade [1][2][3][4][5][6][7][8][9], the studies were concerned with linear polarization. There has been no systematic study of the application of these techniques to single feed circularly polarized (CP) patch antennas.…”

Section: Introductionmentioning

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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“…But the dominant polarisation in the first half is the x polarisation, and its increasing in the first half of passband -compared to the second half -causes in decrement in the y polarisation. Therefore this antenna such as the antenna in [6] has a polarisation switch that should be noticed in the application. While the average gain of symmetric U-slot patch antenna is about 7 dB [7], the 2 dB decreasing in radiation efficiency occurs with 33% reduction in the size of the antenna which can be useful in array applications to achieve high gain.…”

Section: The Far Field Resultsmentioning

confidence: 99%

A Practical Miniaturized U-Slot Patch Antenna With Enhanced Bandwidth

Khodaei¹,

Nourinia²,

Ghobadi³

2008

PIER B

123

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Abstract-In this paper, an asymmetric U-slot patch antenna with low probe diameter is presented. It will be shown that reduction in probe diameter causes in reduction in bandwidth. One of the characteristics of this antenna is keeping the bandwidth in 30% in spite of reduction in antenna size and use of low probe diameter compared to antenna presented in [1]. The presented antenna in this paper has been fabricated by pcb technique and tested. The far-field results have also been presented based on simulation and measurement. Although the antenna has high cross polarisation level, in the case of using circular polarisation, the use of this antenna can be recommended because of its reduced size, high impedance bandwidth, high total gain in spite of having low size, and ease of fabrication.

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“…In case of this type of antenna, the parameters of (11): q 1 , q 2 , p 1 , p 2 , p 12 , and q 12 , can be derived by comparing (11) and the determinant of system of linear equations given by (10).…”

Section: A Haneishi Circular Polarization Modelmentioning

confidence: 99%

Sensitivity analysis of a circularly polarized U-slot microstrip antenna

Gaffar

Choudhury

Zaman

et al. 2010

International Conference on Electrical &Amp; Computer Engineering (ICECE 2010)

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In this paper, sensitivity models for centre frequency and maximum radiated power of a rectangular microstrip antenna at φ = 0 plane using Effective Length Theory have been developed. A wide operating bandwidth for a single-layer coaxially fed microstrip antenna is obtained by cutting a U shaped slot on the metal patch. The sensitivity of perturbation of different truncated slot and feed position for a microstrip antenna is a novel concept. An approximate sensitivity model is derived here using perturbation and variational method and confirmed by modified Haneishi model and hybrid FEM/MoM solver. The proposed sensitivity models provide better approximations for calculating shift of centre frequency and maximum radiated power of the microstrip antenna.

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Multiple resonances and polarisationof U-slot patch antenna

Cited by 58 publications

References 1 publication

Design and Study of Wideband Single Feed Circularly Polarized Microstrip Antennas

Design and Study of Wideband Single Feed Circularly Polarized Microstrip Antennas

A Practical Miniaturized U-Slot Patch Antenna With Enhanced Bandwidth

Sensitivity analysis of a circularly polarized U-slot microstrip antenna

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