A circular CPW‐FED slot antenna for broadband circularly polarized radiation

Deng, I-Chung; Chen, Jinbo; Ke, Qing-Xiang; Chang, Jun-Rong; Chang, Woon-Fa; King, Yueh-Tsu

doi:10.1002/mop.22881

Cited by 34 publications

(22 citation statements)

References 5 publications

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“…Having various advantages of low radiation loss, less dispersion, and scope of easy integration with solid state devices, coplanar waveguide (CPW) feed becomes more attractive than microstrip feed . Therefore, CPW‐fed CP slot antenna have drawn more attraction recently . In , CP is obtained by etching a longitudinal slot at a middle point of a stair‐shaped slot.…”

Section: Introductionmentioning

confidence: 99%

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CPW‐fed broadband circularly polarized rectangular slot antenna with L‐shaped feed line and parasitic elements

Saini

Dwari

2015

Micro & Optical Tech Letters

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A new coplanner waveguide‐fed broadband circularly polarized (CP) rectangular slot antenna is proposed. Circular polarization (CP) is obtained using L‐shaped feed line protruded from the signal line and rectangle‐shaped parasitic element (PE). The CP bandwidth can be significantly enhanced by placing a strip adjacent to the rectangle‐shaped PE. By adjusting the length of the strip, the CP bandwidth is obtained as high as 48.28% (2.2–3.6 GHz) with axial ratio (AR) ≤ 3 dB. Impedance bandwidth of 63.97% (1.93–3.745 GHz) with VSWR ≤ 2 is achieved. The antenna has a small size of 60 × 50 mm2. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1788–1794, 2015

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Section: Introductionmentioning

confidence: 99%

“…While in , cross patch was placed in the slot to get CP radiation. Other wideband CP was achieved by protruding a metallic strip from the signal line of the feeding CPW in to slot . L‐shaped strip at the ground plane and vertical stub at the feed line were used in to generate CP.…”

Section: Introductionmentioning

confidence: 99%

CPW‐fed broadband circularly polarized rectangular slot antenna with L‐shaped feed line and parasitic elements

Saini

Dwari

2015

Micro & Optical Tech Letters

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“…Coplanar waveguide (CPW) fed wideband circularly polarized slot antennas have drawn more attraction over microstrip feed due to their various advantages such as low radiation loss, low dispersion, and scope of easy integration with solid state devices [1][2][3][4][5][6][7]. A dual-band circularly polarized slot antenna is proposed in [8].…”

Section: Introductionmentioning

confidence: 99%

Dual-Band Dual-Sense Circularly Polarized Asymmetric Slot Antenna With F-Shaped Feed Line and Parasitic Elements

Saini¹,

Bakariya²

2018

PIER M

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Abstract-A novel dual-band and dual-sense circularly polarized coplanar waveguide (CPW) fed planar antenna with an asymmetric rectangular slot is presented. An F-shaped feed line is protruded from the signal line into the slot. Circular polarization is obtained due to the F-shaped feed line and asymmetry in the slot. Axial ratio bandwidth is significantly enhanced by placing parasitic elements adjacent to the feedline. The antenna has a size of 63.5 × 55 mm 2 . The measured results agree well with simulation. The measured impedance bandwidths are 26.04% (1.57 GHz-2.04 GHz) for the lower band and 18.93% (2.87 GHz-3.47 GHz) for the upper band. The measured 3 dB axial ratio bandwidths of lower band and upper bands are 22.22% (1.6 GHz-2 GHz) and 10.53% (3.15 GHz-3.5 GHz), with respect to 1.8 GHz (RHCP) and 3.325 GHz (LHCP), respectively.

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“…As compared to microstrip antennas, printed slot antennas have the features of low‐quality factor, coplanar structure with ground plane, and bidirection radiation. Consequently, a considerable number of the CP designs for the slot antenna have been proposed , and moreover the comparisons among the antenna sizes of the previous deigns are given in . According to the comparison results, it is indicated that the design using a wide slot gives more CP operating bandwidth than that using a ring slot, but the former has a larger antenna size, ground plane included, than the latter.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized designs of circularly polarized slot antenna

Row

Lin

2014

Micro & Optical Tech Letters

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Designs of reducing the overall antenna size for a circularly polarized slot antenna are studied. The miniaturized design is based on a square‐ring slot antenna fed with an L‐shaped coupling strip, and it is performed by varying the slot shape and simultaneously cutting the ground plane. Two compact prototypes are implemented and measured. For the first one prototype, both the ring slot and ground plane have a narrow rectangular shape, and experimental results demonstrate that it can provide monopole‐like radiation as well as broadband circular polarization operation. As for the second one, its overall antenna dimensions are further reduced to be less than 0.1 λ02, and it has a 3‐dB‐axial‐ratio bandwidth of about 4%. For the two prototypes, processes of the miniaturized designs are shown, and details of the experimental results are given along with the simulated results carried out by HFSS. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1522–1526, 2014

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A circular CPW‐FED slot antenna for broadband circularly polarized radiation

Cited by 34 publications

References 5 publications

CPW‐fed broadband circularly polarized rectangular slot antenna with L‐shaped feed line and parasitic elements

CPW‐fed broadband circularly polarized rectangular slot antenna with L‐shaped feed line and parasitic elements

Dual-Band Dual-Sense Circularly Polarized Asymmetric Slot Antenna With F-Shaped Feed Line and Parasitic Elements

Miniaturized designs of circularly polarized slot antenna

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