Symmetric-aperture antenna for broadband circular polarization

Nasimuddin; Zhi Ning Chen; Xianming Qing

doi:10.1109/TAP.2011.2163757

Symmetric-aperture antenna for broadband circular polarization

Nasimuddin^*, Zhi Ning Chen, Xianming Qing

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

70 Citations (Scopus)

Abstract

A novel symmetric-aperture antenna is proposed for broadband circularly polarized (CP) radiation using a coplanar waveguide (CPW) feed. The proposed antenna consists of a CPW-feed and a wide symmetric aperture along the diagonal axis. A symmetric-aperture consists of two diamond-shaped sections. The symmetric-aperture and CPW-feeding structure are fabricated on the same plane of a dielectric substrate. Wideband CP radiation is achieved by changing the arms of symmetric-aperture and stripline length. The measured bandwidths of 3-dB axial ratio (AR) and 10-dB return loss are around 68% (2.4-4.85 GHz) and 107% (1.6-5.25 GHz), respectively. The measured boresight gain is more than 3.0 dBic over the CP bandwidth. Overall antenna size is around 0.7 λ_o × 0.7 λ_o×0.019λ_o at 3.5 GHz.

Original language	English
Article number	5976400
Pages (from-to)	3932-3936
Number of pages	5
Journal	IEEE Transactions on Antennas and Propagation
Volume	59
Issue number	10
DOIs	https://doi.org/10.1109/TAP.2011.2163757
Publication status	Published - Oct 2011
Externally published	Yes

Keywords

Aperture antenna
broadband
circular polarization
circularly polarized slot antenna
coplanar waveguide feed
slot antenna

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10.1109/TAP.2011.2163757

Cite this

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title = "Symmetric-aperture antenna for broadband circular polarization",

abstract = "A novel symmetric-aperture antenna is proposed for broadband circularly polarized (CP) radiation using a coplanar waveguide (CPW) feed. The proposed antenna consists of a CPW-feed and a wide symmetric aperture along the diagonal axis. A symmetric-aperture consists of two diamond-shaped sections. The symmetric-aperture and CPW-feeding structure are fabricated on the same plane of a dielectric substrate. Wideband CP radiation is achieved by changing the arms of symmetric-aperture and stripline length. The measured bandwidths of 3-dB axial ratio (AR) and 10-dB return loss are around 68% (2.4-4.85 GHz) and 107% (1.6-5.25 GHz), respectively. The measured boresight gain is more than 3.0 dBic over the CP bandwidth. Overall antenna size is around 0.7 λo × 0.7 λo×0.019λo at 3.5 GHz.",

keywords = "Aperture antenna, broadband, circular polarization, circularly polarized slot antenna, coplanar waveguide feed, slot antenna",

author = "Nasimuddin and Chen, {Zhi Ning} and Xianming Qing",

year = "2011",

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doi = "10.1109/TAP.2011.2163757",

language = "English",

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AU - Nasimuddin,

AU - Chen, Zhi Ning

AU - Qing, Xianming

PY - 2011/10

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N2 - A novel symmetric-aperture antenna is proposed for broadband circularly polarized (CP) radiation using a coplanar waveguide (CPW) feed. The proposed antenna consists of a CPW-feed and a wide symmetric aperture along the diagonal axis. A symmetric-aperture consists of two diamond-shaped sections. The symmetric-aperture and CPW-feeding structure are fabricated on the same plane of a dielectric substrate. Wideband CP radiation is achieved by changing the arms of symmetric-aperture and stripline length. The measured bandwidths of 3-dB axial ratio (AR) and 10-dB return loss are around 68% (2.4-4.85 GHz) and 107% (1.6-5.25 GHz), respectively. The measured boresight gain is more than 3.0 dBic over the CP bandwidth. Overall antenna size is around 0.7 λo × 0.7 λo×0.019λo at 3.5 GHz.

AB - A novel symmetric-aperture antenna is proposed for broadband circularly polarized (CP) radiation using a coplanar waveguide (CPW) feed. The proposed antenna consists of a CPW-feed and a wide symmetric aperture along the diagonal axis. A symmetric-aperture consists of two diamond-shaped sections. The symmetric-aperture and CPW-feeding structure are fabricated on the same plane of a dielectric substrate. Wideband CP radiation is achieved by changing the arms of symmetric-aperture and stripline length. The measured bandwidths of 3-dB axial ratio (AR) and 10-dB return loss are around 68% (2.4-4.85 GHz) and 107% (1.6-5.25 GHz), respectively. The measured boresight gain is more than 3.0 dBic over the CP bandwidth. Overall antenna size is around 0.7 λo × 0.7 λo×0.019λo at 3.5 GHz.

KW - Aperture antenna

KW - broadband

KW - circular polarization

KW - circularly polarized slot antenna

KW - coplanar waveguide feed

KW - slot antenna

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ER -

Symmetric-aperture antenna for broadband circular polarization

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