A dual-band circular polarized CPW fed low-profile antenna for WLAN and X-band applications
In this work, a compact asymmetric CPW-fed monopole antenna is designed to operate at dual-band with dual circular polarization. The design comprises a rectangular patch with a semicircular disc-shaped parasitic element to achieve circularly polarized (CP) behavior. Additionally, a vertical notch is...
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Elsevier
2025-09-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025025356 |
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| author | Sridhar P Poonkuzhali R |
| author_facet | Sridhar P Poonkuzhali R |
| author_sort | Sridhar P |
| collection | DOAJ |
| description | In this work, a compact asymmetric CPW-fed monopole antenna is designed to operate at dual-band with dual circular polarization. The design comprises a rectangular patch with a semicircular disc-shaped parasitic element to achieve circularly polarized (CP) behavior. Additionally, a vertical notch is incorporated at the bottom left corner of the ground plane to generate a strong horizontal field component. On the left side ground plane, an inverted L-shaped stub is positioned vertically to enable dual-band operation. A dumbbell-shaped slot is etched at the bottom of the right-sided ground plane, and a corner stub extends at the top to support dual CP at both the frequencies. Furthermore, incorporating a U-shaped cut into the inverted L-shaped stub improves the CP resonance at the desired lower operating frequency. The proposed antenna shows an impedance bandwidth (IBW) of 4.38 GHz - 6.22 GHz for the lower band and 7.37 GHz - 11.78 GHz for the higher band, with an axial ratio bandwidth (ARBW) of 5.13 GHz - 5.67 GHz at the lower band and 9.95 GHz - 11.02 GHz at the higher band. The structure is built on an FR4 substrate with a relative permittivity of εr = 4.4, with an overall dimension of 0.43λ0×0.43λ0×0.02λ0, where λ0 represents the free-space wavelength at 5.2 GHz. This antenna achieves a peak gain of 3.55 dBi at 5.2 GHz and 4.97 dBi at 10.4 GHz, making it suitable for WLAN and X-band applications. |
| format | Article |
| id | doaj-art-3ee61566443c48028885a6df00dc1df0 |
| institution | DOAJ |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
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| spelling | doaj-art-3ee61566443c48028885a6df00dc1df02025-08-20T02:52:37ZengElsevierResults in Engineering2590-12302025-09-012710646610.1016/j.rineng.2025.106466A dual-band circular polarized CPW fed low-profile antenna for WLAN and X-band applicationsSridhar P0Poonkuzhali R1School of Electronics Engineering, Vellore Institute of Technology, Vellore, IndiaCorresponding author.; School of Electronics Engineering, Vellore Institute of Technology, Vellore, IndiaIn this work, a compact asymmetric CPW-fed monopole antenna is designed to operate at dual-band with dual circular polarization. The design comprises a rectangular patch with a semicircular disc-shaped parasitic element to achieve circularly polarized (CP) behavior. Additionally, a vertical notch is incorporated at the bottom left corner of the ground plane to generate a strong horizontal field component. On the left side ground plane, an inverted L-shaped stub is positioned vertically to enable dual-band operation. A dumbbell-shaped slot is etched at the bottom of the right-sided ground plane, and a corner stub extends at the top to support dual CP at both the frequencies. Furthermore, incorporating a U-shaped cut into the inverted L-shaped stub improves the CP resonance at the desired lower operating frequency. The proposed antenna shows an impedance bandwidth (IBW) of 4.38 GHz - 6.22 GHz for the lower band and 7.37 GHz - 11.78 GHz for the higher band, with an axial ratio bandwidth (ARBW) of 5.13 GHz - 5.67 GHz at the lower band and 9.95 GHz - 11.02 GHz at the higher band. The structure is built on an FR4 substrate with a relative permittivity of εr = 4.4, with an overall dimension of 0.43λ0×0.43λ0×0.02λ0, where λ0 represents the free-space wavelength at 5.2 GHz. This antenna achieves a peak gain of 3.55 dBi at 5.2 GHz and 4.97 dBi at 10.4 GHz, making it suitable for WLAN and X-band applications.http://www.sciencedirect.com/science/article/pii/S2590123025025356CPWCircular polarizationDual-bandWLAN and X-band |
| spellingShingle | Sridhar P Poonkuzhali R A dual-band circular polarized CPW fed low-profile antenna for WLAN and X-band applications Results in Engineering CPW Circular polarization Dual-band WLAN and X-band |
| title | A dual-band circular polarized CPW fed low-profile antenna for WLAN and X-band applications |
| title_full | A dual-band circular polarized CPW fed low-profile antenna for WLAN and X-band applications |
| title_fullStr | A dual-band circular polarized CPW fed low-profile antenna for WLAN and X-band applications |
| title_full_unstemmed | A dual-band circular polarized CPW fed low-profile antenna for WLAN and X-band applications |
| title_short | A dual-band circular polarized CPW fed low-profile antenna for WLAN and X-band applications |
| title_sort | dual band circular polarized cpw fed low profile antenna for wlan and x band applications |
| topic | CPW Circular polarization Dual-band WLAN and X-band |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025025356 |
| work_keys_str_mv | AT sridharp adualbandcircularpolarizedcpwfedlowprofileantennaforwlanandxbandapplications AT poonkuzhalir adualbandcircularpolarizedcpwfedlowprofileantennaforwlanandxbandapplications AT sridharp dualbandcircularpolarizedcpwfedlowprofileantennaforwlanandxbandapplications AT poonkuzhalir dualbandcircularpolarizedcpwfedlowprofileantennaforwlanandxbandapplications |