An octagonal ultra-wideband double slit antenna for WiMAX and WLAN rejection
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Bhakkiyalakshmi Ramakrishnan
and
Vasanthi Murugiah Sivashanmugham
Abstract
This article proposes a dual band rejected double slits-based planar octagonal microstrip antenna for Ultra-Wideband (UWB) applications. The antenna built by an edge trimmed partial ground and an octagonal microstrip patch with a horizontal and an inclined rectangular slit. The slits are made to remove the interfering frequency bands WiMAX and WLAN from UWB band. The designed antenna without slits operates on the frequency range 2.78–10.78 GHz with a fractional bandwidth of 119% which includes the UWB frequency band 3.1–10.6 GHz. The antenna with diagonal inclined slit notches the band 4.4–5.83 GHz which excluded WLAN frequency range and shift the starting frequency of UWB band to the right from 2.78 to 3.26 GHz. The antenna with both horizontal and inclined slits further shifts the starting frequency from 3.26 to 3.619 GHz, eliminating the WiMAX band. The excluded bands show the VSWR value greater than 2 dBi whereas the rest of the band has less than 2 dBi. The proposed antenna results in nearly omnidirectional radiation pattern, 6.2 dBi peak gain and 85% radiation efficiency.
Funding source: No funding
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: No research funding.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Research Articles
- Ground plane and selective buried oxide based planar junctionless transistor
- Ultra wideband bandpass filters with specified relative bandwidth
- Reconfigurable bandstop filter using active frequency selective surface, design and fabrication
- 60 GHz beam-tilting coplanar slotted SIW antenna array
- Circularly polarized CPW fed MIMO/Diversity antenna for Wi-Fi and WLAN applications
- A wideband 4-port MIMO antenna supporting sub-6 GHz spectrum for 5G mobile terminals
- An octagonal ultra-wideband double slit antenna for WiMAX and WLAN rejection
- A wideband metamaterial cross polarizer conversion for C and X band applications
- Numerical modeling of electromagnetic scattering from complex shape object with coating
- An efficient adaptive modulation technique over realistic wireless communication channels based on distance and SINR
- Performance analysis of hybrid Fi-Wi network employing OCDMA based NG-PON
- Dependence of specific absorption rate and its distribution inside a homogeneous fruit model on frequency, angle of incidence, and wave polarization
