Abstract
A design with wideband and circularly polarized radiation antenna from an open-slot antenna has been demonstrated in this paper. The proposed antenna, which consists of an open slot and an inverted-L strip feeding, provides a large bandwidth, which completely cover the Wimax (3.3–3.8 GHz) and WLAN (2.4–2.48 GHz) bands. The open slot is formed by an modified ground plane with a slit cut and monofilar spiral stubs employed, which fed by an asymmetrical inverted-L strip feedline using a via. As demonstrated, the CP operation was significantly improved by loading monofilar spiral stubs connected to the asymmetric feedline by means of a via. A parametric study of the key parameters is made and the mechanism for circular polarization is described. After optimization, the impedance bandwidth is approximately 3.78 GHz (2.12 to 5.9 GHz) and the 3 dB axial ratio bandwidth is approximately 2.75 GHz (2.2 to 4.95 GHz), which represent fractional bandwidths of approximately 94.3 % and 76.9 %, respectively.
Acknowledgment
This work is supported by the National Natural Science Foundation of China (Grant No. 61372034) and the Aeronautical Science Foundation of China (Grant No. 20140196001). The authors would also like to thank the China North Electronic Engineering Research Institute for the fabrication.
References
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Articles in the same Issue
- Frontmatter
- Design, Fabrication and Test of Modified Septum Antennas for Satellite Telecommunication
- Gain and Bandwidth Enhancement of Tetracuspid-shaped DRA Mounted with Conical Horn
- A Coplanar Waveguide Fed UWB Antenna using Embedded E-shaped Structure with WLAN Band-rejection
- Wideband Inverted-L Microstrip-via-Fed Circularly Polarized Antenna with Asymmetrical Ground for WLAN/Wimax Applications
- Design of Dual Band Dual Sense Circularly Polarized Wide Slot Antenna with C-shaped Radiator for Wireless Applications
- A Novel Triple-Band Dipole Antenna for WLAN/WiMAX/LTE Applications
- Novel Two-Dimensional CRLH TL and its Application on Tri-Band Omnidirectional Antenna
- Triple-band MIMO Dipole Antenna for LTE Access Points
- A Broadband Impedance-Matching Method for Microstrip Patch Antennas Based on the Bode-Fano Theory
- Design of a Compact Balanced Bandpass Filter based on CSRR-loaded Substrate Integrated Waveguide Structure
- An Efficient High-Frequency Method to Compute EM Scattering of a Target on Rough Surface
- Presenting a New Technique for Multi-Target Tracking in Inverse Synthetic Aperture Radar based on PHD Filter in the Presence of Clutters
Articles in the same Issue
- Frontmatter
- Design, Fabrication and Test of Modified Septum Antennas for Satellite Telecommunication
- Gain and Bandwidth Enhancement of Tetracuspid-shaped DRA Mounted with Conical Horn
- A Coplanar Waveguide Fed UWB Antenna using Embedded E-shaped Structure with WLAN Band-rejection
- Wideband Inverted-L Microstrip-via-Fed Circularly Polarized Antenna with Asymmetrical Ground for WLAN/Wimax Applications
- Design of Dual Band Dual Sense Circularly Polarized Wide Slot Antenna with C-shaped Radiator for Wireless Applications
- A Novel Triple-Band Dipole Antenna for WLAN/WiMAX/LTE Applications
- Novel Two-Dimensional CRLH TL and its Application on Tri-Band Omnidirectional Antenna
- Triple-band MIMO Dipole Antenna for LTE Access Points
- A Broadband Impedance-Matching Method for Microstrip Patch Antennas Based on the Bode-Fano Theory
- Design of a Compact Balanced Bandpass Filter based on CSRR-loaded Substrate Integrated Waveguide Structure
- An Efficient High-Frequency Method to Compute EM Scattering of a Target on Rough Surface
- Presenting a New Technique for Multi-Target Tracking in Inverse Synthetic Aperture Radar based on PHD Filter in the Presence of Clutters