A novel microstrip antenna with L‐shaped slots for circularly polarized satellite applications

A novel compact design of a circularly polarized corner‐slotted microstrip antenna for satellite and Synthetic Aperture Radar applications is presented. A single probe feed is used to excite a single square patch with two L‐shaped slots added at the upper right corner and at the opposite lower left...

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Bibliographic Details
Published in:Microwave and optical technology letters 2020-02, Vol.62 (2), p.839-844
Main Authors: AboEl‐Hassan, May, Hussein, Khalid F., Awadalla, Kamal H.
Format: Article
Language:English
Subjects:
Antennas
Bandwidths
Circular polarization
microstrip antenna
Microstrip antennas
satellite applications
Space applications
Synthetic aperture radar
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Summary:A novel compact design of a circularly polarized corner‐slotted microstrip antenna for satellite and Synthetic Aperture Radar applications is presented. A single probe feed is used to excite a single square patch with two L‐shaped slots added at the upper right corner and at the opposite lower left corner (or at the other two corners) to achieve circular polarization (CP) radiation. The proposed antenna has a simple shape, straightforward fabrication, and low cost. The impedance bandwidth (10 dB return loss) is approximately 600 MHz at 8.1 GHz. An axial ratio bandwidth of 170 MHz is realized. The importance of the axial ratio 3 dB bandwidth is emphasized. In addition, an analysis for the direction of rotation of the CP is given. The experimental results have a reasonable agreement with the simulation.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.32083