Dual‐Loop Antennas With a Branched Feed‐Line for Broadband Circular Polarisation
Using the method of moments, we first analyse reference and present dual‐loop antennas with a perturbation segment and branched feedline, respectively. The loop elements of each antenna are gradually rotated for an increased 3 dB axial ratio bandwidth. Analysis reveals that as the loop rotation angl...
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| Veröffentlicht in: | Electronics letters Jg. 61; H. 1 |
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| Hauptverfasser: | , , , |
| Format: | Journal Article |
| Sprache: | Englisch |
| Veröffentlicht: |
01.01.2025
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| ISSN: | 0013-5194, 1350-911X |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Using the method of moments, we first analyse reference and present dual‐loop antennas with a perturbation segment and branched feedline, respectively. The loop elements of each antenna are gradually rotated for an increased 3 dB axial ratio bandwidth. Analysis reveals that as the loop rotation angle increases, the bandwidths of the reference and present antennas reach 20% and 43%, respectively, twice and three times as broad as those of the corresponding antennas without the rotation. Next, we modify the present antenna using a sequential rotation technique and discuss the radiation characteristics. The simulated results are verified with experimental ones. |
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| ISSN: | 0013-5194 1350-911X |
| DOI: | 10.1049/ell2.70180 |