A Wideband Circularly Polarized Filtering Array Antenna Using Dual-Layer Circular Cross Slotted Patch
- Publisher:
- IEEE
- Publication Type:
- Conference Proceeding
- Citation:
- 2024 18th European Conference on Antennas and Propagation (EuCAP), 2024, 00
- Issue Date:
- 2024-04-26
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| 1725966-Manual AM.pdf | Accepted version | 464.98 kB |
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The array element consists of a feeding structure designed as a 2 way power division with a 90 phase difference and a dual layer patch structure An aperture couple driven patch spatially placed between the parasitic patch and feeding structure is used to introduce magnetic coupling with parasitic patch for a resonant mode at high frequency and a radiation null Meanwhile four arc shaped patches fitted with four shorting via surround the driven patch to generate electric coupling with it It allows to achieve a resonant mode at low frequencies and a radiation null to improve the bandwidth Then a four way sequential rotation feed network is designed with the same amplitude and a 90 clockwise incremental phase which is fed a 2 2 element circularly polarized filtering array antenna The results demonstrate that the array achieves a 3 dB gain bandwidth of 22 9 and the axial ratio bandwidth of 22 0
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