A Ka-Band Circular Polarized Waveguide Slot Antenna with a Cross Iris
- Title
- A Ka-Band Circular Polarized Waveguide Slot Antenna with a Cross Iris
- Author
- 최재훈
- Keywords
- waveguide antenna; slot antenna; circular polarization; axial ratio enhancement
- Issue Date
- 2020-10
- Publisher
- MDPI
- Citation
- APPLIED SCIENCES-BASEL, v. 10, no. 19, article no. 6994, page. 1-15
- Abstract
- A Ka-band circularly polarized (CP) waveguide slot antenna with a cross iris is proposed. To achieve the CP characteristic (LHCP) in the antenna, a hexagonal shaped cavity is used. The impedance matching is improved by adjusting the sizes of the hexagonal cavity and a rectangular matching cavity. To enhance the axial ratio bandwidth, a cross iris is used with two arms of different lengths. From experimental results, the proposed antenna has a 3 dB axial ratio bandwidth of 6810 MHz (31.72 GHz-38.53 GHz). The -10 dB reflection coefficient bandwidth of the proposed antenna ranges from 31.51 GHz to 39.21 GHz (7700 MHz).
- URI
- https://www.mdpi.com/2076-3417/10/19/6994https://repository.hanyang.ac.kr/handle/20.500.11754/171927
- ISSN
- 2076-3417
- DOI
- 10.3390/app10196994
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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