| A Novel Broadband Horn Antenna with Quadruple-Ridged Waveguide and Dielectric Lens |
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Kee-Oh Lee, Dong-Chul Park |
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2Chungnam National University |
| 4중 릿지 도파관과 렌즈를 이용한 새로운 광대역 혼 안테나 |
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이기오, 박동철 |
1국방과학연구소
2충남대학교 |
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| Abstract |
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In this paper, a design method of broadband horn antenna having 3:1 bandwidth and multiple polarization characteristics is proposed. The feeding section of the antenna adopts quadruple-ridged waveguide type for broadband and multiple polarization characteristics of the antenna. By inserting a shorting bar in the cavity structure with a semi-sphere type back short, the return loss at the feeding section was minimized. A corrugated dielectric lens is designed for phase compensation and lens-surface matching at the antenna aperture, which improves the antenna beam pattern. The validity of the design method is verified by indicating the measured data of the antenna. |
| Key Words:
Broadband Horn Antenna, Quadruple Ridged Waveguide, Multiple Polarization, Dielectric Lens |
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