Symmetric Odd Function Dual-Polarization Printed Broadband Directional Antenna
| Autor: | Kang-Ling Li, 李岡陵 |
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| Rok vydání: | 2012 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 100 This paper focuses on the design of dual-polarization broadband antenna. The broadband antenna structure utilized the symmetric odd function antenna structure with coplanar waveguide (CPW)-fed to obtain a 4:1 operating bandwidth. Use of low-cost FR4 material design a symmetric odd function broadband antenna which is stacked perpendicular, and the upper and lower interval of 15mm to achieve the purpose of polarization diversity, if the VSWR less than 3 as the standard, the two polarized antenna operational frequency range can not only individual to reach 1.5GHz to 6GHz, the isolation between the two polarized antenna can also be less than-15dB. The second type antenna structure is inherited the concept of the first dual-polarization broadband antenna. Use of two symmetric odd function reflection plate to stack into one and then design a new four-storey flat stacked dual-polarization broadband directional antenna. We used the idea of symmetric odd function, stacked structure and polarization diversity to achieve the dual-polarization broadband directional antenna design. The two polarized antenna operational frequency range also has a 4:1 bandwidth utilization, and the isolation is less than -15dB. The total volume of the purpose antenna is smaller than the traditional dual-polarization horn antenna and its size only 150 x 150 x 62 mm3, the antenna size reduction can enhance the spatial distance on the wireless communication measurement. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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