標題: | 末端開路式雙頻零階共振天線與可調式多極化槽孔天線 Novel Dual-Band Open-Ended Zeroth-Order Resonant Antenna and Switchable Multi-polarization Slot Antenna |
作者: | 鄧恩 紀佩綾 Deng, En 電信工程研究所 |
關鍵字: | 零階;多極化;天線;zeroth;polarization;antenna |
公開日期: | 2017 |
摘要: | 本論文演示了兩種不同類型的天線,其中,第一種是擁有兩個頻段的零階共振天線,第二種則是擁有多重極化的天線。
前兩章為基本理論的介紹,第三章為一雙頻零階共振天線,利用複合式左右手的理論達到零階,藉由改變外端的接法達到雙頻,並使用CPW的方式饋入來增加頻寬,並將該結構實現於RO 5880 62mil基板以驗證得。
第四章為一可調式多極化天線,利用微帶線實現一個等分功率的網路,並饋入共平面槽孔天線中,藉由兩種模態形成圓極化,透過加入開關的方式,使其可以只透過一個埠達到四種極化-兩種水平和兩種圓極化。 In this thesis, two types of antenna are presented. Among these two types of antenna, one of them is the dual-band zeroth-order antenna. The second one is multi-polarization antenna. The first two chapters introduce the basic theory. In the third chapter, it is a dual-band zeroth-order antenna, by using the theory of composite right/left handed to be zeroth-order, and different from the regular circuit to dual-band. Using CPW to increase its bandwidth. After fabricating this antenna on Ro 5880 62mil, it shows that the theory is workable. In the fourth chapter, a multi-polarization antenna is synthesized by using microstrip line to make an equal power network and feed in a CPW slot antenna. Combining two different mode, we can get a circular polarization. With adding switches, we can get four polarizations -two linear polarizations and two circular polarizations. |
URI: | http://etd.lib.nctu.edu.tw/cdrfb3/record/nctu/#GT070360297 http://hdl.handle.net/11536/140259 |
顯示於類別: | 畢業論文 |