無線網路卡印刷天線暨低溫共燒陶瓷高頻轉接器與濾波器設計

Abstract

首先，本論文將會提出一種利用分叉結構以縮小天線尺寸之印刷單極天線結構，可做為筆記型電腦之無線網路卡的天線部分。其與傳統印刷單極天線相比較，除了尺寸縮小之外，天線輻射也比較接近全方向性。本論文的第二部分，將會設計低溫共燒陶瓷微帶線到層疊波導管之轉接設計，主要利用金屬柱將能量由微帶線饋入層疊波導管中，藉由適當設計此金屬柱之長度與位置，達到轉接目的。最後，本論文設計低溫共燒陶瓷層疊波導管電感耦合帶通濾波器

Firstly, this thesis proposes a new method to reduce antenna’s size. We use this method to design a printed monopole. Compare this novel printed monopole to traditional one .We find it has smaller size and more omni-directional pattern. The second part of this thesis is to design low temperature cofire ceramic (LTCC) transition between microstrip line and laminated waveguide. We utilize metal cylinders to feed laminated waveguide from microstrip line. We can design this metal cylinder’s length and position to improve transition’s performance. Finally this thesis design a LTCC inductor couple bandpass laminated waveguide filter.