本研究提出一種可應用於數位電視/全球定位系統之雙頻帶偶極天線設計，且此天線結構具有兩個
非對稱性元件，使其與傳統的偶極天線設計非常不一樣。所提出之天線設計乃採用同軸探針作為饋入訊號方式，並利用在一長方形金屬貼片上嵌入一倒U 形狀的細槽帶及利用一長條微帶線來延伸接地面的長度的技巧來激發出三頻共振模態，並據此產生適合無線通訊使用之雙寬操作頻帶。經由適當的選擇上述結構之尺寸參數，所設計的天線經實驗量測得到VSWR<3 定義的阻抗頻寬分別為345 MHz(0.485-0.83 GHz)及77 MHz (1.168-1.245 GHz)，並具有良好之類偶極型天線輻射場型及在兩個可操作頻帶內的穩定、良好之天線增益。

The unconventional design of a dualband dipole antenna with two asymmetrical elements suitable for signal reception in DTV/GPS systems is presented. Triple-resonance of the proposed antenna fed by a probe is excited from embedding an inverted U-shaped slot into a rectangle patch and extending the dipole with an additional strip. By properly choosing the geometrical parameters of the designed antenna, dual operating bands with bandwidths of 345 MHz (0.485-0.83 GHz) and 77 MHz (1.168-1.245 GHz), defined by VSWR<3, and dipole-like radiation pattern have been measured. Also, a stable in-band antenna gain has been obtained.