本文主要是使用低成本方便製作的印刷電路板，利用spiral-line和meander-line等兩種不同型式天線，設計並比較適用於數位音訊廣播之接收天線。由於數位音訊廣播(DAB)規劃的使用頻段為Band III(174–240 MHz) 及 L band (1452–1492 MHz)，本論文則是以頻段Band III(174–240 MHz)為研究範圍。
一開始本論文先使用高頻模擬軟體HFSS模擬天線行為，直到模擬接近本論文的需求後以印刷電路板製作天線硬體。首先設計spiral-line天線模式，其優點是天線尺寸較小但頻寬極窄，此結構並不適用於本論文的宗旨；接著設計meander-line天線模式，優點是可工作於全頻寬，但尺寸較先前spiral-line模式來的大。綜合多項考量本論文所提之meander-line天線為較佳設計。

The research is used by low cost and easy making PCB. To design and compare of utilizing two different kinds of Antenna which are spiral-line and meander-line in digital broadcast reception. The frequency specified by digital audio broadcast(DAB) is Band III (174-240 MHz),and L band (1452-1492 MHz).This research is focus on the design of a Band III antenna.
At the first beginning, this research is simulated the behavior of Antenna by using high frequency simulate software HFSS. Making Antenna is based on using PCB which is according to the acceptable result of simulate Antenna route. The advantage of designing the route of spiral-line Antenna is smaller dimension and the disadvantage is extreme narrow frequency .But this structure is not suitable. At the second step, the research is designed the Antenna route of meander-line. The advantage is wide range of frequency and the disadvantage is bigger dimension comparing to the pervious spiral-line experiment. In conclusion ,we have found out the meander-line is the best design in this research.

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