基于Co<sub></sub>2-Z铁氧体材料的DVB-H折叠手机天线

基于Co2-Z铁氧体材料的DVB-H折叠手机天线

摘要: 采用传统的固相反应法制得了一种低损耗的Z型铁氧体材料（Sr₁Ba_2-xBi_xCo_2+xFe₂₄O₄₁，其中x=0，0.15），基于此材料设计得到一近似全方向辐射模式，在470~702MHz频段平均增益大于-3dB，且在此频段的辐射效率为33.5%~67.3%的小型化天线，该天线完全满足DVB-H（数字视频广播手持终端传输技术）的应用。

Abstract: A low-loss Z-type hexaferrites (Sr₁Ba_2-xBi_xCo_2+xFe₂₄O₄₁ with x=0, 0.15) has been developed by means of the conventional solid-state reaction in this paper. The proposed antenna based on this material has an approximately omnidirectional radiation pattern and yields greater than -3dBi average gain in the band of 470 to 702MHz, radiation efficiency of the antenna is 33.5% to 63.7% in the band. These features are suitable for DVB-H (Digital Video Broadcasting-Handheld) applications.