一種新穎的樹狀分形超寬帶天線
doi: 10.11999/JEIT140816
基金項目:
電子信息系統(tǒng)復雜電磁環(huán)境效應國家重點實驗室開放課題基金(CEMEE2014Z0102B)和國家自然科學基金(61001002)資助課題
A Novel Ultra-wideband Fractal Tree-shape Antenna
-
摘要: 該文設計一種新穎的樹狀分形超寬帶天線，該天線采用梯形結(jié)構(gòu)的有限接地面。增加樹狀分形結(jié)構(gòu)的迭代次數(shù)和優(yōu)化有限接地面的形狀可以使天線獲得良好的阻抗匹配，進而實現(xiàn)天線的超寬帶性能。該天線的工作頻帶為4.2~17.5 GHz(相對帶寬為122.6%)，天線的電尺寸為0.350.35，可應用于C波段、X波段、Ku波段和超寬帶(UWB)波段通信，具有廣泛的應用前景。實測結(jié)果和仿真結(jié)果吻合，證明了該天線的有效性。Abstract: An ultra-wideband fractal antenna is proposed, which has an isosceles trapezoid ground-plane. Increasing fractal iterations and optimizing ground-plane shape can achieve a better impedance matching so as to realize Ultra-WideBand (UWB) antenna performance. The presented fractal antenna offers a -10 dB return loss bandwidth in the range of 4.2 to 17.5 GHz (relative band is 122.6%) with electrical dimension of 0.350.35. Thus, this type of antenna is suitable for C, X, Ku and UWB band communications, which may have a wide application prospect. The measured results fit well with the simulation results, and the effectiveness is validated using the measured results.
-
Key words:
- Fractal antenna /
- Ultra WideBand (UWB) /
- Impedance matching /
- Tree-shape antenna
-
計量
- 文章訪問數(shù): 2328
- HTML全文瀏覽量: 166
- PDF下載量: 1204
- 被引次數(shù): 0
下載:
