文章詳目資料
International Journal of Science and Engineering
加入收藏
下載文章
| 篇名 | High-selectivity Dual-bandpass Filter Using Coupled Lines |
|---|---|
| 卷期 | 4:2 |
| 作者 | Wang, Bo-han 、 Tang, Ching-wen |
| 頁次 | 013-016 |
| 出刊日期 | 201406 |
| DOI | 10.6159/IJSE.2014.(4-2).04 |
中文摘要
英文摘要
In this paper, a microstrip dual-band bandpass filter is presented. The mechanism of the dualband operation is shown as follows. Resonator modes are located to two passband by adjusting the even- and oddmode impedance. Transmission zeros are then appear on both sides of two passband skirts and in the rejection bands by adjusting the coupling coefficient of the shorted quarter-wavelength microstrip line. Additional transmission zeros can be obtained to improve the passband selectivity. For demonstration, a dual-band bandpass filter working at 0.8 and 2.2 GHz is designed and fabricated. The theoretical analysis and measurement are presented. The good agreement verifies the proposed method.