A method for improving filter performance and a filter thereof

• Main Author: ZHAO KUNLI
• Format: Patent
• Language: Chinese; English
• Published: 08.01.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE; WAVEGUIDES

The invention provides a method for improving the performance of a filter, the filter comprising a bare core; The bare core is provided with a bare core pad and a plurality of resonators connected with each other, each bare core pad is respectively connected with the nearest resonator through a lead wire; By varying the area of at least one of said leads, so as to adjust the frequency of the out-of-band transmission zero of the filter to a preset range, wherein the larger the lead area is, the larger the frequency value of the out-of-band rejection transmission zero at the high frequency on the right side of the filter passband is, and the smaller the lead area is, the smaller the frequency value of the out-of-band rejection transmission zero at the high frequency on the right side of thefilter passband is. 本发明提供种改善滤波器性能的方法，所述的滤波器包括裸芯；裸芯上设有裸芯焊盘和若干个彼此相连的谐振器，每个裸芯焊盘分别与最近的谐振器通过引线连接；通过改变至少根所述的引线的面积，从而调整滤波器带外传输零点频率到达预设范围，其中引线面积越大，滤波器通带外右侧的高频处的带外抑制传输零点的频率值越大，引线面积越小，滤波器通带外右侧的高频处的带外抑制传输零点的频率值越小。