Three circle strength band-pass filter with an asymmetrical distribution of the damping to the three circles and with a controllable bandwidth

• 1. 带宽紧凑型可控UWB双频带通滤波器 [P] . 中国专利： CN105789769A . 2016-07-20
• 2. 带宽紧凑型可控UWB三频带通滤波器 [P] . 中国专利： CN105789767A . 2016-07-20
• 3. Device for controlling the bandwidth of a from coupled oscillation circles existing band-pass filter [P] . 德国专利： DE734124C . 1943-04-08

  机译： 用于从耦合的振荡圈控制带宽的装置现有的带通滤波器

• 4. From three oscillation circles existing band-pass filter with variable bandwidth [P] . 德国专利： DE708517C . 1941-07-23

  机译： 从三个振荡环中现有带宽可变的带通滤波器

• 5. Three circle strength high frequency band filter with a controllable bandwidth [P] . 德国专利： DE1093431B . 1960-11-24

  机译： 具有可控制带宽的三圈强度高频带滤波器

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