发明名称 Dual band coupled-line balanced-to-unbalanced bandpass filter
摘要 A dual band balun filter that includes a first coupled-line section pair provided with a first terminal; a second coupled-line section pair configured to be connected to the first coupled-line section pair, a third coupled-line section pair, and a fourth coupled-line section pair, respectively, and the fourth coupled-line section pair is provided with a second terminal; the third coupled-line section pair is provided with a transmission line and is connected to a fifth coupled-line section pair that is provided with a third terminal; and each of the first to fifth coupled-line section pairs is formed with partial coupled stepped impedance resonators (SIRs).
申请公布号 US7541888(B2) 申请公布日期 2009.06.02
申请号 US20070690393 申请日期 2007.03.23
申请人 THE CHINESE UNIVERSITY OF HONG KONG 发明人 WU KE-LI;YEUNG LAP KUN
分类号 H03H7/42;H01P3/08;H03H7/38 主分类号 H03H7/42
代理机构 代理人
主权项
地址