公开(公告)号：KR100662550B1

公开(公告)日：2006-12-28

申请号：KR1020050088525

申请日：2005-09-23

Applicant: (주)파트론

Inventor： 김덕현 ,  이선희 ,  정명숙

IPC: H01P1/20

Abstract: A dual band pass filter and a band stop filter are provided to simplify configuration of the band pass and band stop filters and to improve skirt characteristics by using a duplexer or a diplexer instead of a matching circuit. A dual band pass filter includes an input terminal(IN), a duplexer(200), a first matching circuit(210), a second matching circuit(220), and an output terminal(OUT). An external signal is received through the input terminal. The duplexer is connected to the input terminal to receive the signal from the input terminal. The duplexer has two pass bands. The first matching circuit is connected to a first output terminal of the duplexer. The second matching circuit is connected to a second output terminal of the duplexer. The output terminal couples the output terminal from the first matching circuit with the output terminal of the second matching circuit. The output terminal outputs the signal from the output terminals of the first and second matching circuits.

Abstract translation: 提供双带通滤波器和带阻滤波器以简化带通滤波器和带阻滤波器的配置，并通过使用双工器或双工器而不是匹配电路来改善裙部特性。 双带通滤波器包括输入端（IN），双工器（200），第一匹配电路（210），第二匹配电路（220）和输出端（OUT）。 通过输入端子接收外部信号。 双工器连接到输入端子以接收来自输入端子的信号。 双工器有两个通带。 第一匹配电路连接到双工器的第一输出端子。 第二匹配电路连接到双工器的第二输出端子。 输出端子将来自第一匹配电路的输出端子与第二匹配电路的输出端子耦合。 输出端输出来自第一和第二匹配电路的输出端的信号。