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    • 5. 发明公开
    • 가변 공진기, 가변 필터, 전기회로 장치
    • 可变谐振器,TUNABLE滤波器和电路设备
    • KR1020080078566A
    • 2008-08-27
    • KR1020080015657
    • 2008-02-21
    • 가부시키가이샤 엔.티.티.도코모
    • 가와이구니히로오카자키히로시나라하시쇼이치
    • H03B5/18
    • H01P1/2039H01P1/20381H01P7/088
    • A variable resonator, a tunable filter and an electric circuit device are provided to vary a resonant frequency independently of the change of a bandwidth by varying the reactance value of a variable reactance unit. A variable resonator includes a line part(902), a ground conductor, at least two switches(903), and at least three variable reactance units(102). One or a plurality of lines is or are formed in a ring shape on the line part. The variable reactance units vary reactance values. One end of each switch is electrically coupled to respectively different parts of the line part. The other end of each switch is electrically coupled to the ground conductor. Each switch converts electrical connection/non-connection of the line part and the ground conductor. Each variable reactance unit is electrically coupled to the line part at predetermined intervals based on the electrical length of the resonant frequency.
    • 提供可变谐振器,可调滤波器和电路装置,以通过改变可变电抗单元的电抗值来独立于​​带宽的变化来改变谐振频率。 可变谐振器包括线路部分(902),接地导体,至少两个开关(903)和至少三个可变电抗单元(102)。 一条或多条线在线部分上形成或形成为环形。 可变电抗单元改变电抗值。 每个开关的一端电连接到线路部分的不同部分。 每个开关的另一端电耦合到接地导体。 每个开关转换线路部分和接地导体的电气连接/非连接。 每个可变电抗单元基于谐振频率的电长度以预定的间隔电耦合到线路部分。
    • 9. 发明公开
    • 가변 공진기, 대역폭 가변 필터, 전기회로 장치
    • 可变谐振器,可变带宽滤波器和电路设备
    • KR1020080023146A
    • 2008-03-12
    • KR1020070089923
    • 2007-09-05
    • 가부시키가이샤 엔.티.티.도코모
    • 가와이구니히로오카자키히로시나라하시쇼이치
    • H01P7/08H01P1/203
    • H01P1/203H01P1/20363H01P1/20381H01P7/088
    • A variable resonator, a variable bandwidth filter, and an electric circuit device are provided to suppress a loss of a passband of signals in spite of composing a filter by using a circuit breaker with a high loss by suppressing an inserting loss due to coupling of the variable resonator. A variable resonator(20) includes a ring-shaped conductor line(2) and a plurality of first circuit breakers(3). The ring-shaped conductor line is installed on a dielectric substrate and has a circumferential length which is one wavelength or an integral multiple thereof in a resonance frequency. One ends of the first circuit breakers are electrically connected to different parts of the ring-shaped conductor line respectively. The other ends of the first circuit breakers are electrically connected to an earthing conductor formed on the dielectric substrate. The first circuit breaker converts electric connection/disconnection of the earthing conductor and the ring-shaped conductor.
    • 提供可变谐振器,可变带宽滤波器和电路装置,以便通过使用具有高损耗的断路器来组合滤波器来抑制信号的通带的损失,通过抑制由于 可变谐振器。 可变谐振器(20)包括环形导线(2)和多个第一断路器(3)。 环状导体线安装在电介质基板上,其周向长度为谐振频率的一个波长或整数倍。 第一断路器的一端分别电连接到环形导线的不同部分。 第一断路器的另一端电连接到形成在电介质基片上的接地导体。 第一个断路器转换接地导体和环形导体的电连接/断开。