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Radio frequency (RF) and microwave filters represent a class of electronic filter, designed to operate on signals in the megahertz to gigahertz frequency ranges (medium frequency to extremely high frequency). This frequency range is the range used by most broadcast radio, television, wireless communication (cellphones, Wi-Fi, etc.), and thus most RF and microwave devices will include some kind of filtering on the signals transmitted or received. Such filters are commonly used as building blocks for duplexers and diplexers to combine or separate multiple frequency bands.

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  • Topfkreis (de)
  • RF and microwave filter (en)
  • 微波滤波器 (zh)
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  • Ein Topfkreis ist ein allseitig geschlossener koaxialer Leitungskreis, der sich wie ein Parallelschwingkreis verhält. Im Gegensatz zu einem Schwingkreis aus diskreten Bauteilen ist seine Resonanzfrequenz nicht eindeutig, da die Resonanzeigenschaft durch die Ausbildung von stehenden Wellen längs des Innenleiters zur Zylinderwandung verursacht wird. Der Topfkreis ist daher verwandt mit Gebilden wie abgestimmten Antennendrähten oder Lecherkreisen. (de)
  • Radio frequency (RF) and microwave filters represent a class of electronic filter, designed to operate on signals in the megahertz to gigahertz frequency ranges (medium frequency to extremely high frequency). This frequency range is the range used by most broadcast radio, television, wireless communication (cellphones, Wi-Fi, etc.), and thus most RF and microwave devices will include some kind of filtering on the signals transmitted or received. Such filters are commonly used as building blocks for duplexers and diplexers to combine or separate multiple frequency bands. (en)
  • 射頻(RF)和微波滤波器代表一类电子滤波器,旨在对兆赫兹至吉赫兹频率范围(中頻和極高頻)的信号进行操作的器件。该频率范围是大多数广播电台、电视、无线通信(手机、Wi-Fi等)使用的范围,因此大多数RF和微波设备需要对发送或接收的信号进行某种滤波。 这种滤波器通常用作双工器合并或分离多个频带的基础。 (zh)
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  • Ein Topfkreis ist ein allseitig geschlossener koaxialer Leitungskreis, der sich wie ein Parallelschwingkreis verhält. Im Gegensatz zu einem Schwingkreis aus diskreten Bauteilen ist seine Resonanzfrequenz nicht eindeutig, da die Resonanzeigenschaft durch die Ausbildung von stehenden Wellen längs des Innenleiters zur Zylinderwandung verursacht wird. Der Topfkreis ist daher verwandt mit Gebilden wie abgestimmten Antennendrähten oder Lecherkreisen. (de)
  • Radio frequency (RF) and microwave filters represent a class of electronic filter, designed to operate on signals in the megahertz to gigahertz frequency ranges (medium frequency to extremely high frequency). This frequency range is the range used by most broadcast radio, television, wireless communication (cellphones, Wi-Fi, etc.), and thus most RF and microwave devices will include some kind of filtering on the signals transmitted or received. Such filters are commonly used as building blocks for duplexers and diplexers to combine or separate multiple frequency bands. (en)
  • 射頻(RF)和微波滤波器代表一类电子滤波器,旨在对兆赫兹至吉赫兹频率范围(中頻和極高頻)的信号进行操作的器件。该频率范围是大多数广播电台、电视、无线通信(手机、Wi-Fi等)使用的范围,因此大多数RF和微波设备需要对发送或接收的信号进行某种滤波。 这种滤波器通常用作双工器合并或分离多个频带的基础。 (zh)
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