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公开(公告)号：US08324984B2
公开(公告)日：2012-12-04
申请号：US12917149
申请日：2010-11-01
IPC分类号： H03H7/46
CPC分类号： H03H7/463
摘要： A tunable duplexer using voltage-controlled varactors is presented. The center frequency, the pass band, and the stop band are each tunable to meet system requirements. A calibration circuit driving digital to analog converters produces the necessary voltages used in the resonant circuits. The tunable duplexer can be fabricated on a single silicon chip. On-chip transformers can be used to reduce the voltage level of signals in the filters to improve the linearity of the duplexer.
摘要翻译： 提出了使用压控变容二极管的可调谐双工器。 中心频率，通带和阻带均可调整，以满足系统要求。 驱动数模转换器的校准电路产生谐振电路中所需的电压。 可调谐双工器可以在单个硅芯片上制造。 片上变压器可用于降低滤波器中信号的电压电平，从而提高双工器的线性度。
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公开(公告)号：US20110043300A1
公开(公告)日：2011-02-24
申请号：US12917149
申请日：2010-11-01
IPC分类号： H03H7/12
CPC分类号： H03H7/463
摘要： A tunable duplexer using voltage-controlled varactors is presented. The center frequency, the pass band, and the stop band are each tunable to meet system requirements. A calibration circuit driving digital to analog converters produces the necessary voltages used in the resonant circuits. The tunable duplexer can be fabricated on a single silicon chip. On-chip transformers can be used to reduce the voltage level of signals in the filters to improve the linearity of the duplexer.
摘要翻译： 提出了使用压控变容二极管的可调谐双工器。 中心频率，通带和阻带均可调整，以满足系统要求。 驱动数模转换器的校准电路产生谐振电路中所需的电压。 可调谐双工器可以在单个硅芯片上制造。 片上变压器可用于降低滤波器中信号的电压电平，从而提高双工器的线性度。
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公开(公告)号：US07825745B1
公开(公告)日：2010-11-02
申请号：US11845054
申请日：2007-08-25
IPC分类号： H03H7/46
CPC分类号： H03H7/463
摘要： A tunable duplexer using voltage-controlled varactors is presented. The center frequency, the pass band, and the stop band are each tunable to meet system requirements. A calibration circuit driving digital to analog converters produces the necessary voltages used in the resonant circuits. The tunable duplexer can be fabricated on a single silicon chip. On-chip transformers can be used to reduce the voltage level of signals in the filters to improve the linearity of the duplexer.
摘要翻译： 提出了使用压控变容二极管的可调谐双工器。 中心频率，通带和阻带均可调整，以满足系统要求。 驱动数模转换器的校准电路产生谐振电路中所需的电压。 可调谐双工器可以在单个硅芯片上制造。 片上变压器可用于降低滤波器中信号的电压电平，从而提高双工器的线性度。
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