公开(公告)号：US09705537B1

公开(公告)日：2017-07-11

申请号：US12563679

申请日：2009-09-21

申请人： Ruediger Bauder ,  Nadim Khlat ,  Todd Gillenwater ,  Bob Sowell

发明人： Ruediger Bauder ,  Nadim Khlat ,  Todd Gillenwater ,  Bob Sowell

IPC分类号： H04B1/10 ,  H04B1/16 ,  H04B1/04

CPC分类号： H04B1/0458 ,  H04B1/0053 ,  H04B1/0064 ,  H04B1/16

摘要： Embodiments of the present disclosure relate to a multi-mode RF system, which is capable of transmitting and receiving RF signals using any of multiple RF communications bands. The multi-mode RF system may integrate RF band specific bandpass filters and low noise amplifiers (LNAs) into a single front-end module, such that each filter and amplifier pair provide selection and gain for at least one RF communications band. Outputs of the LNAs may be combined to provide one or more common signals to a transceiver module, which processes baseband signals associated with the RF communications bands. By integrating the filters and amplifiers into a single module, the filters and amplifiers may be closely coupled to one another, thereby supporting short signal paths between the filters and amplifiers, and having impedances high enough to provide good filter selectivity.

公开(公告)号：US08680947B1

公开(公告)日：2014-03-25

申请号：US12843574

申请日：2010-07-26

申请人： Julio Costa ,  Joshua J. Caron ,  Todd Gillenwater

发明人： Julio Costa ,  Joshua J. Caron ,  Todd Gillenwater

IPC分类号： H03H7/01 ,  H03H9/46 ,  H01P1/20

CPC分类号： H01P1/213 ,  H03H7/465 ,  H03H9/706 ,  H03H9/725 ,  H03H2210/012 ,  H03H2210/025 ,  H03H2210/026 ,  H03H2210/033 ,  H03H2210/036 ,  H03H2250/00

摘要： The present disclosure relates to a passive multi-band duplexer having a first bandpass filter and a second bandpass filter. The first bandpass filter includes a first group of sub-band bandpass filters, a first switching circuit, and a first tunable LC bandpass filter. Similarly, the second bandpass filter includes a second group of sub-band bandpass filters, a second switching circuit, and a second tunable LC bandpass filter. A first band of the passive multi-band duplexer, such as a transmit band, is chosen by selecting one of the first group of sub-band bandpass filters and tuning the first tunable LC bandpass filter to the first band. Similarly, a second band of the passive multi-band duplexer, such as a receive band, is chosen by selecting one of the second group of sub-band bandpass filters and tuning the second tunable LC bandpass filter to the second band.

摘要翻译： 本公开涉及具有第一带通滤波器和第二带通滤波器的无源多频双工器。 第一带通滤波器包括第一组子带通滤波器，第一开关电路和第一可调谐LC带通滤波器。 类似地，第二带通滤波器包括第二组子带通滤波器，第二开关电路和第二可调谐LC带通滤波器。 通过选择第一组子带通滤波器之一并将第一可调谐LC带通滤波器调谐到第一频带来选择无源多频双工器的第一频带，例如发射频带。 类似地，通过选择第二组子带通滤波器之一并将第二可调谐LC带通滤波器调谐到第二频带来选择诸如接收频带的无源多频双工器的第二频带。

公开(公告)号：US20110299432A1

公开(公告)日：2011-12-08

申请号：US12959512

申请日：2010-12-03

申请人： Joshua J. Caron ,  Julio Costa ,  Todd Gillenwater

发明人： Joshua J. Caron ,  Julio Costa ,  Todd Gillenwater

IPC分类号： H04W4/00

CPC分类号： H04B1/52

摘要： Embodiments disclosed herein relate to programmable duplexers. The frequency pass band of the programmable duplexer is changed according to a selection of a channel-pair selection to control or maximize the transition band between the receiver path and the transmitter path. The programmable duplexer permits selections of desired pass bands without the need for multiple duplexer filters. As an additional advantage, the transmission band requirements become less sensitive to manufacturing tolerances and temperature variations.

摘要翻译： 本文公开的实施例涉及可编程双工器。 可编程双工器的频带根据通道对选择的选择而改变，以控制或最大化接收机路径与发射机路径之间的过渡频带。 可编程双工器允许选择所需的通带，而不需要多个双工器滤波器。 作为额外的优点，传输带要求对于制造公差和温度变化的敏感度降低。

公开(公告)号：US08838045B2

公开(公告)日：2014-09-16

申请号：US12959512

申请日：2010-12-03

申请人： Joshua J. Caron ,  Julio Costa ,  Todd Gillenwater

发明人： Joshua J. Caron ,  Julio Costa ,  Todd Gillenwater

IPC分类号： H04B1/44 ,  H04B1/04 ,  H04B1/18 ,  H04B1/52

CPC分类号： H04B1/52

摘要： Embodiments disclosed herein relate to programmable duplexers. The frequency pass band of the programmable duplexer is changed according to a selection of a channel-pair selection to control or maximize the transition band between the receiver path and the transmitter path. The programmable duplexer permits selections of desired pass bands without the need for multiple duplexer filters. As an additional advantage, the transmission band requirements become less sensitive to manufacturing tolerances and temperature variations.

摘要翻译： 本文公开的实施例涉及可编程双工器。 可编程双工器的频带根据通道对选择的选择而改变，以控制或最大化接收机路径与发射机路径之间的过渡频带。 可编程双工器允许选择所需的通带，而不需要多个双工器滤波器。 作为额外的优点，传输带要求对于制造公差和温度变化的敏感度降低。