发明授权
- 专利标题： Automatic RC/CR quadrature network
- 专利标题（中）： 自动RC / CR正交网络
-
申请号： US12446743申请日： 2007-10-23
-
公开(公告)号： US08269543B2公开(公告)日： 2012-09-18
- 发明人: Andrew M. Teetzel
- 申请人： Andrew M. Teetzel
- 代理机构： Stainbrook & Stainbrook, LLP
- 代理商 Craig M. Stainbrook
- 国际申请： PCT/US2007/082294 WO 20071023
- 国际公布： WO2008/052008 WO 20080502
- 主分类号： H03H11/16
- IPC分类号： H03H11/16
摘要：
A stabilized quadrature RC/CR phase shifting network for generating quadrature RF and microwave signals. The network uses offset biasing of postamplifiers following the phaseshifter to fine tune quadrature-phase, and further uses an output quadrature-phase detector to stabilize quadrature-phase with negative feedback by using the quadrature-phase error signal to drive the quadrature-phase fine tuning control. In an alternative embodiment, the stability of quadrature-phase can be enhanced without the output quadrature-phase detector by making the quadrature-phase fine tuning control dependent upon the amplitude-difference negative feedback error signal.
公开/授权文献
- US20100090740A1 AUTOMATIC RC/CR QUADRATURE NETWORK 公开/授权日：2010-04-15
信息查询
