Invention Grant
- Patent Title: Phase shifter and antenna including phase shifter
- Patent Title (中): 移相器和天线包括移相器
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Application No.: US12020147Application Date: 2008-01-25
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Publication No.: US07907096B2Publication Date: 2011-03-15
- Inventor: Igor E. Timofeev , Martin L. Zimmerman , Ai Xiangyang
- Applicant: Igor E. Timofeev , Martin L. Zimmerman , Ai Xiangyang
- Applicant Address: US NC Hickory
- Assignee: Andrew LLC
- Current Assignee: Andrew LLC
- Current Assignee Address: US NC Hickory
- Agency: Husch Blackwell LLP
- Main IPC: H01Q3/00
- IPC: H01Q3/00 ; H01P1/18

Abstract:
A phase shifter includes two or more conductive strips, an input line and a wiper coupled to both the input line and the conductive strips. Rotation of the wiper about a pivot point alters the path lengths between the input line and output ports or antenna elements connected to the conductive strips. The wiper is a multi-bladed wiper. Phase errors in multi-bladed wiper-type phase shifters are reduced. Arrangements for reduction of phase shifter size or increase in phase shift range are described.
Public/Granted literature
- US20090189826A1 Phase Shifter And Antenna Including Phase Shifter Public/Granted day:2009-07-30
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