Invention Grant
- Patent Title: Radio frequency switch for suppressing intermodulation
- Patent Title (中): 用于抑制互调的射频开关
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Application No.: US13170593Application Date: 2011-06-28
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Publication No.: US08995944B2Publication Date: 2015-03-31
- Inventor: Joshua J. Caron
- Applicant: Joshua J. Caron
- Applicant Address: US NC Greensboro
- Assignee: RF Micro Devices, Inc.
- Current Assignee: RF Micro Devices, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H04B1/10
- IPC: H04B1/10 ; H04B1/48

Abstract:
A radio frequency (RF) switch adapted to reduce third order intermodulation (IM3) products generated as RF signals propagate through the RF switch is disclosed. The RF switch includes N semiconductor switch segments, and N−1 phase shift networks, individual ones of the N−1 phase shift networks being coupled between adjacent ones of the N semiconductor switch segments where N is a natural number greater than 1. In operation, when the RF switch is on, IM3 products generated by the RF switch propagating through the N−1 phase shift networks are phase shifted such that the IM3 products are at least partially canceled.
Public/Granted literature
- US20120146698A1 RADIO FREQUENCY SWITCH FOR SUPPRESSING INTERMODULATION Public/Granted day:2012-06-14
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