Invention Grant
- Patent Title: Enhanced transformer output demultiplexing method (ETODEM)
- Patent Title (中): 增强变压器输出解复用方法(ETODEM)
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Application No.: US13368567Application Date: 2012-02-08
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Publication No.: US08604874B2Publication Date: 2013-12-10
- Inventor: Jeppe Korshøj Bendixen
- Applicant: Jeppe Korshøj Bendixen
- 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: H03F3/68
- IPC: H03F3/68

Abstract:
An asymmetrical transformer output demultiplexing (ATODEM) circuit is disclosed. The ATODEM circuit of the present disclosure includes N input windings, wherein N is a natural number. Each of the N input windings have input terminals that couple to output terminals of N PAs. The ATODEM further includes M output ports wherein M is a natural number, each of the M output ports having N series coupled windings coupled between a load terminal and a return terminal. The physical attributes of the N input windings, and the N series coupled windings of the M output ports are asymmetrical such that in an Nth operation mode an Nth PA first-load line impedance matches an output impedance of an Nth PA coupled to the input terminals.
Public/Granted literature
- US20120200356A1 ENHANCED TRANSFORMER OUTPUT DEMULTIPLEXING METHOD (ETODEM) Public/Granted day:2012-08-09
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