Invention Grant
- Patent Title: RF multiband transmitter with balun
- Patent Title (中): 射频多频段发射机
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Application No.: US12409894Application Date: 2009-03-24
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Publication No.: US08068795B2Publication Date: 2011-11-29
- Inventor: Amit D. Bavisi , Walter J. Grandfield , Darioush Keyvani , Mark A. Kirschenmann
- Applicant: Amit D. Bavisi , Walter J. Grandfield , Darioush Keyvani , Mark A. Kirschenmann
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agency: Hamilton & Terrile, LLP
- Agent Michael Rocco Cannatti
- Main IPC: H04B1/04
- IPC: H04B1/04
Abstract:
A multi-band RF transmitter circuit (30) for a wireless communication device combines a plurality of RF transmission blocks into a single transceiver integrated circuit which includes a shared broadband SVGA (32), a shared tunable balun (34), and an output switching network (38) at the output of the balun to support three different frequency bands. The outputs of the multi-band RF transmitter circuit are connected to separate external power amplifier circuits (42-44), where each power amplifier circuit generates an amplified signal for one of the plurality of predetermined frequency bands.
Public/Granted literature
- US20100248660A1 RF Multiband Transmitter with Balun Public/Granted day:2010-09-30
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