Invention Grant
- Patent Title: System and method for a multi-band transmitter
- Patent Title (中): 多波段发射机的系统和方法
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Application No.: US13207786Application Date: 2011-08-11
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Publication No.: US08447246B2Publication Date: 2013-05-21
- Inventor: Omid Oliaei , David Newman , Benjamin Gilsdorf , Patrick L. Rakers
- Applicant: Omid Oliaei , David Newman , Benjamin Gilsdorf , Patrick L. Rakers
- Applicant Address: JP Yokohama-shi
- Assignee: Fujitsu Semiconductor Limited
- Current Assignee: Fujitsu Semiconductor Limited
- Current Assignee Address: JP Yokohama-shi
- Agency: Baker Botts L.L.P.
- Main IPC: H04B1/04
- IPC: H04B1/04

Abstract:
In accordance with some embodiments of the present disclosure, a multi-band transmitter comprises a plurality of band paths with each band path configured for a different frequency range. Each band path comprises a modulator configured to modulate a data signal onto a carrier signal associated with the frequency range of the band path to generate a radio frequency (RF) signal associated with the band path and frequency range of the band path. Each band path also comprises a step-down balun that includes an input coil configured to receive the RF signal from the modulator. Each band path further comprises a tuner configured to tune the input coil to the frequency range of the band path. The tuner is also configured to compensate for off-state conduction of switches of the tuner to reduce non-linear tuning effects of the balun associated with the off-state conduction.
Public/Granted literature
- US20130039438A1 SYSTEM AND METHOD FOR A MULTI-BAND TRANSMITTER Public/Granted day:2013-02-14
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