Invention Grant
- Patent Title: Radio frequency transmit filter with integrated impedance matching network
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Application No.: US15640112Application Date: 2017-06-30
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Publication No.: US10243539B2Publication Date: 2019-03-26
- Inventor: James R. Costa , Neal Fenzi , Robert Hammond
- Applicant: Resonant Inc.
- Applicant Address: US CA Santa Barbara
- Assignee: Resonant Inc.
- Current Assignee: Resonant Inc.
- Current Assignee Address: US CA Santa Barbara
- Agency: SoCal IP Law Group LLP
- Agent John E. Gunther
- Main IPC: H04B1/10
- IPC: H04B1/10 ; H04B1/44 ; H03H9/64 ; H03H7/38 ; H04B1/38 ; H03H11/30 ; H04B1/04 ; H01Q1/50 ; H04L5/14
Abstract:
A transmit filter for a communications device includes a surface acoustic wave (SAW) band-pass filter configured to pass a transmit frequency band and a tunable transmitter impedance matching network in series. The tunable transmitter impedance matching network matches an input impedance of the SAW band-pass filter to the output impedance of a power amplifier over a portion of the transmit frequency band in response to a tuning input.
Public/Granted literature
- US20170302250A1 RADIO FREQUENCY TRANSMIT FILTER WITH INTEGRATED IMPEDANCE MATCHING NETWORK Public/Granted day:2017-10-19
Information query
