Invention Grant
- Patent Title: Programmable optimized band switching LNA for operation in multiple narrow-band frequency ranges
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Application No.: US15910924Application Date: 2018-03-02
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Publication No.: US10476453B2Publication Date: 2019-11-12
- Inventor: Emre Ayranci , Miles Sanner
- Applicant: pSemi Corporation
- Applicant Address: US CA San Diego
- Assignee: pSemi Corporation
- Current Assignee: pSemi Corporation
- Current Assignee Address: US CA San Diego
- Agency: Jaquez Land Greenhaus LLP
- Agent Bruce W. Greenhaus, Esq.
- Main IPC: H03F1/22
- IPC: H03F1/22 ; H03F3/191 ; H03F3/195 ; H03F1/02 ; H03H11/28 ; H04B1/16 ; H03H7/38 ; H03F1/56 ; H03F3/193 ; H03F3/72 ; H04B1/00

Abstract:
A front end circuit architecture that uses the same LNA in each of several frequency bands extending over a wide frequency range. In some embodiments, switched impedance circuits distributed throughout the front end circuit allow selection of the frequency response and impedances that are optimized for particular performance parameters targeted for a desired device characteristic. Such switched impedance circuits tune the output and input impedance match and adjust the gain of the LNA for specific operating frequencies and gain targets. In addition, adjustments to the bias of the LNA can be used to optimize performance trade-offs between the total direct current (DC) power dissipated versus radio frequency (RF) performance. By selecting appropriate impedances throughout the circuit using switched impedance circuits, the LNA can be selectively tuned to operate optimally at a selected bias for operation within selected frequency bands.
Public/Granted literature
- US20180358938A1 Programmable Optimized Band Switching LNA for Operation in Multiple Narrow-Band Frequency Ranges Public/Granted day:2018-12-13
Information query
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