Invention Application
- Patent Title: NARROW BAND RF FILTER CIRCUITS, DEVICES AND PROCESSES USING IMPEDANCE TRANSLATION
- Patent Title (中): 窄带滤波电路,使用阻抗转换的设备和过程
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Application No.: US12757739Application Date: 2010-04-09
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Publication No.: US20110207420A1Publication Date: 2011-08-25
- Inventor: Gireesh Rajendran , Ashish Lachhwani , Rakesh Kumar
- Applicant: Gireesh Rajendran , Ashish Lachhwani , Rakesh Kumar
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Priority: IN468/CHE/2010 20100223
- Main IPC: H04B1/04
- IPC: H04B1/04 ; G06G7/12 ; H04B1/10

Abstract:
An active filter circuit includes an inductance-capacitance (LC) circuit (110) for wireless frequency input, a bi-directional mixer (120) and a filter impedance (130) series-coupled across at least part of the LC circuit (110), and another mixer (420) coupled to at least some portion of the LC circuit. Other circuits, processes, receivers, transmitters and transceivers are disclosed.
Public/Granted literature
- US08391819B2 Narrow band RF filter circuits, devices and processes using impedance translation Public/Granted day:2013-03-05
Information query