Invention Grant
- Patent Title: Cross-coupled low noise amplifier for cellular applications
- Patent Title (中): 用于蜂窝应用的交叉耦合低噪声放大器
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Application No.: US12474021Application Date: 2009-05-28
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Publication No.: US07990216B2Publication Date: 2011-08-02
- Inventor: Yuyu Chang , Hooman Darabi
- Applicant: Yuyu Chang , Hooman Darabi
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Garlick Harrison & Markison
- Agent Shayne X. Short
- Main IPC: H03F3/45
- IPC: H03F3/45

Abstract:
Cross-coupled low noise amplifier for cellular applications. A circuitry implementation that includes two pairs of metal oxide semiconductor field-effect transistors (MOSFETs) (either N-type of P-type) operates as an LNA, which can be used within any of a wide variety of communication devices. In one embodiment, this design is particularly adaptable to cellular telephone applications. A majority of the elements are integrated within the design and need not be implemented off-chip, and this can provide for a reduction in area required by the circuitry. A very high output impedance is provided by using two transistors (implemented in a triple well configuration) with resistive source degeneration. A higher than typical power supply voltage can be employed (if desired) to accommodate the voltage drops of the resistors and transistors.
Public/Granted literature
- US20090237165A1 Cross-coupled low noise amplifier for cellular applications Public/Granted day:2009-09-24
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