RF front-end receiver

Details RF front-end receiver RF front-end receiver

2008-05-27

2008-05-27

Maung, Nay (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S323000, C455S333000, C455S313000, C455S189100, C455S324000

Reexamination Certificate

active

07379727

ABSTRACT:
An RF front-end receiver comprises a low noise amplifier and a local oscillator driver, which are connected to respective input ports of a mixer which comprises a first and second transistor with gates coupled to one output terminal, a third and fourth transistor with gates coupled to the other output terminal, a fifth and sixth transistor with gates coupled to respective output terminal of the local oscillator driver, the sources of the first and third transistors coupled to the drain of the fifth transistor, the sources of the second and fourth transistor coupled to the drain of the sixth transistor, the sources of the fifth and sixth transistor coupled to ground, the drains of the first and fourth transistor coupled to one output terminal of a mixer output port, and the drains of the second and third transistor coupled to the other output terminal of the mixer output port.

REFERENCES:
patent: 6466775 (2002-10-01), Franca-Neto
patent: 6531920 (2003-03-01), Ishihara
patent: 6952572 (2005-10-01), Wong et al.
patent: 7177620 (2007-02-01), Tsai et al.
patent: 2003/0114129 (2003-06-01), Jerng
patent: 2005/0266822 (2005-12-01), Shima et al.
patent: 0 853 376 (1998-07-01), None
patent: WO 002323 (2000-01-01), None
International Preliminary Report on Patentability for PCT/SE2003/001979; 3 pgs.

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