Telecommunications – Receiver or analog modulated signal frequency converter – With particular receiver circuit
Reexamination Certificate
2005-02-01
2005-02-01
Vo, Nguyen T. (Department: 2685)
Telecommunications
Receiver or analog modulated signal frequency converter
With particular receiver circuit
C455S333000, C455S326000, C327S359000
Reexamination Certificate
active
06850753
ABSTRACT:
A radio frequency front-end receiver includes a single stage low noise amplifier connected with a resistor array and a capacitor array, and a Gilbert-type mixer connected with a PMOS transconductance stage, an inductor and a serially connected current source. The resistor array enables the adjustment of the power gain of the low noise amplifier. The capacitor array tunes the low noise amplifier so that the maximum power gain is at the desired operating frequency. The PMOS transconductance stage reduces the power consumption of the mixer. The inductor increases the impedance and the current source improves the common-mode rejection of the mixer.
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patent: 6545534 (2003-04-01), Mehr
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Chen David Jan-Chia
Lai Meng-Hsiang
Liu Zhen-Chuan
Zhang Zhao-Feng
Le Nhan T.
MuChip Co., Ltd
Vo Nguyen T.
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