Frequency converter and radio communication apparatus

Details Frequency converter and radio communication apparatus Frequency converter and radio communication apparatus

2006-09-12

2006-09-12

Urban, Edward F. (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S307000, C455S311000

Reexamination Certificate

active

07107035

ABSTRACT:
A frequency converter comprises an impedance matching unit connected to a current switching stage and a transconductance amplifier stage. The impedance matching unit has an impedance for conjugate power match. For example, the impedance matching unit is a parallel resonant circuit that includes an inductor and a capacitor that are formed as an integrated circuit. Thus, the frequency converter that has high conversion gain and low noise is obtained.

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K. L. Fong, et al., Monolithic RF Active Mixer Design, IEEE Tranactions on Circuits and Systems-II: Analog and Digital Signal Processing. vol. 46, No. 3, Mar. 1999, pp. 231-239.

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