Frequency converter capable of reducing noise components in loca

Details Frequency converter capable of reducing noise components in loca Frequency converter capable of reducing noise components in loca

1996-02-12

1997-05-27

Nguyen, Matthew V.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

H04B 126

Patent

active

056342071

ABSTRACT:
A frequency converter includes a high-frequency signal input circuit for forming a high-frequency signal with bias voltage or current to output a bias-added high-frequency signal; a local oscillation signal input circuit having a first element for forming a local oscillation signal with bias voltage or current and an element for suppressing a noise component having a frequency near a frequency of multiple of even number of a local oscillation frequency to output a bias-added and noise suppressed local oscillation signal; and a multiplication circuit for multiplying the bias-added high-frequency signal and the bias-added and noise suppressed local oscillation signal. By the constitution, it is possible to convert the high-frequency signal into a desired frequency signal having low influence of noises having frequency near the frequency of multiple of even number especially zero or two of the local oscillation signal to thereby reasonably suppress gain and noise in the high-frequency amplifier and local oscillator and reducing a current consumption of a radio receiver.

REFERENCES:
patent: 4184120 (1980-01-01), Tehsirogi
patent: 4361910 (1982-11-01), Teller, Jr.
patent: 4369522 (1983-01-01), Cerny, Jr. et al.
patent: 4479259 (1984-10-01), Fenk
patent: 5113094 (1992-05-01), Grace et al.
patent: 5446923 (1995-08-01), Martinson et al.
patent: 5469120 (1995-11-01), Nguyen et al.
patent: 5534827 (1996-07-01), Yamaji
Christopher D. Hull and Robert G. Meyer, A Systematic Approach to the Analysis of Noise in Mixers, published in IEEE Transactions on Circuits & Systems, vol. 40, No. 12, Dec. 1993.

Affiliated with

Also associated with

Rating

Frequency converter capable of reducing noise components in loca does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency converter capable of reducing noise components in loca, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency converter capable of reducing noise components in loca will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2338488