Telecommunications – Receiver or analog modulated signal frequency converter – With wave collector
Patent
1994-12-23
1996-12-10
Pham, Chi H.
Telecommunications
Receiver or analog modulated signal frequency converter
With wave collector
455 32, 455325, 455333, H04B 116
Patent
active
055840647
ABSTRACT:
A horizontally polarized wave signal is amplified in low-noise by two first LNAs connected in series to each other. The resulting low-noise amplified signal is entered into a first high electron mobility transistor mixer via a first band-pass filter. The first high electron mobility transistor mixer converts the signal into an intermediate frequency signal based on local power fed from a local oscillator via a Y-type distribution circuit and a first directional filter, and provides the converted signal as an output thereof. Meanwhile, a vertically polarized wave signal is amplified in low-noise by two second LNAs connected in series to each other. The resulting low-noise amplified signal is entered into a second high electron mobility transistor mixer via a second band-pass filter. The second high electron mobility transistor mixer converts the signal into an intermediate frequency signal based on local power fed from the local oscillator via the Y-type distribution circuit and a second directional filter, and provides the converted signal as an output thereof.
REFERENCES:
patent: 5204984 (1993-04-01), Fujisaki et al.
patent: 5239685 (1993-08-01), Ude et al.
Pham Chi H.
Sharp Kabushiki Kaisha
LandOfFree
Converter circuit for satellite broadcasting receivers having mi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Converter circuit for satellite broadcasting receivers having mi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Converter circuit for satellite broadcasting receivers having mi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-432931