Mixer for use in a microwave system

Details Mixer for use in a microwave system Mixer for use in a microwave system

1985-09-23

1987-04-28

Ng, Jin F.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455328, 455330, H04B 126

Patent

active

046619976

ABSTRACT:
A novel mixer of good noise performance for operation at microwave frequencies (e.g. the 22 GHz communications band) is disclosed. The mixer comprises a waveguide to which signals and local oscillations are coupled, and from which the intermediate frequency output is derived. The principal circuitry is provided on a metallized substrate set within the waveguide in a "finline" construction. The metallized substrate performs the essential functions of impedance matching the mixer to the source of signal and local oscillations, a bridge for isolating the signal port from local oscillations and for isolating the LO port from the signal, and means to adjust the application of signal and load to the mixer diodes for optimum signal conversion. The noise figure achieved is approximately 4 db at 22 GHz, and represents an improvement over known competitive designs.

REFERENCES:
patent: 4480336 (1984-10-01), Wong et al.
patent: 4553266 (1985-11-01), Bates et al.
"Ku-Band Front-End in Integrated Fin-Line Technique" by Begemann et al, 4-1980.

Affiliated with

Also associated with

Rating

Mixer for use in a microwave system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mixer for use in a microwave system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mixer for use in a microwave system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-481481