Back to results
US 4,399,562 AGranted
Full balun mixer
AssigneeRockwell International Corporation
InventorBen R. Hallford
Life of this patent
Estimating the term…
Abstract
Microwave circuit layout structure is disclosed for a diode mixer frequency converter. Each mixer port is provided by balun circuitry, and the diodes are isolated from, and on the opposite side of the substrate from, the primary circuits of the baluns. Single and double sideband versions are disclosed, including various combinations of dual and single baluns and porting structure.
Claims16
A full balun mixer comprising:
- a dielectric substrate;
- first primary conductor means on the topside of said substrate;
- first secondary conductor means on the bottomside of said substrate juxtaposed below said first primary conductor means to interact therewith for balun field coupling;
- second primary conductor means on the topside of said substrate;
- second secondary conductor means comprising a dual balun including two pairs of balanced secondary conductors on the bottomside of said substrate juxtaposed below a common said second primary conductor means to interact therewith for balun field coupling;
- and
- a diode mixer on the bottomside of said substrate isolated from both said primary conductor means and interconnecting said first and second secondary conductor means for heterodyne modulation product signal generation, the field between each secondary pair applied across a separate diode of said mixer wherein said diode mixer includes a pair of diodes connected in series between balanced conductors of said first secondary conductor means, and wherein one conductor of each of said two pairs of balanced secondary conductors of said second secondary conductor means are connected in common to a point between said diodes.
4 more elements
Balun coupled microwave mixer circuit layout and structure comprising:
- a dielectric substrate;
- ground plane means on the bottomside of said substrate;
- a first primary conductor on the topside of said substrate;
- first and second secondary conductors on the bottomside of said substrate extending from said ground plane means towards each other to a separation gap therebetween and juxtaposed below said first primary conductor for interacting therewith to balun couple a field balanced between said first and second secondary conductors across said gap;
- second and third primary conductors on the topside of said substrate;
- secondary conductor means on the bottomside of said substrate for said second and third primary conductors to interact therewith for balun field coupling;
- and
- a diode quad mixer on the bottomside of said substrate isolated from said first, second and third primary conductors and interconnecting said first and second secondary conductors and said secondary conductor means for heterodyne modulation product signal generation.
5 more elements
Balun coupled microwave mixer circuit layout and structure comprising:
- a dielectric substrate;
- ground plane means on the bottomside of said substrate;
- a first primary conductor on the topside of said substrate;
- first and second secondary conductors on the bottomside of said substrate extending from said ground plane means towards each other to a separation gap therebetween and juxtaposed below said first primary conductor for interacting therewith to balun couple a field balanced between said first and second secondary conductors across said gap;
- a second primary conductor on the topside of said substrate;
- secondary conductor means on the bottomside of said substrate juxtaposed below said second primary conductor to interact therewith for balun field coupling;
- and
- a diode pair mixer having only two diodes on the bottomside of said substrate isolated from said first and second primary conductors and interconnecting said first and second secondary conductors and said secondary conductor means for heterodyne modulation product signal generation one end of each diode of said diode pair being connected commonly to said secondary conductor means.
5 more elements
Dependencies are inferred from the claim text.