US4541124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave mixer
Assignee: Thales SA
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Filing: 1983-06-03
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Granted: 1985-09-10
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Expires: 2003-06-03
Abstract
Abstract The mixer comprises two parallel conductors placed on each side of a substrate, two diodes mounted in series between the first ends of the two conductors, an incident-wave input connected between the second conductor-end located on the second face of the substrate and a ground line located on the first face, a mixing-wave input connected to means for applying between the ends of each diode an electric field produced by the mixing wave, and a mixed-wave output connected between at least one end of a diode and the ground line. The end of the conductor of the two-wire line is left free and electrically isolated from the ground line by means of a gap.
Inventors
- 👤 Clement F. Lacour
- 👤 Yannick Latouche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:27
CPC Classifications
H; H03; H03D; H03D9/00; H03D9/06; H03D9/0608; H03D9/0633; H01; H01P; H01P5/00; H01P5/08; H01P5/10; H03D7/00; H03D7/14; H03D7/1408
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
236 words
A microwave mixer for producing a mixed wave from an incident wave and a mixing wave, comprising: a dielectric substrate having a first and a second end, and a first and a second face in parallel; a ground strip line conductor located on the periphery of said first face; a first strip conductor, having a first extremity and a second extremity, located on said first face near said first end so as to define a gap between said ground strip line conductor and said first extremity of said first strip conductor; a second strip conductor, having a first extremity and a second extremity, located on said second face at said first end so as to be substantially parallel with said first strip conductor, whereby said incident wave is applied between said first extremity of said second strip conductor and said ground strip line conductor; first and second series connected diodes, each having an anode and a cathode, said anode of said first diode being connected to said second extremity of said second strip conductor, and said cathode of said second diode being connected to said second extremity of said first strip conductor; means for applying an electric field produced by said mixing wave between said anode of said first diode and said cathode of said second diode; and output means, connected between said first diode anode and said second diode cathode, for providing said mixed wave.
Claim 2
Dependent Claim
236 words
A microwave mixer for producing a mixed wave from an incident wave and a mixing wave, comprising: a dielectric substrate having a first and a second end, and a first and a second face in parallel; a ground strip line conductor located on the periphery of said first face; a first strip conductor, having a first extremity and a second extremity, located on said first face near said first end so as to define a gap between said ground strip line conductor and said first extremity of said first strip conductor; a second strip conductor, having a first extremity and a second extremity, located on said second face at said first end so as to be substantially parallel with said first strip conductor, whereby said incident wave is applied between said first extremity of said second strip conductor and said ground strip line conductor; first and second series connected diodes, each having an anode and a cathode, said anode of said first diode being connected to said second extremity of said second strip conductor, and said cathode of said second diode being connected to said second extremity of said first strip conductor; means for applying an electric field produced by said mixing wave between said anode of said first diode and said cathode of said second diode; and output means, connected between said first diode anode and said second diode cathode, for providing said mixed wave.
Claim 3
Dependent Claim
28 words
A mixer according to claim 1, wherein the length of each of said first and said second strip conductors is shorter than one-quarter wavelength of said incident wave.
Claim 4
Dependent Claim
17 words
A mixer according to claim 2, wherein said gap has a width of a few hundred microns.
Claim 5
Dependent Claim
14 words
A mixer according to claim 3, wherein said applying means includes two slotted lines.
Claim 6
Dependent Claim
55 words
A mixer according to claim 4, wherein said slotted lines include first and second spaced parallel lines deposited by metallization on said second face, each parallel line being electrically connected to said ground strip line conductor by means of at least one metallized hole extending right through said substrate from one face to the other.
Claim 7
Dependent Claim
34 words
A mixer according to claim 5, wherein said diodes are placed on said second face and are connected to said first strip conductor extending right through said substrate from one face to the other.
Claim 8
Dependent Claim
70 words
A mixer according to claim 6, wherein said slotted lines include a common strip line conductor located on said second face between and parallel to said first and second parallel lines, a midpoint of said series connected diodes being connected to said common strip line conductor and said first diode anode being connected to said first parallel line and said second diode cathode being connected to said second parallel line.
Claim 9
Dependent Claim
25 words
A mixer according to claim 7, wherein said common strip line conductor is divided into two lines elements connected to each other via a capacitor.
Claim 10
Dependent Claim
24 words
A mixer according to claim 8, wherein said midpoint of said series connected diodes is connected to said output means by a low-pass filter.
References Cited (Backward Citations)
US3523260A
Cited
US3939430A
Cited
JPS52113661A
Cited
US4340975A
Cited
JPS5687901A
Cited
JPS56149805A
Cited
DE3018307A1
Cited
US4359781A
Cited
US4380829A
Cited
US4412354A
Cited
US4461040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |