Patent US3429358A successfully refreshed from Google Patents.
US4152653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated mixer arrangement
Assignee: Zenith Electronics LLC
•
Filing: 1978-03-03
•
Granted: 1979-05-01
•
Expires: 1998-03-03
Abstract
Abstract A single balanced mixer for use with a superheterodyne receiver or the like comprises an integrated structure characterized by a pair of opposed capacitive plates, a first mixing diode connected between the plates and a second mixing diode connected between one of the plates and a point of ground potential. A ferrite balun core is disposed between the capacitive plates and includes a first cavity receiving the first diode and a return conductor connected between two points of ground potential and a second cavity receiving the second diode and a return conductor connected between one of the plates and a point of ground potential. In another embodiment of the invention, a double balanced mixer comprises two interconnected integrated structures of the foregoing type, the diodes of one of the structures being connected having a polarity opposite that of the other.
Inventors
- 👤 Pierre Dobrovolny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:44
CPC Classifications
H; H03; H03D; H03D9/00; H03D9/06; H03D9/0608; H03D9/0633; H03D7/00; H03D7/14; H03D7/1408
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
127 words
A frequency translation device comprising: first and second ports; means forming a surface of ground potential; a first diode coupled between said first and second ports; a second diode coupled between said second port and a point on said surface of ground potential; first return means disposed along side said first diode and coupled between two points on said surface of ground potential; second return means disposed along side second diode and coupled between said first port and a point on said surface of ground potential; and magnetically conductive means extending substantially between said first and second ports and having a first portion substantially encompassing said first diode and said first return means and a second portion substantially encompassing said second diode and said second return means.
Claim 2
Dependent Claim
127 words
A frequency translation device comprising: first and second ports; means forming a surface of ground potential; a first diode coupled between said first and second ports; a second diode coupled between said second port and a point on said surface of ground potential; first return means disposed along side said first diode and coupled between two points on said surface of ground potential; second return means disposed along side second diode and coupled between said first port and a point on said surface of ground potential; and magnetically conductive means extending substantially between said first and second ports and having a first portion substantially encompassing said first diode and said first return means and a second portion substantially encompassing said second diode and said second return means.
Claim 3
Dependent Claim
21 words
A frequency translation device according to claim 1 wherein said first and second ports comprise first and second capacitive means respectively.
Claim 4
Dependent Claim
35 words
A frequency translation device according to claim 2 wherein said first and second capacitive means each comprise a metallic surface and a dielectric surmounting and forming with said surface of ground potential said capacitive means.
Claim 5
Dependent Claim
31 words
A frequency translation device according to claim 3 wherein said capacitive means are characterized by a relatively low impedance for at least one frequency band having frequencies above a predetermined frequency.
Claim 6
Dependent Claim
34 words
A frequency translation device according to claim 1 wherein said first and second diodes are connected for concurrent conduction and non-conduction in response to the injection of an input signal at said first port.
Claim 7
Dependent Claim
18 words
A frequency translation device according to claim 1 wherein said first and second return means comprise return conductors.
Claim 8
Dependent Claim
47 words
A frequency translation device according to claim 1 wherein said magnetically conductive means comprises a balun core having first and second cavities, said first cavity receiving said first diode and said first return means and said second cavity receiving said second diode and said second return means.
Claim 9
Dependent Claim
94 words
A frequency translation device according to claim 2 including third capacitive means coupled to said second capacitive means, a third diode coupled between said first capacitive means and said third capacitive means, and a fourth diode coupled between said third capacitive means and a point on said surface of ground potential, said first portion of said magnetically conductive means substantially encompassing said first diode, said third diode and said first return means and said second portion of said magnetically conductive means substantially encompassing said second diode, said fourth diode and said second return means.
Claim 10
Dependent Claim
44 words
A frequency translation device according to claim 8 wherein said third and fourth diodes are connected for concurrent conduction and non-conduction in response to the injection of an input signal at said first capacitive means and 180° out-of-phase with said first and second diodes.
Claim 11
Dependent Claim
40 words
A frequency translation device according to claim 8 wherein said first capacitive means comprises first and second capacitive portions, said first diode being connected to said first capacitive portion and said third diode being connected to said second capacitive portion.
Claim 12
Dependent Claim
55 words
A frequency translation device according to claim 10 including third return means disposed along side said third diode and coupled between two points on said surface of ground potential and fourth return means disposed along side said fourth diode and coupled between said second capacitive portion and a point on said surface of ground potential.
Claim 13
Dependent Claim
94 words
A frequency translation device according to claim 11 wherein said magnetically conductive means comprises first and second balun cores each having first and second cavities, said first cavity of said first balun core receiving said first diode and said first return means, said second cavity of said first balun core receiving said second diode and said second return means, said first cavity of said second balun core receiving said third diode and said third return means and said second cavity of said second balun core receiving said fourth diode and said fourth return means.
Claim 14
Dependent Claim
48 words
A frequency translation device according to claim 10 wherein said third capacitive means and said first and second capacitive portions each comprise a metallic plate and a dielectric surmounting and forming with said surface of ground potential said third capacitive means and said first and second capacitive portions.
Claim 15
Dependent Claim
41 words
A frequency translation device according to claim 13 wherein said third capacitive means and said first and second capacitive portions are each characterized by a relatively low impedance for at least one frequency band having at frequencies above a predetermined frequency.
References Cited (Backward Citations)
US3327220A
Cited
US4063176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |