US5245353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual waveguide probes extending through back wall
Assignee: Individual
•
Filing: 1992-01-08
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Granted: 1993-09-14
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Expires: 2012-01-08
Abstract
Abstract Waveguide OMT, which can be utilized as an antenna feed, has two orthogonally polarized coaxial ports extending through the back wall of the waveguide. Cross coupling between the probes is minimized by locating the point of entry through the back wall and orienting each probe such that it couples to a primary waveguide mode, but does not couple to the first higher waveguide mode, or, for coaxial waveguide, does not couple to the TEM mode.
Inventors
- 👤 Harry J. Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:53
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/16; H01P1/161; H01Q; H01Q13/00; H01Q13/02; H01Q13/025; H01Q13/0258
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
93 words
Waveguide apparatus, comprising, in combination: waveguide means for receiving polarized radio signals, having a back wall and a longitudinal axis; first probe means extending through the back wall for coupling to a primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to at least one first higher-order electro-magnetic waveguide mode; second probe means extending through the back wall for coupling to a second primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to at least one first higher-order electro-magnetic waveguide mode and oriented to be substantially orthogonal to the first probe.
Claim 2
Dependent Claim
93 words
Waveguide apparatus, comprising, in combination: waveguide means for receiving polarized radio signals, having a back wall and a longitudinal axis; first probe means extending through the back wall for coupling to a primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to at least one first higher-order electro-magnetic waveguide mode; second probe means extending through the back wall for coupling to a second primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to at least one first higher-order electro-magnetic waveguide mode and oriented to be substantially orthogonal to the first probe.
Claim 3
Dependent Claim
35 words
The apparatus of claim 1 in which the waveguide means includes a circular cross-sectional configuration in which the primary modes are the TE 11 mode and the first higher-order mode is the TM 01 mode.
Claim 4
Dependent Claim
40 words
The apparatus of claim 1 in which the waveguide means includes a square cross-sectional configuration in which the primary modes are the TE 10 mode and the first higher-order modes are the TE 11 mode and the TM 11 mode.
Claim 5
Dependent Claim
61 words
The apparatus of claim 1 in which the first probe means includes: a first conductor substantially parallel to the axis of the waveguide means and extending through the back wall, and a second conductor connected to the first conductor at an oblique angle to the first conductor, and which second conductor extends generally in an axial direction into the waveguide means.
Claim 6
Dependent Claim
86 words
The apparatus of claim 1 in which the first probe means includes: a first conductor substantially parallel to the axis of the waveguide means and extending through the back wall, and a second conductor connected to the first conductor and is substantially parallel to the back wall, and a third conductor connected to the second conductor and is substantially parallel to the axis of the waveguide means (waveguide axis), and a fourth conductor connected to the third conductor and is substantially parallel to the back wall.
Claim 7
Dependent Claim
169 words
Waveguide apparatus, comprising, in combination: waveguide means for receiving polarized radio signals, including a back wall having an outer edge and a geometric center; first probe means extending through the back wall at a position which is bounded by the outer edge of the back wall and about two thirds the distance from the outer edge to the geometric center of the back wall, said first probe means positioned to couple to a first primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to at least one first higher-order electro-magnetic waveguide mode; second probe means extending through the back wall at a position which is bounded by the outer edge of the back wall and two thirds the distance from the outer edge to the geometric center of the back wall, said second probe means positioned to couple to a second primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to at least one first higher-order electro-magnetic waveguide mode and substantially orthogonal to the first probe means.
Claim 8
Dependent Claim
169 words
Waveguide apparatus, comprising, in combination: waveguide means for receiving polarized radio signals, including a back wall having an outer edge and a geometric center; first probe means extending through the back wall at a position which is bounded by the outer edge of the back wall and about two thirds the distance from the outer edge to the geometric center of the back wall, said first probe means positioned to couple to a first primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to at least one first higher-order electro-magnetic waveguide mode; second probe means extending through the back wall at a position which is bounded by the outer edge of the back wall and two thirds the distance from the outer edge to the geometric center of the back wall, said second probe means positioned to couple to a second primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to at least one first higher-order electro-magnetic waveguide mode and substantially orthogonal to the first probe means.
Claim 9
Dependent Claim
34 words
The apparatus of claim 6 in which the waveguide means includes a circular cross-sectional configuration and the primary modes are the TE 11 mode and the first higher-order mode is the TM 01 mode.
Claim 10
Dependent Claim
39 words
The apparatus of claim 6 in which the waveguide means includes a square cross-sectional configuration and the primary modes are the TE 10 mode and the first higher-order modes are the TE 11 mode and the TM 11 mode.
Claim 11
Dependent Claim
61 words
The apparatus of claim 6 in which the first probe means includes: a first conductor substantially parallel to the axis of the waveguide means and extending through the back wall, and a second conductor connected to the first conductor at an oblique angle to the first conductor, and which second conductor extends generally in an axial direction into the waveguide means.
Claim 12
Dependent Claim
84 words
The apparatus of claim 6 in which the first probe means includes: a first conductor substantially parallel to the axis of the waveguide means and extending through the back wall, and a second conductor connected to the first conductor and is substantially parallel to the back wall, and a third conductor connected to the second conductor and is substantially parallel to the axis of the waveguide means, and a fourth conductor connected to the third conductor and is substantially parallel to the back wall.
Claim 13
Dependent Claim
68 words
Waveguide apparatus, comprising, in combination: waveguide means for receiving polarized radio signals, having a back wall and a longitudinal axis; first probe means extending through the back wall for coupling to a primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to at least one first higher-order electro-magnetic waveguide mode; second probe means extending through the back wall for coupling to a second primary electro-magnetic waveguide mode.
Claim 14
Dependent Claim
68 words
Waveguide apparatus, comprising, in combination: waveguide means for receiving polarized radio signals, having a back wall and a longitudinal axis; first probe means extending through the back wall for coupling to a primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to at least one first higher-order electro-magnetic waveguide mode; second probe means extending through the back wall for coupling to a second primary electro-magnetic waveguide mode.
Claim 15
Dependent Claim
33 words
The apparatus of claim 11 in which the waveguide means includes circular cross-sectional configuration and the primary modes are the TE 11 mode and the first higher-order mode is the TM 01 mode.
Claim 16
Dependent Claim
39 words
The apparatus of claim 11 in which the waveguide means includes a generally square cross-sectional configuration and the primary modes are the TE 10 mode and the first higher-order modes are the TE 11 and the TM 11 mode.
Claim 17
Dependent Claim
86 words
Waveguide apparatus, comprising, in combination: coaxial waveguide means for receiving polarized radio signals, having a back wall and a longitudinal axis; first probe means extending through the back wall for coupling to a primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to the transverse electro-magnetic mode; second probe means extending through the back wall for coupling to a second primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to the transverse electro-magnetic mode and oriented to be substantially orthogonal to the first probe.
Claim 18
Dependent Claim
86 words
Waveguide apparatus, comprising, in combination: coaxial waveguide means for receiving polarized radio signals, having a back wall and a longitudinal axis; first probe means extending through the back wall for coupling to a primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to the transverse electro-magnetic mode; second probe means extending through the back wall for coupling to a second primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to the transverse electro-magnetic mode and oriented to be substantially orthogonal to the first probe.
Claim 19
Dependent Claim
26 words
The apparatus of claim 14 in which the coaxial waveguide means includes a circular cross-sectional configuration and the primary waveguide modes are the TE 11 mode.
Claim 20
Dependent Claim
16 words
The apparatus of claim 14 in which the coaxial waveguide means includes a square cross-sectional configuration.
Claim 21
Dependent Claim
65 words
Waveguide apparatus, comprising, in combination: coaxial waveguide means for receiving polarized radio signals, having a back wall and a longitudinal axis; first probe means extending through the back wall for coupling to a primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to the transverse electro-magnetic mode; second probe means extending through the back wall for coupling to a second primary electro-magnetic waveguide mode.
Claim 22
Dependent Claim
65 words
Waveguide apparatus, comprising, in combination: coaxial waveguide means for receiving polarized radio signals, having a back wall and a longitudinal axis; first probe means extending through the back wall for coupling to a primary electro-magnetic waveguide mode and oriented to be substantially orthogonal to the transverse electro-magnetic mode; second probe means extending through the back wall for coupling to a second primary electro-magnetic waveguide mode.
Claim 23
Dependent Claim
26 words
The apparatus of claim 17 in which the coaxial waveguide means includes a circular cross-sectional configuration and the primary waveguide modes are the TE 11 mode.
Claim 24
Dependent Claim
16 words
The apparatus of claim 17 in which the coaxial waveguide means includes a square cross-sectional configuration.
Claim 25
Dependent Claim
61 words
The apparatus of claim 17 in which the first probe means includes: a first conductor substantially parallel to the axis of the waveguide means and extending through the back wall, and a second conductor connected to the first conductor at an oblique angle to the first conductor, and which second conductor extends generally in an axial direction into the waveguide means.
Claim 26
Dependent Claim
84 words
The apparatus of claim 17 in which the first probe means includes: a first conductor substantially parallel to the axis of the waveguide means and extending through the back wall, and a second conductor connected to the first conductor and is substantially parallel to the back wall, and a third conductor connected to the second conductor and is substantially parallel to the axis of the waveguide means, and a fourth conductor connected to the third conductor and is substantially parallel to the back wall.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-13 | 1997-03-15 | 1997-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-13 | 2001-03-15 | 2001-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-13 | 2005-03-15 | 2005-09-14 | $7700.00 | Window Closed / Lapsed |