US4157550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave detecting device with microstrip feed line
Assignee: Skyworks Solutions Inc
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Filing: 1978-03-13
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Granted: 1979-06-05
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Expires: 1998-03-13
Abstract
Abstract A microwave detector comprises a tapered ridged horn that terminates in a ridged waveguide formed with a slot extending through a broad wall of the waveguide and through the ridge that accommodates a stripline positioned so that a pair of diodes are connected across the gap between the ridge and the broad wall and brought out through stepped conductors dimensioned to function as low pass filters.
Inventors
- 👤 Martin J. Reid
- 👤 Robert W. Terry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:20
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/02; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/247; H03; H03D; H03D9/00; H03D9/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
84 words
In a microwave detector apparatus comprising, a ridged waveguide formed with a first longitudinal slot in a first walled structure, said first longitudinal slot facing a second longitudinal slot in the waveguide ridge for accommodating a stripline passing through the slots and diode means mounted on said stripline and located within the ridge gap between said first and second slots means including a second walled structure for covering said slots along their length and antenna means connected to the input of said ridged waveguide.
Claim 2
Dependent Claim
84 words
In a microwave detector apparatus comprising, a ridged waveguide formed with a first longitudinal slot in a first walled structure, said first longitudinal slot facing a second longitudinal slot in the waveguide ridge for accommodating a stripline passing through the slots and diode means mounted on said stripline and located within the ridge gap between said first and second slots means including a second walled structure for covering said slots along their length and antenna means connected to the input of said ridged waveguide.
Claim 3
Dependent Claim
19 words
Microwave apparatus in accordance with claim 1 and further comprising, said stripline extending through said first and second slots.
Claim 4
Dependent Claim
58 words
Microwave apparatus in accordance with claim 2 wherein said stripline is formed with first and second insulatedly separated conducting portions, said diode means comprising a first unilaterally conducting means connected between said first and second conducting portions located in the region therebetween in said ridge gap for establishing a rectifying connection between said first and second conducting portions.
Claim 5
Dependent Claim
63 words
Microwave apparatus in accordance with claim 3 and further comprising a third conducting portion generally parallel to said second conducting portion and located in said first slot and outside said second slot and said diode means further comprising, second unilaterally conducting means in said ridge gap connected between a fourth conducting portion and said third conducting portion for establishing a rectifying connection therebetween.
Claim 6
Dependent Claim
27 words
Microwave apparatus in accordance with claim 1 wherein said ridged waveguide is formed by two interlocking pieces each comprising substantially half the width of the ridged waveguide.
Claim 7
Dependent Claim
21 words
Microwave apparatus in accordance with claim 5 wherein said first and second slots are located entirely in one of said pieces.
Claim 8
Dependent Claim
19 words
Microwave apparatus in accordance with claim 1 wherein said antenna means comprises a microwave horn formed with opposed ridges.
Claim 9
Dependent Claim
33 words
Microwave apparatus in accordance with claim 7 wherein said microwave horn and a first piece of said ridged waveguide is a unitary structure that mates with a second piece of said ridged waveguide.
Claim 10
Dependent Claim
19 words
Microwave apparatus in accordance with claim 1 wherein said ridged waveguide is shorted at one end forming a cavity.
References Cited (Backward Citations)
US3267475A
Cited
US3990081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-04 | 1982-12-04 | 1983-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-04 | 1986-12-04 | 1987-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-04 | 1990-12-04 | 1991-06-05 | $7700.00 | Window Closed / Lapsed |