Patent US3789406A successfully refreshed from Google Patents.
US3789406A
Expired / Lapsed
US
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Apparatus for simultaneously transmitting and receiving as well as mixing transmitted and received waves
Assignee: Siemens Schweiz AG
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Filing: 1971-12-27
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Granted: 1974-01-29
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Expires: 1991-12-27
Abstract
Abstract An apparatus for simultaneously transmitting and receiving as well as mixing transmitted and received waves. The transmitted and received waves respectively having perpendicular polarization directions with respect to one another. The apparatus comprises a reflector with an associated primary horn radiator impinging upon the reflector. The primary horn radiator is advantageously flared throughout its length from front to back thereof to provide a tapered hollow space therein. An excitation conductor delivers the waves to be transmitted to the horn radiator. There is provided means for receiving waves captured by the radiator, such receiving means being arranged in the tapered hollow space of the horn radiator and serves to filter out and remove the received waves as well as a portion of the transmitted waves and to mix these filtered out waves. For the purpose of compensating for non-symmetry in the field of the received wave the receiving means is advantageously arranged in offset relationship with respect to the central lengthwise axis of the horn radiator. Such apparatus has typical utilization in electronic distance measuring environments.
Inventors
- 👤 H Wernli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:12
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/10; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/247; H01Q13/00; H01Q13/02; H01Q13/025; H01Q13/0258; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/13; H01Q25/00; H01Q25/001
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
179 words
An apparatus for simultaneously transmitting and receiving as well as mixing transmitted and received waves which have respective polarization directions perpendicular to one another, said apparatus comprising: a reflector means; a primary horn radiator means impinging upon said reflector means, said primary horn radiator means being flared throughout its length and possessing a tapered internal hollow space; an excitation conductor connected to said primary horn radiator means for delivering waves to be transmitted thereto; and receiving means for receiving waves captured by said primary horn radiator means, said receiving means being disposed in said tapered hollow space of said primary horn radiator means and in sufficient proximity to said excitation conductor that a portion of the transmitted wave emanating from said excitation conductor arrives at said receiving means, said receiving means being located in offset relationship with respect to the central lengthwise axis of said primary horn radiator means to compensate for non-symmetry in the field of the received wave, said receiving means filtering-out the received wave, said portion of the transmitted wave, and also mixing these filtered-out waves.
Claim 2
Independent Claim
179 words
An apparatus for simultaneously transmitting and receiving as well as mixing transmitted and received waves which have respective polarization directions perpendicular to one another, said apparatus comprising: a reflector means; a primary horn radiator means impinging upon said reflector means, said primary horn radiator means being flared throughout its length and possessing a tapered internal hollow space; an excitation conductor connected to said primary horn radiator means for delivering waves to be transmitted thereto; and receiving means for receiving waves captured by said primary horn radiator means, said receiving means being disposed in said tapered hollow space of said primary horn radiator means and in sufficient proximity to said excitation conductor that a portion of the transmitted wave emanating from said excitation conductor arrives at said receiving means, said receiving means being located in offset relationship with respect to the central lengthwise axis of said primary horn radiator means to compensate for non-symmetry in the field of the received wave, said receiving means filtering-out the received wave, said portion of the transmitted wave, and also mixing these filtered-out waves.
Claim 3
Dependent Claim
26 words
An apparatus as defined in claim 1, wherein said receiving means consists of a semi-conductor disposed in the hollow space of said primary horn radiator means.
Claim 4
Dependent Claim
35 words
An apparatus as defined in claim 1, wherein said receiving means consists of a de-coupling member at least partially extending into the hollow space of said primary horn radiator means, and a subsequently disposed semi-conductor.
Claim 5
Dependent Claim
61 words
An apparatus as defined in claim 1, wherein said primary horn radiator means is open at the front end thereof, and is terminated at the rear end thereof by a short-circuit plate, and wherein said receiving means is disposed in the tapered hollow space of said horn radiator means between the connection location of said excitation conductor and said short-circuit plate.
Claim 6
Dependent Claim
76 words
An apparatus as defined in claim 4, wherein said excitation conductor is disposed through one inside wall surface delimiting the hollow space oF said horn radiator means and wherein said offset arranged receiving means is disposed in the tapered hollow space such that the spacing of said receiving means from said one inside wall surface is greater than the spacing of said receiving means from an oppositely situated inside wall surface of said tapered hollow space.
Claim 7
Dependent Claim
107 words
An apparatus as defined in claim 5, wherein said primary horn radiator means, at the region of said short-circuit plate thereof, defines a cross-section corresponding to a rectangular waveguide for conducting the fundamental mode of the received wave, and wherein the front end cross-sectional opening of said primary horn radiator means is also rectangular with the longer sides of the rectangle being disposed parallel to the electric field of the received waves, and wherein the wall surfaces of the internal hollow space of said horn radiator means are planar surfaces and connect the respective parallel sides of both rectangular end cross-sections of said primary horn radiator means.
Claim 8
Independent Claim
186 words
An apparatus for simultaneously transmitting and receiving as well as mixing transmitted and received waves which have respective polarization directions perpendicular to one another, said apparatus comprising: a reflector means; a primary horn radiator means impinging upon said reflector means, said primary horn radiator means being flared throughout its length and possessing a tapered internal hollow space; an excitation conductor connected to said primary horn radiator means for delivering waves to be transmitted thereto; and receiving means for receiving waves captured by said primary horn radiator means, said receiving means disposed in said tapered hollow space of said primary horn radiator means and in sufficient proximity to said excitation conductor that a portion of the transmitted waves emanating from said excitation conductor arrives at said receiving means, said receiving means being located in offset relationship with respect to the central lengthwise axis of said primary horn radiator means and which offset relationship is so proportioned as to compensate for non-symmetry in the antenna diagram of the received wave, said receiving means filtering-out the received wave, said portion of tranmitted wave, and also mixing these filtered-out waves.
Claim 9
Independent Claim
186 words
An apparatus for simultaneously transmitting and receiving as well as mixing transmitted and received waves which have respective polarization directions perpendicular to one another, said apparatus comprising: a reflector means; a primary horn radiator means impinging upon said reflector means, said primary horn radiator means being flared throughout its length and possessing a tapered internal hollow space; an excitation conductor connected to said primary horn radiator means for delivering waves to be transmitted thereto; and receiving means for receiving waves captured by said primary horn radiator means, said receiving means disposed in said tapered hollow space of said primary horn radiator means and in sufficient proximity to said excitation conductor that a portion of the transmitted waves emanating from said excitation conductor arrives at said receiving means, said receiving means being located in offset relationship with respect to the central lengthwise axis of said primary horn radiator means and which offset relationship is so proportioned as to compensate for non-symmetry in the antenna diagram of the received wave, said receiving means filtering-out the received wave, said portion of tranmitted wave, and also mixing these filtered-out waves.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |