US3843941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-to-three port phase converter
Assignee: Raytheon Co
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Filing: 1973-10-04
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Granted: 1974-10-22
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Expires: 1993-10-04
Abstract
Abstract A waveguide network is disclosed which provides a simplified means of converting a quadrature phase input signal to a threephase output signal or vice versa. In the illustrative embodiment two coherent, equal amplitude input signals having a ninety degree relative phase difference are converted to three output signals having progressive phase differences of sixty degrees. The phase progression of the signals at the output ports can be +60*, 0*, -60* or -60*, 0*, +60* depending upon whether the relative phase of the input signals are +90* or -90*. The device comprises a composite structure having a phase correction section and a dual mode impedance transformer section in a unitary housing.
Inventors
- 👤 T Hudspeth
- 👤 H Suyematsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:17
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
126 words
A micorwave network comprising, in combination: a pair of input ports, means for coupling signal energy to said input ports, said signal energy at said input ports having components which are mutually in-phase and mutually out-of-phase; at least three output ports; means for coupling said input ports to said output ports, said means comprising the serial combination of a phase correction network and an impedance transformer; said phase correction network being adapted to shaft the phase of said in-phase components with respect to the phase of said out-of-phase components; and said impedance transformer being adapted to transform the inphase components of the phase-corrected signal energy into three in-phase output components and to transform the out-ofphase components of the phase-corrected signal energy into two out-of-phase output components.
Claim 2
Dependent Claim
126 words
A micorwave network comprising, in combination: a pair of input ports, means for coupling signal energy to said input ports, said signal energy at said input ports having components which are mutually in-phase and mutually out-of-phase; at least three output ports; means for coupling said input ports to said output ports, said means comprising the serial combination of a phase correction network and an impedance transformer; said phase correction network being adapted to shaft the phase of said in-phase components with respect to the phase of said out-of-phase components; and said impedance transformer being adapted to transform the inphase components of the phase-corrected signal energy into three in-phase output components and to transform the out-ofphase components of the phase-corrected signal energy into two out-of-phase output components.
Claim 3
Dependent Claim
31 words
The micorwave network according to claim 1 wherein signal energy to one of said input ports is in phase quadrature to the signal energy to the other of said input ports.
Claim 4
Dependent Claim
178 words
A five port waveguide network comprising, in combination: a hollow conductive housing; a conductive common wall extending longitudinally within said housing to form a pair of substantially identical rectangular waveguide sections; a first pair of conductive septa extending longitudinally within said housing parallel to said common wall and spaced therefrom, said first pair of septa and said common wall having a first longitudinal overlap; a second pair of conductive septa extending longitudinally within said housing parallel to said first pair of septa and spaced therefrom, said second and first pair of septa having a second longitudinal overlap, and a third pair of conductive septa extending longitudinally within said housing parallel to said second pair of septa and spaced therefrom, said third and second pair of septa having a third longitudinal overlap; input means including first and second ports coupled to the waveguide sections formed by the conductive housing and said common wall; and output means including third, fourth and fifth ports coupled to the waveguide sections formed by the conductive housing and said third pair of conductive septa.
Claim 5
Dependent Claim
178 words
A five port waveguide network comprising, in combination: a hollow conductive housing; a conductive common wall extending longitudinally within said housing to form a pair of substantially identical rectangular waveguide sections; a first pair of conductive septa extending longitudinally within said housing parallel to said common wall and spaced therefrom, said first pair of septa and said common wall having a first longitudinal overlap; a second pair of conductive septa extending longitudinally within said housing parallel to said first pair of septa and spaced therefrom, said second and first pair of septa having a second longitudinal overlap, and a third pair of conductive septa extending longitudinally within said housing parallel to said second pair of septa and spaced therefrom, said third and second pair of septa having a third longitudinal overlap; input means including first and second ports coupled to the waveguide sections formed by the conductive housing and said common wall; and output means including third, fourth and fifth ports coupled to the waveguide sections formed by the conductive housing and said third pair of conductive septa.
Claim 6
Dependent Claim
34 words
The network according to claim 3 wherein said common wall defines a plurality of apertures, a plurality of reactive elements, and means for supporting said reactive elements in a spaced relationship in said apertures.
Claim 7
Dependent Claim
18 words
The network according to claim 4 wherein said reactive elements comprise conductive rods extending transversely through said apertures.
Claim 8
Dependent Claim
40 words
The network according to claim 3 wherein said waveguide sections are capable of supporting propagating microwave energy of a given frequency and wherein said first, second and third longitudinal overlaps are substantially equal to one-quarter wavelength at said given frequency.
Claim 9
Dependent Claim
39 words
The network according to claim 3 wherein said hollow conductive housing is of substantially square cross-section over a first portion of its length and is stepped in at least one cross-sectional dimension over a second portion of its length.
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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |