US3916349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase shifter for linearly polarized antenna array
Assignee: TDK Micronas GmbH
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Filing: 1974-09-19
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Granted: 1975-10-28
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Expires: 1994-09-19
Abstract
Abstract There is disclosed herein a linearly polarized mat-strip phased antenna array wherein the antenna array is phased by incorporating in series relationship one or more mat-strip loaded line type phase shifters in the mat-strip power division distribution network for the mat-strip dipole elements and/or a combined mat-strip dipole element and phase inverter. Two embodiments are illustrated.
Inventors
- 👤 Joseph C Ranghelli
- 👤 Emmanuel J Perrotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:16
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/34; H01Q3/36; H01Q3/38; H01Q9/00; H01Q9/04; H01Q9/06; H01Q9/065
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
205 words
A mat-strip phase shifting arrangement comprising: at least one phase shifter including a one quarter wavelength mat-strip impedance transformer disposed in a mat-strip power distribution network, said transformer and said distribution network being carried by a printed circuit board, a first Shunt mat-strip transmission line carried by said board and extending perpendicular from one end of said transformer, a second shunt mat-strip transmission line carried by said board and extending perpendicular from the other end of said transformer parallel to said first shunt transmission line, four normally non-conducting switching diodes carried by said board, each of said four diodes being connected to an end of a different one of the conductors of said first and second shunt transmission lines, and four radio frequency ground terminating and direct current biasing printed circuit pads carried by said board, each of said four pads being connected to a different one of said four diodes; a source of switching voltage; and a switching arrangement connected between said source and each of said four pads to render said four diodes conductive to radio frequency ground, said first and second shunt transmission lines by said four pads to provide a predetermined amount of radio frequency phase shift in said distribution network.
Claim 2
Dependent Claim
205 words
A mat-strip phase shifting arrangement comprising: at least one phase shifter including a one quarter wavelength mat-strip impedance transformer disposed in a mat-strip power distribution network, said transformer and said distribution network being carried by a printed circuit board, a first Shunt mat-strip transmission line carried by said board and extending perpendicular from one end of said transformer, a second shunt mat-strip transmission line carried by said board and extending perpendicular from the other end of said transformer parallel to said first shunt transmission line, four normally non-conducting switching diodes carried by said board, each of said four diodes being connected to an end of a different one of the conductors of said first and second shunt transmission lines, and four radio frequency ground terminating and direct current biasing printed circuit pads carried by said board, each of said four pads being connected to a different one of said four diodes; a source of switching voltage; and a switching arrangement connected between said source and each of said four pads to render said four diodes conductive to radio frequency ground, said first and second shunt transmission lines by said four pads to provide a predetermined amount of radio frequency phase shift in said distribution network.
Claim 3
Dependent Claim
16 words
An arrangement according to claim 1, wherein each of said four diodes is a PIN diode.
Claim 4
Dependent Claim
17 words
An arrangement according to claim 2, wherein each of said PIN diodes is parallel to said board.
Claim 5
Dependent Claim
243 words
A mat-strip phase shifting arrangement comprising: a plurality of cascade connected phase shifters disposed in a mat-strip power distribution network carried by a printed circuit board, each of said phase shifters including a one quarter wavelength mat-strip impedance transformer disposed in said distribution network and carried by said board, a first shunt mat-strip transmission line carried by said board and extending perpendicular from one end of said transformer, a second shunt mat-strip transmission line carried by said board and extending perpendicular from the other end of said transformer parallel to said first shunt transmission line, four normally non-conducting switching diodes carried by said board, each of said four diodes being connected to an end of a different one of the conductors of said first and second shunt transmission lines, and fourth radio frequency ground terminating and direct current biasing printed circuit pads carried by said board, each of said four pads being connected to a different one of said four diodes; a source of switching voltage; and a switching arrangement connected between said source and each of said four pads of each of said plurality of said phase shifters to render each of said four diodes of selected ones of said plurality of phase shifters conductive to radio frequency ground said first and second shunt transmission lines by said four pads of selected ones of said plurality of phase shifters to provide predetermined steps of radio frequency phase shift in said distribution network.
Claim 6
Dependent Claim
243 words
A mat-strip phase shifting arrangement comprising: a plurality of cascade connected phase shifters disposed in a mat-strip power distribution network carried by a printed circuit board, each of said phase shifters including a one quarter wavelength mat-strip impedance transformer disposed in said distribution network and carried by said board, a first shunt mat-strip transmission line carried by said board and extending perpendicular from one end of said transformer, a second shunt mat-strip transmission line carried by said board and extending perpendicular from the other end of said transformer parallel to said first shunt transmission line, four normally non-conducting switching diodes carried by said board, each of said four diodes being connected to an end of a different one of the conductors of said first and second shunt transmission lines, and fourth radio frequency ground terminating and direct current biasing printed circuit pads carried by said board, each of said four pads being connected to a different one of said four diodes; a source of switching voltage; and a switching arrangement connected between said source and each of said four pads of each of said plurality of said phase shifters to render each of said four diodes of selected ones of said plurality of phase shifters conductive to radio frequency ground said first and second shunt transmission lines by said four pads of selected ones of said plurality of phase shifters to provide predetermined steps of radio frequency phase shift in said distribution network.
Claim 7
Dependent Claim
24 words
An arrangement according to claim 4, wherein each of said four diodes of each of said plurality of phase shifters is a PIN diode.
Claim 8
Dependent Claim
17 words
An arrangement according to claim 5, wherein each of said PIN diodes is parallel to said board.
References Cited (Backward Citations)
US3491314A
Cited
US3750055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |