US4054886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmitting/receiving antenna having mirror symmetry and defined polarizations
Assignee: Telefunken Systemtechnik AG
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Filing: 1975-12-10
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Granted: 1977-10-18
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Expires: 1995-12-10
Abstract
Abstract An antenna arrangement composed of at least two individual antennas of the same type and each having a pair of signal applying terminals, and a processing circuit connected to the terminals of the antennas for establishing a selected relation between the voltages across the terminals or between voltages derived from these voltages, wherein, for giving the arrangement a desired radiation polarization characteristic, the individual antennas and the circuit are arranged for causing the total radiation pattern of the arrangement to have mirror symmetry with respect to a selected plane.
Inventors
- 👤 Armin Bergander
- 👤 Georg Kurz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:16
CPC Classifications
H; H01; H01Q; H01Q25/00; H01Q25/001; H01Q11/00; H01Q11/02; H01Q11/10; H01Q11/105; H01Q21/00; H01Q21/24; H01Q5/00; H01Q5/20; H01Q5/28
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
129 words
An antenna arrangement comprising at least two individual antennas each having a pair of signal applying terminals and each presenting a frequency dependent polarization characteristics, and circuit means connected to said terminals of said antennas for establishing a selected relation between the voltages across all said terminals or between voltages derived from these voltages, wherein two of said individual antennas each have an asymmetrical radiation pattern and, for giving said arrangement a desired radiation polarization characteristic, one of said two individual antennas is constructed to constitute the mirror image of the other, and said two individual antennas are positioned in mirror symmetry to one another with respect to a selected plane so that their radiation patterns are in mirror symmetry to one another with respect to said selected plane.
Claim 2
Dependent Claim
129 words
An antenna arrangement comprising at least two individual antennas each having a pair of signal applying terminals and each presenting a frequency dependent polarization characteristics, and circuit means connected to said terminals of said antennas for establishing a selected relation between the voltages across all said terminals or between voltages derived from these voltages, wherein two of said individual antennas each have an asymmetrical radiation pattern and, for giving said arrangement a desired radiation polarization characteristic, one of said two individual antennas is constructed to constitute the mirror image of the other, and said two individual antennas are positioned in mirror symmetry to one another with respect to a selected plane so that their radiation patterns are in mirror symmetry to one another with respect to said selected plane.
Claim 3
Dependent Claim
14 words
An arrangement as defined in claim 1 wherein each of said antennas includes reflector.
Claim 4
Dependent Claim
17 words
An arrangement as defined in claim 1 wherein all of said antennas are of the same type.
Claim 5
Dependent Claim
15 words
An arrangement as defined in claim 1 wherein each said antenna is a broadband antenna.
Claim 6
Dependent Claim
15 words
An arrangement as defined in claim 4 wherein each said antenna is a logarithmic-periodic antenna.
Claim 7
Dependent Claim
16 words
An arrangement as defined in claim 4 wherein each said antenna has at least one reflector.
Claim 8
Dependent Claim
46 words
An arrangement as defined in claim 1 wherein said antennas are arranged in at least one pair, with each antenna of said pair being inclined at an angle of 45° to said plane so that the two antennas of a pair are perpendicular to one another.
Claim 9
Dependent Claim
36 words
An arrangement as defined in claim 1 wherein each said antenna has a design operating frequency range associated with a given polarization characteristic and has the same polarization with respect to frequencies below such operating range.
Claim 10
Dependent Claim
48 words
An arrangement as defined in claim 1 wherein said circuit means comprises an energy dividing or combining coupler having external terminals and arranged to cause the voltage at each external terminal to represent a selected algebraic combination of the voltages across said signal applying terminals of said antennas.
Claim 11
Dependent Claim
35 words
An arrangement as defined in claim 9 wherein said circuit means comprise voltage adjusting members connected for imparting respectively different weightings to the signal across said pairs of signal applying terminals of respectively different antennas.
Claim 12
Dependent Claim
20 words
An arrangement as defined in claim 10 wherein such different weightings are at least partly with respect to signal amplitudes.
Claim 13
Dependent Claim
20 words
An arrangement as defined in claim 10 wherein such different weightings are at least partly with respect to signal phases.
Claim 14
Dependent Claim
20 words
An arrangement as defined in claim 10 wherein such different weightings are at least partly with respect to signal frequencies.
Claim 15
Dependent Claim
40 words
An arrangement as defined in claim 1 wherein said circuit means comprise members connected for establishing a predetermined relation between the voltages across said signal applying terminals of said antennas for imparting a selected radiation pattern polarization to said arrangement.
Claim 16
Dependent Claim
18 words
An arrangement as defined in claim 14 wherein said members impart an elliptical polarization pattern to said arrangement.
Claim 17
Dependent Claim
12 words
An arrangement as defined in claim 1 constituting a transmitting antenna arrangement.
Claim 18
Dependent Claim
16 words
An arrangement as defined in claim 1 constituting a receiving, direction finding or ranging antenna arrangement.
Claim 19
Dependent Claim
24 words
An arrangement as defined in claim 1 constituting an antenna arrangement which operates alternatingly as a transmitting and receiving, direction finding or ranging arrangement.
Claim 20
Dependent Claim
70 words
An arrangement as defined in claim 1 further comprising a third individual antenna having a pair of signal applying terminals connected to said circuit means and presenting a frequency dependent polarization characteristic, said third antenna being constructed to constitute the mirror image of one of said two individual antennas and being positioned in mirror symmetry to said one of said two individual antennas with respect to a second selected plane.
References Cited (Backward Citations)
US3249946A
Cited
US3470559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-17 | 1981-04-18 | 1981-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-17 | 1985-04-18 | 1985-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-17 | 1989-04-18 | 1989-10-18 | $7700.00 | Window Closed / Lapsed |