US3605106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slot fitting of coded linear array antenna
Assignee: TDK Micronas GmbH
•
Filing: 1969-06-30
•
Granted: 1971-09-14
•
Expires: 1989-06-30
Abstract
Abstract There is provided a method for fitting the irregular radiator spacing as disclosed in U.S. Pat. No. 3,130,410 into a regular grid by approximation. This permits the construction of a spacecoded array in a simpler and less costly manner.
Inventors
- 👤 Frank S Gutleber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:59
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/06; H01Q21/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
127 words
A method of defining all available design K parameters for securing a predetermined directive radiation pattern for a linear array antenna having individual antenna units, in which relative spacing between said individual antenna elements is according to the equation the design K''s being utilized for a given value of minimum spacing lambda /X, where lambda /X is desired minimum spacing expressed as a fraction of a wavelength, and a given value of space angle theta o, the design K''s existing according to the equation where N is any integer, h is the roots of unity, X is an index number assuming the values 1, 2, 3 etc., and theta o is a given space angle associated with the null appearing between the main and first side lobes.
Claim 2
Independent Claim
127 words
A method of defining all available design K parameters for securing a predetermined directive radiation pattern for a linear array antenna having individual antenna units, in which relative spacing between said individual antenna elements is according to the equation the design K''s being utilized for a given value of minimum spacing lambda /X, where lambda /X is desired minimum spacing expressed as a fraction of a wavelength, and a given value of space angle theta o, the design K''s existing according to the equation where N is any integer, h is the roots of unity, X is an index number assuming the values 1, 2, 3 etc., and theta o is a given space angle associated with the null appearing between the main and first side lobes.
Claim 3
Independent Claim
88 words
A method of establishing available design K parameters for linear array antenna coding, in which positioning of individual antenna elements from each other is according to a predetermined code given by the equation and in which the relative code spacing S is restricted to a specified fraction of a wavelength times an integer according to equation where lambda wavelength, theta o is a given value of space angle associated with the null appearing between the main and first side lobes, and h is the hth roots of unity.
Claim 4
Independent Claim
88 words
A method of establishing available design K parameters for linear array antenna coding, in which positioning of individual antenna elements from each other is according to a predetermined code given by the equation and in which the relative code spacing S is restricted to a specified fraction of a wavelength times an integer according to equation where lambda wavelength, theta o is a given value of space angle associated with the null appearing between the main and first side lobes, and h is the hth roots of unity.
Claim 5
Independent Claim
95 words
A method of space coding a linear array antenna in which positioning of the individual antenna elements is according to the equation wherein the code positions are forced to occupy an integral value of a specified minimum spacing lambda /X expressed as a fraction of wavelength lambda , and the slot fitting requires that the spacing S be restricted to this specified fraction times an integer N, the method according to the equation where K represents available design parameters, theta o is a given value of space angle, h is the hth roots of unity.
Claim 6
Independent Claim
95 words
A method of space coding a linear array antenna in which positioning of the individual antenna elements is according to the equation wherein the code positions are forced to occupy an integral value of a specified minimum spacing lambda /X expressed as a fraction of wavelength lambda , and the slot fitting requires that the spacing S be restricted to this specified fraction times an integer N, the method according to the equation where K represents available design parameters, theta o is a given value of space angle, h is the hth roots of unity.
Claim 7
Independent Claim
90 words
A method of defining all available design K parameters which can be used to secure predetermined directive radiation pattern For a linear array antenna by forcing the code positions to occupy some integral value of a specified minimum separation, in which the individual antenna elements are positioned according to the equation the method according to the equation where lambda wavelength, lambda /X desired minimum spacing expressed as a fraction of wavelength, N any integer, theta o a given value of space angle, and h is the hth roots of unity.
Claim 8
Independent Claim
90 words
A method of defining all available design K parameters which can be used to secure predetermined directive radiation pattern For a linear array antenna by forcing the code positions to occupy some integral value of a specified minimum separation, in which the individual antenna elements are positioned according to the equation the method according to the equation where lambda wavelength, lambda /X desired minimum spacing expressed as a fraction of wavelength, N any integer, theta o a given value of space angle, and h is the hth roots of unity.
Claim 9
Independent Claim
93 words
A method of securing an exceedingly sharp central lobe and arbitrarily small side lobes for a linear array antenna by forcing the code positions to occupy some integral value of a specified minimum separation, in which positioning of individual antenna element is according to a predetermined code given by the equation the design K parameters are established according to the equation where lambda wavelength, lambda /X desired minimum spacing expressed as a fraction of wavelength, N any integer, theta o a given value of space angle, and h the hth roots of unity.
Claim 10
Independent Claim
93 words
A method of securing an exceedingly sharp central lobe and arbitrarily small side lobes for a linear array antenna by forcing the code positions to occupy some integral value of a specified minimum separation, in which positioning of individual antenna element is according to a predetermined code given by the equation the design K parameters are established according to the equation where lambda wavelength, lambda /X desired minimum spacing expressed as a fraction of wavelength, N any integer, theta o a given value of space angle, and h the hth roots of unity.
References Cited (Backward Citations)
US3182330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |