Efficient radome structures of variable geometry
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01Q-001/42
출원번호
US-0448973
(2003-05-30)
발명자
/ 주소
Delgado, Heriberto Jose
Killen, William D.
출원인 / 주소
Harris Foundation
대리인 / 주소
Sacco &
인용정보
피인용 횟수 :
5인용 특허 :
17
초록▼
Method for constructing a radome (110). The method can include the steps of providing a radome structure, wherein the radome structure can include at least one of a radome wall (115) and a radome frame (120). The radome structure can be impedance matched to an operational environment. The impedance
Method for constructing a radome (110). The method can include the steps of providing a radome structure, wherein the radome structure can include at least one of a radome wall (115) and a radome frame (120). The radome structure can be impedance matched to an operational environment. The impedance match can be independent of the thickness and geometry of the radome structure.
대표청구항▼
1. A method for constructing a radome, comprising the steps of:providing a radome structure, wherein said radome structure comprises at least one of a radome wall and a radome frame; and, matching a characteristic impedance of a material forming said radome structure to a characteristic impedance of
1. A method for constructing a radome, comprising the steps of:providing a radome structure, wherein said radome structure comprises at least one of a radome wall and a radome frame; and, matching a characteristic impedance of a material forming said radome structure to a characteristic impedance of free space independent of the thickness and geometry of said radome structure. 2. A method according to claim 1, further comprising the steps of:matching said characteristic impedance of said material to a characteristic impedance of free space independent of a frequency and an angle of incidence of radio frequency signals that pass through said radome structure. 3. A method for constructing a radome, comprising the steps of:providing a radome structure, wherein said radome structure comprises at least one of a radome wall and a radome frame; impedance matching said radome structure to an operational environment independent of the thickness and geometry of said radome structure; selecting an electrical characteristic for said radome structure from the group consisting of a permittivity, a permeability, a loss tangent, and a reflectivity; and, adjusting said selected electrical characteristic to achieve said impedance matching for said radome structure. 4. The method according to claim 3, said adjusting step further comprising the step of:adjusting a relative magnetic permeability of said radome structure to approximately equal a relative electrical permittivity of said radome structure. 5. The method of claim 4, said adjusting step further comprising the steps of:forming said radome structure using a dielectric material; creating a plurality of voids within said dielectric material; and, inserting a plurality of magnetic particles into selective ones of said voids. 6. A method for constructing a radome, comprising the steps of:providing radome structure, wherein said radome structure comprises at least one of a radome wall and a radome frame; impedance matching said radome structure to an operational environment independent of the thickness and geometry of said radome structure; varying a thickness of at least a portion of said radome structure. 7. A method for constructing a radome, comprising the steps of:providing a radome structure, wherein said radome structure comprises at least one of a radome wall and a radome frame; impedance matching said radome structure to an operational environment operational environment independent of the thickness and geometry of said radome structure; joining a plurality of panels to form said radome structure; and, impedance matching a coupling plane between adjacent ones of said panels to said operational environment. 8. The method according to claim 7, further comprising the steps of:joining said radome wall to said radome frame; and, impedance matching a coupling plane between said radome wall and said radome frame to said operational environment. 9. A radomestructure comprising at least one of a radome wall and a radome frame, wherein a plurality of electrical characteristics of a material forming said radome structure define a characteristic impedance of said radome structure that is matched with a characteristic impedance of free space independent of the thickness and geometry of said radome structure. 10. The radome structure according to claim 9, wherein said impedance match between said characteristic impedance of said radome structure and said characteristic impedance of free space is independent of frequency and angle of incidence of radio frequency waves which pass through said radome structure.11. A radome structure comprising at least one of a radome wall and a radome frame:a plurality of electrical characteristics of said radome structure defining a characteristic impedance of said radome structure that is matched with an operational environment independent of the thickness and geometry of said radome structure; wherein at least of a portion of said radome structure is formed from a dielectric material, and said dielectric material comprises magnetic particles. 12. The radome structure according to claim 11, wherein said magnetic particles comprise material selected from the group consisting of a ferroelectric material, a ferromagnetic material, and a ferrite.13. The radome structure according to claim 12, wherein a relative magnetic permeability of said radome structure approximately equals a relative electrical permittivity of said radome structure.14. A radome structure comprising at least one of a radome wall and a radome frame:a plurality of electrical characteristics of said radome structure defining a characteristic impedance of said radome structure that is matched with an operational environment independent of the thickness and geometry of said radome structure; wherein said radome structure comprises a plurality of panels, and a coupling plane joining adjacent ones of said plurality of panels is impedance matched to said operational environment. 15. A radome structure comprising at least one of a radome wall and a radome frame:a plurality of electrical characteristics of said radome structure defining a characteristic impedance of said radome structure that is matched with an operational environment independent of the thickness and geometry of said radome structure; wherein a coupling plane joining said radome wall and said radome frame is impedance matched to said operational environment. 16. A radome structure comprising at least one of a radome wall and a radome frame:plurality of electrical characteristics of said radome structure defining a characteristic impedance of said radome structure that is matched with an operational environment independent of the thickness and geometry of said radome structure; wherein said radome structure is of variable thickness. 17. A method for minimizing reflection of a radio frequency signal (RF) as the radio frequency signal traverses a radome boundary, comprising the steps of:interposing at least one radome panel in the path of the RF signal; and, selecting a permeability and a permittivity of a material forming said radome panel so that a ratio of said relative permeability to said relative permittivity is substantially equal to a ratio of a relative permeability to a relative permittivity of an environment surrounding said radome panel. 18. The method of claim 17, further comprising the step of:selecting said relative permittivity and said relative permeability of said radome panel to be substantially equal. 19. The method of claim 17, further comprising the step of:forming said radome panel from a dielectric material having a plurality of voids; and, selecting a size of said voids between about one millimeter and one nanometer.
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