Dielectric lens, dielectric lens antenna including the same, and wireless device using the same

• US 6,195,058 B1
• Filed: 06/29/1999
• Issued: 02/27/2001
• Est. Priority Date: 06/29/1998
• Status: Expired due to Term

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Murata Manufacturing Co Limited
• Inventors: Tanaka, Hiroaki, Yamada, Hideaki, Nakamura, Fuminori
• Primary Examiner(s): Wong, Don
• Assistant Examiner(s): TRAN, CHUC
• Application Number:
  US09/340,615
• Time in Patent Office: 609 Days
• Field of Search: 343/753, 343/758, 343/911.L, 343/911.R, 343/755, 343/909, 343/785, 343/700.MS
• US Class Current: 343/753
• CPC Class Codes: H01Q 15/08 formed of solid dielectric material
• CPC Class Codes: H01Q 19/062 for focusing
• CPC Class Codes: H01Q 19/08 for modifying the radiation pattern of a radiating horn in which it is located corrugated horns H01Q13/0208; producing a circular polarisation H01Q13/0241

Abstract

The invention provides a dielectric lens, wherein the dielectric lens is rotation-symmetrically shaped, and a flat end is disposed at a part of the edge the dielectric lens. By the above described structure and arrangement, it become possible to widen a half-value angle in the direction which the flat ends of the lens are disposed without reducing a gain significantly.

Claims

1. A dielectric lens comprising a rotation-symmetrically shaped body having a perimeter edge portion;

and

at least one flat part disposed at a part only of the perimeter edge portion.

2. The dielectric lens according to claim 1, wherein a first flat part and a second flat part are respectively disposed at a part of the perimeter edge portion of the dielectric lens and opposed to each other.

3. The dielectric lens antenna comprising a dielectric lens having a rotation-symmetrically shaped body having a perimeter edge portion and at least one flat part disposed at a part only of the perimeter edge portion and a primary radiator disposed at a focal point of the dielectric lens.

5. The dielectric lens antenna according to claim 3, wherein the primary radiator and the dielectric lens are connected by a supporting plate extending in a taper shape for the outer periphery of the primary radiator to the edge portion of the dielectric lens over the entire circumference;

and

at least an inner surface of the supporting plate is made of metal.

6. The dielectric lens antenna according to claim 5, wherein the primary radiator and the dielectric lens are connected by a supporting plate extending in a taper shape from the outer periphery of the primary radiator to the edge portion of the dielectric lens over the entire circumference;

and

at least an inner surface of the supporting plate is made of metal.

4. A dielectric lens antenna comprising a dielectric lens having a rotation-symmetrically shaped body having a perimeter edge portion and wherein a first flat part and a second flat part are respectively disposed at a part of the perimeter edge portion of the dielectric lens and opposed to each other, and further comprising a primary radiator disposed at a focal point of the dielectric lens.

7. A wireless device comprising a dielectric lens antenna comprising a dielectric lens having a rotation-symmetrically shaped body having a perimeter edge portion and at least one flat part disposed at a part only of the perimeter edge portion and further comprising a primary radiator disposed at a focal point of the dielectric lens.

8. A wireless device comprising a dielectric lens antenna comprising a dielectric lens having a rotation-symmetrically shaped body having a perimeter edge portion and a primary radiator disposed at a focal point of the dielectric lens and further comprising a first flat part and a second flat part respectively disposed at a part of the edge portion of the dielectric lens and opposed to each other.

9. A wireless device comprising a dielectric lens antenna comprising a dielectric lens having a rotation-symmetrically shaped body having a perimeter edge portion and at least one flat part disposed at a part only of the perimeter edge portion and further comprising a primary radiator disposed at a focal point of the dielectric lens and further wherein the primary radiator and the dielectric lens are connected by a supporting plate extending in a taper shape from the outer periphery of the primary radiator to the edge portion of the dielectric lens over the entire circumference;

and

at least an inner surface of the supporting plate is made of metal.

10. A wireless device comprising a dielectric lens antenna comprising a dielectric lens having a rotation-symmetrically shaped body having a perimeter edge portion and wherein a first flat part and a second flat part are respectively disposed at a part of the perimeter edge portion of the dielectric lens and opposed to each other, and further comprising a primary radiator disposed at a focal point of the dielectric lens;

and further wherein the primary radiator and the dielectric lens are connected by a supporting plate extending in a taper shape from the outer periphery of the primary radiator to the edge portion of the dielectric lens over the entire circumference; and

at least an inner surface of the supporting plate is made of metal.