Wideband high gain dielectric notch radiator antenna

• US 20090251377A1
• Filed: 04/06/2009
• Published: 10/08/2009
• Est. Priority Date: 04/05/2008
• Status: Active Grant

• Current Assignee: Mesh City Wireless LLC
• Original Assignee: Henry Cooper, Sheng Peng
• Inventors: Peng, Sheng, Cooper, Henry
• Granted Patent: US 8,063,841 B2
• Time in Patent Office: Days
• US Class Current: 343/795
• CPC Class Codes: H01Q 1/246 specially adapted for base stations
• CPC Class Codes: H01Q 1/523 between antennas of an array
• CPC Class Codes: H01Q 13/085 Slot-line radiating ends
• CPC Class Codes: H01Q 21/0087 Apparatus or processes specially adapted for manufacturing antenna arrays manufacturing waveguides H01P11/00
• CPC Class Codes: H01Q 21/064 using horn or slot aerials slotted waveguides arrays H01Q21/005

Abstract

A radiator element for RF transmission and reception over a wide band of frequencies. The radiator element is formed of conductive material on substrate surface of conductive material in the form of a pair of horns extending in opposite directions to distal tips defining the widest distance of a mouth of a cavity. The mouth reduces in cross-section to a narrowest point in between said pair of horns. The resulting radiator element will radiate and receive frequencies between frequencies the distance of the widest point and narrowest point are sized to receive.

Claims

1. A radiator element comprising:

a substrate;

a first substrate surface, a portion of which is covered with a conductive material, and a portion of which is uncovered;

said conductive material forming a pair of horns having substantially identical shapes, said horns each extending in opposite directions to distal tips;

a first cavity formed by said uncovered portion in-between said pair of horns;

said first cavity having a mouth portion, said mouth portion beginning at a first edge along a line extending between said distal tips;

said mouth portion reducing in cross-section as it extends from said first edge in-between said two horns to a narrowest point in between said pair of horns;

said first cavity extending away from said narrowest point in a curved direction into a first one of said horns; and

a feedline electrically communicating at a first end with a second one of said horns and adapted at a second end for electrical communication with an RF receiver or transceiver.

2. The radiator element of claim 1, further comprising:

said pair of horns having substantially identical shapes, extending in opposite directions to distal tips having the appearance of a whale'"'"'s tail when viewed from a position normal to the substrate surface on which said horns are formed.

3. The radiator element of claim 1, further comprising:

said narrowest point being at a position substantially equidistant from both said distal tips;

said position of said narrowest point being substantially along a line running perpendicular to said first edge.

4. The radiator element of claim 2, further comprising:

said narrowest point being at a position substantially equidistant from both said distal tips;

said position of said narrowest point being substantially along a line running perpendicular to said first edge.

5. The radiator element of claim 1, further comprising:

a pair of “

L”

shaped conductors extending from each respective said distal tip of said horns;

each respective said conductor electrically communicating between a respective said distal tip of one said horn and a respective body portion of the same said horn from which it extends.

6. The radiator element of claim 2, further comprising:

a pair of “

L”

shaped conductors extending from each respective said distal tip of said horns;

each respective said conductor electrically communicating between a respective said distal tip of one said horn and a respective body portion of the same said horn from which it extends.

7. The radiator element of claim 3, further comprising:

a pair of “

L”

shaped conductors extending from each respective said distal tip of said horns;

each respective said conductor electrically communicating between a respective said distal tip of one said horn and a respective body portion of the same said horn from which it extends.

8. The radiator element of claim 4, further comprising:

a pair of “

L”

shaped conductors extending from each respective said distal tip of said horns;

each respective said conductor electrically communicating between a respective said distal tip of one said horn and a respective body portion of the same said horn from which it extends.

9. The radiator element of claim 1, further comprising:

said widest point being between 1.4 and 1.6 inches; and

said narrowest point being between 0.024 and 0.026 inches.

10. The radiator element of claim 2, further comprising:

said widest point being between 1.4 and 1.6 inches; and

said narrowest point being between 0.024 and 0.026 inches.

11. The radiator element of claim 3, further comprising:

said widest point being between 1.4 and 1.6 inches; and

said narrowest point being between 0.024 and 0.026 inches.

12. The radiator element of claim 4, further comprising:

said widest point being between 1.4 and 1.6 inches; and

said narrowest point being between 0.024 and 0.026 inches.

13. The radiator element of claim 7, further comprising:

said widest point being between 1.4 and 1.6 inches; and

said narrowest point being between 0.024 and 0.026 inches.

14. The radiator element of claim 8, further comprising:

said widest point being between 1.4 and 1.6 inches; and

said narrowest point being between 0.024 and 0.026 inches.

15. The radiator element of claim 1, further comprising:

said widest point being substantially 1.5812 inches; and

said narrowest point being 0.0253 inches.

16. The radiator element of claim 3, further comprising:

said widest point being substantially 1.5812 inches; and

said narrowest point being 0.0253 inches.

17. The radiator element of claim 7, further comprising:

said widest point being substantially 1.5812 inches; and

said narrowest point being 0.0253 inches.

18. The radiator element of claim 1, further comprising:

a plurality of said radiator elements formed on said substrates adjacent to each other forming a said substrate with multiple said radiator elements;

a plurality of said substrate with said multiple radiator elements engageable to each other to form an array and position said radiator elements perpendicularly disposed to each other;

means to electrically connect said radiator elements in said array which are in a horizontally disposed positioning; and

electrically connecting said horizontally disposed radiator elements thereby providing a gain in RF signals which are horizontally disposed; and

electrically connecting said vertically disposed radiator elements thereby providing a gain in RF signals which are vertically disposed.

19. A method of adapting a wideband radiator element of claim 1 to radiate and receive RF signals between a maximum high and a maximum low frequency and adapted to transmit and receive RF frequencies therebetween, comprising:

forming said lobes to position said distal tips at said widest point, said widest point being a distance which is substantially half the distance of the length of a wave radiating at said low frequency; and

forming said lobes to form said narrowest point of said mouth having a distance which is substantially one half the distance of the lengths of a wave radiating at said high frequency.

20. A method of adapting a wideband radiator element of claim 1 to radiate and receive RF signals between a maximum high and a maximum low frequency and adapted to transmit and receive RF frequencies therebetween, comprising:

forming said lobes to position said distal tips at said widest point, said widest point being a distance which is substantially one quarter the distance of the length of a wave radiating at said low frequency; and

forming said lobes to form said narrowest point of said mouth having a distance which is substantially one quarter of the distance of a wave radiating at said high frequency.