Apparatus for establishing signal coupling between a signal line and an antenna structure

• US 6,642,903 B2
• Filed: 05/15/2001
• Issued: 11/04/2003
• Est. Priority Date: 05/15/2001
• Status: Expired due to Fees

• Current Assignee: Time Domain Corporation (Humatics Corporation)
• Original Assignee: Time Domain Corporation (Humatics Corporation)
• Inventors: Schantz, Hans Gregory
• Primary Examiner(s): PHAN, THO GIA
• Application Number:
  US09/855,413
• Publication Number:
  US 20020175876A1
• Time in Patent Office: 903 Days
• Field of Search: H01/Q.928, H01/Q 2.126, 343/700.MS, 343/767, 343/770, 343/795, 343/808, 343/846, 343/853, 343/857, 343/859, 343/865
• US Class Current: 343/795
• CPC Class Codes: H01Q 13/10 Resonant slot antennas
• CPC Class Codes: H01Q 9/005 for radiating non-sinusoidal waves
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407
• CPC Class Codes: H01Q 9/40 Element having extended radiating surface
• CPC Class Codes: H04B 2001/6908 using time hopping

Abstract

An apparatus for coupling a signal supply with an antenna including first and second elements. The signal supply delivers a signal to the antenna at a connection locus. The first element has a first edge and the second element has a second edge; the connection locus includes part of the first and second edges. The apparatus includes a first and second feed structure. The first feed structure extends a feed distance from the signal supply to the second edge and divides the first element into two lands in spaced relation with the first feed structure to establish a separation distance intermediate the first feed structure and the two lands. The second feed structure couples the signal supply with the first proximal edge. The separation distance establishes a signal transmission structure between the two lands and the first feed structure.

Claims

1. An apparatus for establishing signal coupling between a signal supply and an antenna structure;

said antenna structure including a first radiating element and a second radiating element;

said signal supply delivering a signal to said antenna structure at a connection locus in an installed orientation;

said first radiating element having at least one first proximal edge and at least one first distal edge with respect to said signal supply in said installed orientation;

said second radiating element having at least one second proximal edge and at least one second distal edge with respect to said signal supply in said installed orientation;

said connection locus generally including a portion of said first proximal edge and said second proximal edge;

the apparatus comprising;

(a) a first feed structure;

said first feed structure extending a feed distance from said signal supply in said installed orientation to said second proximal edge;

said first feed structure substantially dividing said first radiating element into at least two lands;

said at least two lands being electrically common in spaced relation with said first feed structure to establish a first separation distance intermediate said first feed structure and at least a first selected land of said at least two lands on a first side of said first feed structure substantially along said feed distance and to establish a second separation distance intermediate said first feed structure and at least a second selected land of said at least two lands on a second side of said first feed structure; and

(b) a second feed structure coupling said signal supply with said first proximal edge;

said first separation distance and said second separation distance being dimensioned appropriately to establish a signal transmission structure between said at least two lands and said first feed structure;

said first radiating element, said second radiating element and said first feed structure being substantially planar and being arrayed upon a substantially planar substrate;

said separation distance being varied along said feed distance appropriately to establish a desired gain reponse as a function of frequency to reduce operating in predetermined frequency ranges.

2. An apparatus for establishing signal coupling between a signal supply and an antenna structure as recited in claim 1 wherein said planar substrate has a first face and a second face opposing said first face and wherein said first radiating element, said second radiating element and said first feed structure are arrayed upon said first face.

3. An apparatus for establishing signal coupling between a signal supply and an antenna structure as recited in claim 1 wherein said planar substrate has a first face and a second face opposing said first face and wherein said first radiating element, said second radiating element and said first feed structure are arrayed on at least one of said first face and said second face.

4. An apparatus for establishing signal coupling between a signal supply and an antenna structure as recited in claim 1 wherein said planar substrate has a first face and a second face opposing said first face and wherein said first radiating element, said second radiating element and said first feed structure are arrayed upon said first face.

5. An apparatus for establishing signal coupling between a signal supply and an antenna structure as recited in claim 1 wherein said planar substrate has a first face and a second face opposing said first face and wherein said first radiating element, said second radiating element and said first feed structure are arrayed on at least one of said first face and said second face.

6. An apparatus for transferring electromagnetic energy intermediate a host device and a medium adjacent to the apparatus;

the apparatus comprising;

(a) a signal supply coupled with said host device;

said signal supply conveying a signal;

(b) an antenna structure;

said antenna structure including a first radiating element and a second radiating element;

(c) a transition structure coupling said signal supply with said antenna structure in an installed orientation;

said first radiating element being proximate said signal supply in said installed orientation;

said second radiating element being more distal from said signal supply than said first radiating element in said installed orientation;

said transition structure effecting said coupling of said signal supply at a first locus and at a second locus;

said first locus and said second locus being electrically isolated and separated by a feed distance;

said transition structure and said first radiating element being situated to establish a separation gap substantially along said feed distance appropriate to effect signal coupling of said signal supply with said antenna structure;

said antenna structure and said transition structure being substantially planar and being arrayed upon a substantially planar substrate;

said separation distance being varied along said feed distance appropriately to establish a desired gain response as a function of frequency to reduce operating in predetermined frequency ranges.

7. An apparatus for transferring electromagnetic energy intermediate a host device and a medium adjacent to the apparatus as recited in claim 6 wherein said planar substrate has a first face and a second face opposing said first face and wherein said antenna structure and said transition structure are arrayed upon said first face.

8. An apparatus for transferring electromagnetic energy intermediate a host device and a medium adjacent to the apparatus as recited in claim 6 wherein said planar substrate has a first face and a second face opposing said first face and wherein said antenna structure and said transition structure are arrayed on at least one of said first face and said second face.

9. An apparatus for transferring electromagnetic energy intermediate a host device and a medium adjacent to the apparatus as recited in claim 6 wherein said planar substrate has a first face and a second face opposing said first face and wherein said antenna structure and said transition structure are arrayed upon said first face.

10. An apparatus for transferring electromagnetic energy intermediate a host device and a medium adjacent to the apparatus as recited in claim 6 wherein said planar substrate has a first face and a second face opposing said first face and wherein said antenna structure and said transition structure are arrayed on at least one of said first face and said second face.

11. An apparatus for transferring electromagnetic energy intermediate a host device and a medium adjacent to the apparatus;

the apparatus comprising;

(a) a signal supply coupled with said host device;

said signal supply conveying a signal;

(b) an antenna structure;

said antenna structure including a first radiating element and a second radiating element;

(c) a transition structure coupling said signal supply with said antenna structure in an installed orientation;

said first radiating element being proximate said signal supply in said installed orientation;

said second radiating element being more distal from said signal supply than said first radiating element in said installed orientation;

said transition structure effecting said coupling of said signal supply at a first locus and at a second locus;

said first locus and said second locus being electrically isolated and separated by a feed distance;

said transition structure dividing said first radiating structure into at least two radiating lands;

said at least two radiating lands being situated to establish a plurality of separation gaps;

a first separation gap of said plurality of separation gaps being situated substantially along said feed distance at a first side of said transition structure;

a second separation gap of said plurality of separation gaps being situated substantially along said feed distance at a second side of said transition structure;

said transition structure, said at least two radiating lands and said plurality of separation gaps cooperating to effect signal coupling of said signal supply with said antenna structure;

said antenna structure and said transition structure being substantially planar and being arrayed upon a substantially planar substrate;

said separation distance being varied along said feed distance appropriately to establish a desired gain response as a function of frequency to reduce operating in predetermined frequency ranges.

12. An apparatus for transferring electromagnetic energy intermediate a host device and a medium adjacent to the apparatus as recited in claim 11 wherein said planar substrate has a first face and a second face opposing said first face and wherein said antenna structure and said transition structure are arrayed upon said first face.

13. An apparatus for transferring electromagnetic energy intermediate a host device and a medium adjacent to the apparatus as recited in claim 11 wherein planar substrate has a first face and a second face opposing said first face and wherein said antenna structure and said transition structure are arrayed on at least one of said first face and said second face.

14. An apparatus for transferring electromagnetic energy intermediate a host device and a medium adjacent to the apparatus as recited in claim 11 wherein said planar substrate has a first face and a second face opposing said first face and wherein said antenna structure and said transition structure are arrayed upon said first face.

15. An apparatus for transferring electromagnetic energy intermediate a host device and a medium adjacent to the apparatus as recited in claim 11 wherein said planar substrate has a first face and a second face opposing said first face and wherein said antenna structure and said transition structure are arrayed on at least one of said first face and said second face.