US 6,642,903 B2Granted

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

AssigneeTime Domain Corporation

InventorHans Gregory Schantz

Life of this patent

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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.

Claims15

Dependent claims

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.

12 more elements

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.

10 more elements

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.

14 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/855,413Filed 15 May 2001
Published: US 2002/0175876 A128 Nov 2002
Granted: 4 Nov 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H01Q 9/40
With feed to end of elongated active element, e.g. unipole: element having extended radiating surface
H01Q 9/005
Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements:…
H01Q 9/285
Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having…:…
H01Q 13/10
Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a…:…