US5936579A — Planar antenna array and microstrip radiating ele…

Claim 1

Independent Claim 153 words

A flat antenna array, comprising, a screen plate; an aperture plate which is conductive and overlies said screen plate, said aperture plate having a plurality of apertures through which transmitted or received radiant energy may pass; a dielectric sheet located between said aperture plate and said screen plate; a plurality of reflecting elements, said reflecting elements being located above the aperture plate at locations corresponding to said apertures; said dielectric sheet carrying a network of conductors, said conductors including a plurality of stimulating elements each of which is located correspondingly to one of said apertures, each stimulating element including a first probe and a second probe which together constitute a probe pair, said probes of each probe pair having axes which cross each other; a first output circuit which connects together the first probes on the dielectric sheet; and a second output circuit which connects together the second probes on the dielectric sheet.

Claim 2

Dependent Claim 153 words

A flat antenna array, comprising, a screen plate; an aperture plate which is conductive and overlies said screen plate, said aperture plate having a plurality of apertures through which transmitted or received radiant energy may pass; a dielectric sheet located between said aperture plate and said screen plate; a plurality of reflecting elements, said reflecting elements being located above the aperture plate at locations corresponding to said apertures; said dielectric sheet carrying a network of conductors, said conductors including a plurality of stimulating elements each of which is located correspondingly to one of said apertures, each stimulating element including a first probe and a second probe which together constitute a probe pair, said probes of each probe pair having axes which cross each other; a first output circuit which connects together the first probes on the dielectric sheet; and a second output circuit which connects together the second probes on the dielectric sheet.

Claim 3

Dependent Claim 36 words

A flat antenna array according to claim 1 wherein said reflecting elements are located on a dielectric cover which overlies said aperture plate and has an inner surface provided with an array of said reflecting elements.

Claim 4

Dependent Claim 31 words

A flat antenna array according to claim 1 wherein the screen plate has a plurality of recesses, said recesses being aligned with said apertures to form resonators associated with said waveguides.

Claim 5

Dependent Claim 70 words

A flat antenna array according to claim 1 wherein the first and second probes of each probe pair are orthogonally positioned relative to each other, a loop which is connected to said first and second probes and lies on a line which bisects said probe pair, and a conductor (24) which is perpendicular to the loop, whereby a pair of probes will receive/transmit signals of left and right circular polarizations.

Claim 6

Dependent Claim 40 words

A flat antenna array according to claim 4 wherein the axes of said probes of each probe pair intersect at a crossing point, and the conducting strip is spaced no more than two-tenths of a wavelength from the crossing point.

Claim 7

Dependent Claim 37 words

A flat antenna array according to claim 5 wherein the length of a loop is about 0.35 to 0.45 of a wavelength, and the length of the conducting strip is about 0.2 to 0.35 of a wavelength.

Claim 8

Dependent Claim 36 words

A flat antenna array according to claim 1 wherein, in each probe pair, the first and second probes are orthogonally positioned relative to each other in order to transmit/receive signals of vertical and horizontal linear polarization.

Claim 9

Dependent Claim 25 words

A flat antenna array according to claim 2 wherein each reflecting element on the dielectric cover is a symmetrically arranged group of rectangular reflecting areas.

Claim 10

Dependent Claim 28 words

A flat antenna array according to claim 2 wherein the dielectric cover is spaced from said aperture plate by a distance of 0.4 to 0.6 of a wavelength.

Claim 11

Dependent Claim 54 words

A flat antenna array according to claim 2 wherein partitions are provided on an external surface of the aperture plate and conducting strips are provided on said dielectric cover to provide cells, the centers of which substantially coincide with the centers of said apertures, each reflecting element being located in one of said cells.

Claim 12

Dependent Claim 31 words

A flat antenna array according to claim 10 wherein, at intersections where four cells meet, the partitions have a shape selected from the group consisting of square, diamond, sector or circle.

Claim 13

Dependent Claim 55 words

A flat antenna array according to claim 10 wherein said aperture plate is provided with projecting spacers which are positioned to maintain a fixed distance between the aperture plate and the dielectric sheet, said screen plate having projecting spacers which are positioned to maintain a fixed distance between said screen plate and the dielectric sheet.

Claim 14

Dependent Claim 84 words

A microstrip radiator comprising a screen plate; an aperture plate which overlies said screen plate, said aperture plate having a plurality of apertures through which radiant energy may pass; a sheet provided with a stimulating element which lies between the screen plate and the aperture plate; said stimulating element having two orthogonal probes, a loop, and a conducting strip, said loop being located on a line which bisects said probes and being connected to said probes; said conducting strip being perpendicular to said loop.

Claim 15

Dependent Claim 84 words

A microstrip radiator comprising a screen plate; an aperture plate which overlies said screen plate, said aperture plate having a plurality of apertures through which radiant energy may pass; a sheet provided with a stimulating element which lies between the screen plate and the aperture plate; said stimulating element having two orthogonal probes, a loop, and a conducting strip, said loop being located on a line which bisects said probes and being connected to said probes; said conducting strip being perpendicular to said loop.

Claim 16

Dependent Claim 32 words

A microstrip radiator according to claim 13 wherein said probes intersect at a crossing point, and said conducting strip is spaced no more than two-tenths of a wavelength from said crossing point.

Claim 17

Dependent Claim 36 words

A microstrip radiator according to claim 14 wherein the length of a loop is about 0.35 to 0.45 of a wavelength, and the length of a conducting strip is about 0.2 to 0.35 of a wavelength.

Claim 18

Dependent Claim 30 words

A microstrip radiator according to claim 13 wherein the screen plate has a plurality of recesses, said recesses being aligned with said apertures to form resonators associated with said waveguides.

Claim 19

Dependent Claim 243 words

The flat antenna array, carried out as multi-level structure, comprising, placed one under another, a dielectric cover, conducting plates with set of radiating apertures of a dielectric sheet and screen plates, thus multi-level structure will form set of microstrip radiators, containing stimulating elements with output for signals of various polarizations, and contains two power supply systems of microstrip radiators reception/transmission signals of various polarizations, including elements of a feed and output probes, located in a output waveguide, placed in center of an antenna array, wherein an array of reflecting elements, located above the appropriate radiating apertures of a conducting plate a dielectric sheet is entered is located between screen and conducting plates, thus stimulating elements of microstrip radiators and two power supply systems of microstrip radiators reception/transmission signals of various polarizations are placed on one surface of a dielectric sheet, and the output probes of each power supply system are carried out as a pair of interaxes probes, the axes of each pair of interaxes output probes are cross, the output probes are located in one cross section of a waveguide symmetric concerning an axis of a waveguide, a first one-half of stimulating elements by appropriate output is connected to one probes of pairs of interaxes output probes of the appropriate circuits of a feed, and a second one-half of stimulating elements by appropriate output is connected to other probes of the specified pairs interaxes-output probes of the appropriate circuits of a feed.

Claim 20

Dependent Claim 243 words

The flat antenna array, carried out as multi-level structure, comprising, placed one under another, a dielectric cover, conducting plates with set of radiating apertures of a dielectric sheet and screen plates, thus multi-level structure will form set of microstrip radiators, containing stimulating elements with output for signals of various polarizations, and contains two power supply systems of microstrip radiators reception/transmission signals of various polarizations, including elements of a feed and output probes, located in a output waveguide, placed in center of an antenna array, wherein an array of reflecting elements, located above the appropriate radiating apertures of a conducting plate a dielectric sheet is entered is located between screen and conducting plates, thus stimulating elements of microstrip radiators and two power supply systems of microstrip radiators reception/transmission signals of various polarizations are placed on one surface of a dielectric sheet, and the output probes of each power supply system are carried out as a pair of interaxes probes, the axes of each pair of interaxes output probes are cross, the output probes are located in one cross section of a waveguide symmetric concerning an axis of a waveguide, a first one-half of stimulating elements by appropriate output is connected to one probes of pairs of interaxes output probes of the appropriate circuits of a feed, and a second one-half of stimulating elements by appropriate output is connected to other probes of the specified pairs interaxes-output probes of the appropriate circuits of a feed.

Claim 21

Dependent Claim 23 words

The flat antenna array of claim 17, wherein an array of reflecting elements is placed on an inner surface of a dielectric cover.

Claim 22

Dependent Claim 37 words

The flat antenna array of claim 17, wherein a screen plate is carried out with deepenings, located under a radiating aperture of a conducting plate and forming resonators for excitation of radiating apertures of a conducting plate.

Claim 23

Dependent Claim 101 words

The flat antenna array of claim 18, wherein stimulating elements (microstrip radiators) are carried out as a pair of orthogonal probes, direct corner located on a bisecting-line between them and loop galvanically connected to them and conducting platform placed perpendicularly to a loop, thus the pairs of interaxes output probes are intended for reception/transmission according to signals of the right and left circular polarizations, zone of cross section of a waveguide, located on bisecting-lines between output probes, are intended reception/transmission linear polarizations, and other zones of the specified section-reception/transmission elliptic polarization with factor of an elliptical from 0 up to 1.

Claim 24

Dependent Claim 35 words

The flat antenna array of claim 20, wherein a conducting platform is located a distance from a point of crossing of axes of probes which is no more than two tenth lengths of a wave.

Claim 25

Dependent Claim 29 words

Flat antenna array of claim 21, wherein length of a loop of 0.35-0.45 lengths of a wave, and length of a conducting platform of 0.2-0.35 lengths of a wave.

Claim 26

Dependent Claim 101 words

The flat antenna array of claim 17, wherein stimulating elements (microstrip radiators) are carried out as a pair of orthogonal probes, direct corner located on a bisecting-line between them and loop galvanically connected to them and conducting platform placed perpendicularly to a loop, thus the pairs of interaxes output probes are intended for reception/transmission according to signals of the right and left circular polarizations, zone of cross section of a waveguide, located on bisecting-lines between output probes, are intended reception/transmission linear polarizations, and other zones of the specified section-reception/transmission elliptic polarization with factor of an elliptical from 0 up to 1.

Claim 27

Dependent Claim 35 words

The flat antenna array of claim 23, wherein a conducting platform is located a distance from a point of crossing of axes of probes which is no more than two tenth lengths of a wave.

Claim 28

Dependent Claim 29 words

Flat antenna array of claim 24, wherein length of a loop of 0.35-0.45 lengths of a wave, and length of a conducting platform of 0.2-0.35 lengths of a wave.

Claim 29

Dependent Claim 34 words

The flat antenna array of claim 17, wherein stimulating elements are carried out as two orthogonal probes, thus the pairs of interaxes output probes are intended reception/transmission signals of vertical and horizontal linear polarization.

Claim 30

Dependent Claim 34 words

The flat antenna array of claim 18, wherein stimulating elements are carried out as two orthogonal probes, thus the pairs of interaxes output probes are intended reception/transmission signals of vertical and horizontal linear polarization.

Claim 31

Dependent Claim 38 words

The flat antenna array of claim 18, wherein each reflecting element of an array on an inner surface of a protective dielectric sheet is carried out as a group of symmetric located conducting platforms of the rectangular form.

Claim 32

Dependent Claim 33 words

The flat antenna array of claim 18, wherein a protective dielectric cover is located a distance from a surface of a conducting plate of from 0.4 up to 0.6 lengths of a wave.

Claim 33

Dependent Claim 74 words

The flat antenna array of claim 17, wherein an external surface of a conducting plate and inner surface of a protective dielectric cover are carried out according to a partition and conducting strips, dividing these surfaces on cells, centers of which coincide with centers of the appropriate radiating apertures, thus each reflecting element of an array on an inner surface of a protective dielectric cover is located in the appropriate cell on this surface.

Claim 34

Dependent Claim 27 words

The flat antenna array of claim 30, wherein on a conducting plate in corners of each cell are carried out ledges as squares, triangles, sectors or circles.

Claim 35

Dependent Claim 25 words

The flat antenna array of claim 30, wherein on reflecting and conducting plates are carried out ledges for fixing a dielectric sheet on given distance.

Claim 36

Dependent Claim 74 words

The flat antenna array of claim 18, wherein an external surface of a conducting plate and inner surface of a protective dielectric cover are carried out according to a partition and conducting strips, dividing these surfaces on cells, centers of which coincide with centers of the appropriate radiating apertures, thus each reflecting element of an array on an inner surface of a protective dielectric cover is located in the appropriate cell on this surface.

Claim 37

Dependent Claim 27 words

The flat antenna array of claim 33, wherein on a conducting plate in corners of each cell are carried out ledges as squares, triangles, sectors or circles.

Claim 38

Dependent Claim 25 words

The flat antenna array of claim 33, wherein on reflecting and conducting plates are carried out ledges for fixing a dielectric sheet on given distance.

Claim 39

Dependent Claim 78 words

The microstrip radiator, containing, placed one under other conducting plate with an other conducting a radiating aperture placed an one plate with a stimulating element carried out on it, including two orthogonal probes, and screen plate, wherein in a stimulating element are entered a loop and conducting platform, and the loop is located on a bisecting-line of a direct corner between probes and galvanically is connected to them, and the conducting platform is placed perpendicularly to a loop.

Claim 40

Dependent Claim 78 words

The microstrip radiator, containing, placed one under other conducting plate with an other conducting a radiating aperture placed an one plate with a stimulating element carried out on it, including two orthogonal probes, and screen plate, wherein in a stimulating element are entered a loop and conducting platform, and the loop is located on a bisecting-line of a direct corner between probes and galvanically is connected to them, and the conducting platform is placed perpendicularly to a loop.

Claim 41

Dependent Claim 32 words

The microstrip radiator of claim 36, wherein a conducting platform is located a distance from a point of crossing of axes of probes no more than two tenth lengths of a wave.

Claim 42

Dependent Claim 28 words

Microstrip radiator of claim 37, wherein length of a loop of 0.35-0.45 lengths of a wave, and length of a conducting platform of 0.2-0.35 lengths of a wave.

Claim 43

Dependent Claim 38 words

The microstrip radiator of claim 36, wherein a screen plate is carried out with a deepening, located under a radiating aperture of a conducting plate and forming the resonator for excitation of radiating apertures of a conducting plate.

Claim 44

Dependent Claim 151 words

A flat antenna array, comprising, a screen plate; an aperture plate which is conductive and overlies said screen plate, said aperture plate having a plurality of apertures through which transmitted or received radiant energy may pass; a dielectric sheet located between said aperture plate and said screen plate; said dielectric sheet carrying a network of conductors, said conductors including a plurality of stimulating elements each of which is located correspondingly to one of said apertures, each stimulating element including a first probe and a second probe which together constitute a probe pair, said probes of each probe pair having axes which cross each other; a first output circuit which connects together the first probes on the dielectric sheet, and a second output circuit which connects together the second probes on the dielectric sheet; said screen plate having a plurality of recesses which are located correspondingly with said apertures to form resonators.

Claim 45

Dependent Claim 151 words

A flat antenna array, comprising, a screen plate; an aperture plate which is conductive and overlies said screen plate, said aperture plate having a plurality of apertures through which transmitted or received radiant energy may pass; a dielectric sheet located between said aperture plate and said screen plate; said dielectric sheet carrying a network of conductors, said conductors including a plurality of stimulating elements each of which is located correspondingly to one of said apertures, each stimulating element including a first probe and a second probe which together constitute a probe pair, said probes of each probe pair having axes which cross each other; a first output circuit which connects together the first probes on the dielectric sheet, and a second output circuit which connects together the second probes on the dielectric sheet; said screen plate having a plurality of recesses which are located correspondingly with said apertures to form resonators.

Claim 46

Dependent Claim 182 words

A flat antenna array, comprising, a screen plate; an aperture plate which is conductive and overlies said screen plate, said aperture plate having a plurality of apertures through which transmitted or received radiant energy may pass; a dielectric sheet located between said aperture plate and said screen plate; said dielectric sheet carrying a network of conductors, said conductors including a plurality of stimulating elements each of which is located correspondingly to one of said apertures, each stimulating element including a first probe and a second probe which together constitute a probe pair, said probes of each probe pair relative to each other and having axes which cross each other; a first output circuit which connects together the first probes on the dielectric sheet, and a second output circuit which connects together the second probes on the dielectric sheet; a loop which is connected to said first and second probes and lies on a line which bisects said probe pair, and a conductor which is perpendicular to the loop, whereby a pair of probes will receive/transmit signals of left and right circular polarizations.

Claim 47

Dependent Claim 182 words

A flat antenna array, comprising, a screen plate; an aperture plate which is conductive and overlies said screen plate, said aperture plate having a plurality of apertures through which transmitted or received radiant energy may pass; a dielectric sheet located between said aperture plate and said screen plate; said dielectric sheet carrying a network of conductors, said conductors including a plurality of stimulating elements each of which is located correspondingly to one of said apertures, each stimulating element including a first probe and a second probe which together constitute a probe pair, said probes of each probe pair relative to each other and having axes which cross each other; a first output circuit which connects together the first probes on the dielectric sheet, and a second output circuit which connects together the second probes on the dielectric sheet; a loop which is connected to said first and second probes and lies on a line which bisects said probe pair, and a conductor which is perpendicular to the loop, whereby a pair of probes will receive/transmit signals of left and right circular polarizations.

Claim 48

Dependent Claim 39 words

A flat antenna array according to claim 41 wherein the axes of said probes of each probe pair intersect at a crossing point, and the conductor is spaced no more than two-tenths of a wavelength from the crossing point.

Claim 49

Dependent Claim 22 words

A flat antenna array according to claim 42 wherein the length of a loop is about 0.35 to 0.45 of a wavelength.

Claim 50

Dependent Claim 164 words

A flat antenna array, comprising, a screen plate; an aperture plate which is conductive and overlies said screen plate, said aperture plate having a plurality of apertures through which transmitted or received radiant energy may pass; a dielectric sheet located between said aperture plate and said screen plate; a dielectric cover which overlies said aperture plate and has an inner surface Provided with an array of reflecting elements, each reflecting element being a symmetrically arranged group of rectangular reflecting areas; said dielectric sheet carrying a network of conductors, said conductors including a plurality of stimulating elements each of which is located correspondingly one of said apertures, each stimulating element including a first probe and a second probe which together constitute a probe pair, said probes of each probe pair having axes which cross each other; a first output circuit which connects together the first probes on the dielectric sheet, and a second output circuit which connects together the second probes on the dielectric sheet.

Claim 51

Dependent Claim 164 words

A flat antenna array, comprising, a screen plate; an aperture plate which is conductive and overlies said screen plate, said aperture plate having a plurality of apertures through which transmitted or received radiant energy may pass; a dielectric sheet located between said aperture plate and said screen plate; a dielectric cover which overlies said aperture plate and has an inner surface Provided with an array of reflecting elements, each reflecting element being a symmetrically arranged group of rectangular reflecting areas; said dielectric sheet carrying a network of conductors, said conductors including a plurality of stimulating elements each of which is located correspondingly one of said apertures, each stimulating element including a first probe and a second probe which together constitute a probe pair, said probes of each probe pair having axes which cross each other; a first output circuit which connects together the first probes on the dielectric sheet, and a second output circuit which connects together the second probes on the dielectric sheet.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2002-08-09	2003-02-08	2003-08-10	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2006-08-09	2007-02-08	2007-08-10	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2010-08-09	2011-02-08	2011-08-10	$7700.00	Window Closed / Lapsed

Planar antenna array and microstrip radiating element for planar antenna array

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