US5220336A — Vehicle window glass antenna for transmission and…

Claim 1

Independent Claim 256 words

An antenna attached to a vehicle window glass for transmitting and receiving ultrashort waves, the window glass provided with an array of defogging heater strips, the antenna entirely disposed in a space between the array of heater strips and a lower edge of the window glass, the antenna comprising: a primary antenna which is a combination of at least two parallel vertical elements each of which is a conductive linear element extending perpendicular to a horizontal line and at least two horizontal elements each of which is a conductive linear element extending horizontally and directly connecting with at least one of said vertical elements such that said vertical elements and said horizontal elements form a rectangular grid as the major part of the primary antenna, in said grid the spacings between said vertical elements and the spacings between said horizontal elements being not greater than 20 mm, the primary antenna being arranged within a rectangular area ranging from 10 to 120 mm in horizontal width and from 20 to 60 mm in length perpendicular to the horizontal width; a secondary antenna which is a conductive and horizontally elongate element which extends in a space between said rectangular area and the lower edge of the window glass and has a length in the range from 30 to 300 mm; and a feeder which is a coaxial cable having an inner conductor and an outer conductor with insulation therebetween, said primary antenna being connected with said inner conductor and said secondary antenna being connected with said outer conductor.

Claim 2

Dependent Claim 256 words

An antenna attached to a vehicle window glass for transmitting and receiving ultrashort waves, the window glass provided with an array of defogging heater strips, the antenna entirely disposed in a space between the array of heater strips and a lower edge of the window glass, the antenna comprising: a primary antenna which is a combination of at least two parallel vertical elements each of which is a conductive linear element extending perpendicular to a horizontal line and at least two horizontal elements each of which is a conductive linear element extending horizontally and directly connecting with at least one of said vertical elements such that said vertical elements and said horizontal elements form a rectangular grid as the major part of the primary antenna, in said grid the spacings between said vertical elements and the spacings between said horizontal elements being not greater than 20 mm, the primary antenna being arranged within a rectangular area ranging from 10 to 120 mm in horizontal width and from 20 to 60 mm in length perpendicular to the horizontal width; a secondary antenna which is a conductive and horizontally elongate element which extends in a space between said rectangular area and the lower edge of the window glass and has a length in the range from 30 to 300 mm; and a feeder which is a coaxial cable having an inner conductor and an outer conductor with insulation therebetween, said primary antenna being connected with said inner conductor and said secondary antenna being connected with said outer conductor.

Claim 3

Dependent Claim 31 words

An antenna according to claim 1, wherein said rectangular area ranges from 15 to 80 mm in horizontal width and from 30 to 50 mm in length perpendicular to the width.

Claim 4

Dependent Claim 26 words

An antenna according to claim 1, wherein said spacings between said vertical elements and said spacings between said horizontal elements are not smaller than 4 mm.

Claim 5

Dependent Claim 27 words

An antenna according to claim 1, wherein the length of said horizontally elongate element of said secondary antenna is in the range from 60 to 150 mm.

Claim 6

Dependent Claim 26 words

An antenna according to claim 1, further comprising at least one auxiliary antenna element which is a conductive linear element and connects with said secondary antenna.

Claim 7

Dependent Claim 31 words

An antenna according to claim 1, further comprising at least one auxiliary antenna element which is a conductive linear element and is connected to said inner conductor of said coaxial cable.

Claim 8

Dependent Claim 29 words

An antenna according to claim 1, wherein said primary antenna has a longitudinal center axis parallel to said vertical elements and is symmetrical with respect to said center axis.

Claim 9

Dependent Claim 20 words

An antenna according to claim 7, wherein said center axis approximately bisects said horizontally elongate element of said secondary antenna.

Claim 10

Dependent Claim 27 words

An antenna according to claim 1, wherein said rectangular area is located such that a vertical center axis of the window glass passes through said rectangular area.

Claim 11

Dependent Claim 54 words

An antenna according to claim 1, wherein said rectangular area is spaced from a vertical center axis of the window glass, the antenna further comprising an auxiliary antenna element which is a conductive linear element and extends from one end of said second antenna substantially parallel to a side edge of the window glass.

Claim 12

Dependent Claim 249 words

An antenna attached to a vehicle window glass for transmitting and receiving ultrashort waves, the window glass provided with an array of defogging heater strips, the antenna entirely disposed in a space between the array of heater strips and a lower edge of the window glass, the antenna comprising: a primary antenna which is a combination of at least two parallel vertical elements each of which is a conductive linear element extending perpendicular to a horizontal line, at least two horizontal elements each of which is a conductive linear element extending horizontally from a same end of respective ones of said vertical elements and an impedance matching element which is a conductive linear element bent so as to have at least one horizontal part crossing said vertical elements and at least one vertical part extending parallel to said vertical elements, the primary antenna being arranged within a rectangular area ranging from 10 to 120 mm in horizontal width and from 30 to 100 mm in length perpendicular to the horizontal width; a secondary antenna which is a conductive and horizontally elongate element which extends in a space between said rectangular area and the lower edge of the window glass and has a length in the range from 30 to 300 mm; and a feeder which is a coaxial cable having an inner conductor and an outer conductor with insulation therebetween, said primary antenna being connected with said inner conductor and said secondary antenna being connected with said outer conductor.

Claim 13

Dependent Claim 249 words

An antenna attached to a vehicle window glass for transmitting and receiving ultrashort waves, the window glass provided with an array of defogging heater strips, the antenna entirely disposed in a space between the array of heater strips and a lower edge of the window glass, the antenna comprising: a primary antenna which is a combination of at least two parallel vertical elements each of which is a conductive linear element extending perpendicular to a horizontal line, at least two horizontal elements each of which is a conductive linear element extending horizontally from a same end of respective ones of said vertical elements and an impedance matching element which is a conductive linear element bent so as to have at least one horizontal part crossing said vertical elements and at least one vertical part extending parallel to said vertical elements, the primary antenna being arranged within a rectangular area ranging from 10 to 120 mm in horizontal width and from 30 to 100 mm in length perpendicular to the horizontal width; a secondary antenna which is a conductive and horizontally elongate element which extends in a space between said rectangular area and the lower edge of the window glass and has a length in the range from 30 to 300 mm; and a feeder which is a coaxial cable having an inner conductor and an outer conductor with insulation therebetween, said primary antenna being connected with said inner conductor and said secondary antenna being connected with said outer conductor.

Claim 14

Dependent Claim 37 words

An antenna according to claim 11, wherein at least one of said vertical elements of said primary antenna extends from an end of one of said horizontal elements toward said horizontally elongate element of said secondary antenna.

Claim 15

Dependent Claim 34 words

An antenna according to claim 11, wherein one of said vertical elements of said primary antenna connects with one of said horizontal elements of said primary antenna so as to form a T-shaped element.

Claim 16

Dependent Claim 17 words

An antenna according to claim 11, wherein said impedance matching element forms the perimeter of a rectangle.

Claim 17

Dependent Claim 22 words

An antenna according to claim 11, wherein said impedance matching element is bent into the form of three sides of a rectangle.

Claim 18

Dependent Claim 34 words

An antenna according to claim 11, wherein said impedance matching element is bent into the form of three sides of a rectangle and two opposite end portions of the remaining side of said rectangle.

Claim 19

Dependent Claim 27 words

An antenna according to claim 11, wherein the length of said horizontally elongate element of said secondary antenna is in the range from 60 to 150 mm.

Claim 20

Dependent Claim 26 words

An antenna according to claim 11, further comprising at least one auxiliary antenna element which is a conductive linear element and connects with said secondary antenna.

Claim 21

Dependent Claim 29 words

An antenna according to claim 11, wherein said primary antenna has a longitudinal center axis parallel to said vertical elements and is symmetrical with respect to said center axis.

Claim 22

Dependent Claim 20 words

An antenna according to claim 19, wherein said center axis approximately bisects said horizontally elongate element of said secondary antenna.

Claim 23

Dependent Claim 27 words

An antenna according to claim 11, wherein said rectangular area is located such that a vertical center axis of the window glass passes through said rectangular area.

Claim 24

Dependent Claim 251 words

An antenna attached to a vehicle window glass for transmitting and receiving ultrashort waves, the window glass provided with an array of defogging heater strips, the antenna entirely disposed in a space between the array of heater strips and a lower edge of the window glass, the antenna comprising: a primary antenna which is a combination of at least two parallel vertical elements each of which is a conductive linear element extending perpendicular to a horizontal line and another conductive linear element which is bent at right angles so as to constitute the perimeter of a closed plane figure in the shape of a rectangle having a rectangular cut in one side thereof, said rectangle being arranged such that said one side becomes a horizontal side, each of said vertical elements directly connecting with at least one horizontal side of said rectangle, the primary antenna being arranged within a rectangular area ranging from 20 to 75 mm in horizontal width and from 20 to 120 mm in length perpendicular to the horizontal width; a secondary antenna which is a conductive and horizontally elongate element which extends in a space between said rectangular area and the lower edge of the window glass and has a length in the range from 30 to 300 mm; and a feeder which is a coaxial cable having an inner conductor and an outer conductor with insulation therebetween, said primary antenna being connected with said inner conductor and said secondary antenna being connected with said outer conductor.

Claim 25

Dependent Claim 251 words

An antenna attached to a vehicle window glass for transmitting and receiving ultrashort waves, the window glass provided with an array of defogging heater strips, the antenna entirely disposed in a space between the array of heater strips and a lower edge of the window glass, the antenna comprising: a primary antenna which is a combination of at least two parallel vertical elements each of which is a conductive linear element extending perpendicular to a horizontal line and another conductive linear element which is bent at right angles so as to constitute the perimeter of a closed plane figure in the shape of a rectangle having a rectangular cut in one side thereof, said rectangle being arranged such that said one side becomes a horizontal side, each of said vertical elements directly connecting with at least one horizontal side of said rectangle, the primary antenna being arranged within a rectangular area ranging from 20 to 75 mm in horizontal width and from 20 to 120 mm in length perpendicular to the horizontal width; a secondary antenna which is a conductive and horizontally elongate element which extends in a space between said rectangular area and the lower edge of the window glass and has a length in the range from 30 to 300 mm; and a feeder which is a coaxial cable having an inner conductor and an outer conductor with insulation therebetween, said primary antenna being connected with said inner conductor and said secondary antenna being connected with said outer conductor.

Claim 26

Dependent Claim 31 words

An antenna according to claim 22, wherein said rectangular area ranges from 35 to 55 mm in horizontal width and from 30 to 70 mm in length perpendicular to the width.

Claim 27

Dependent Claim 31 words

An antenna according to claim 22, wherein said vertical elements cross a horizontal side of said rectangle and extend to another horizontal side which defines the bottom of said rectangular cut.

Claim 28

Dependent Claim 22 words

An antenna according to claim 22, wherein said vertical elements extend from a horizontal side of said rectangle without entering said rectangle.

Claim 29

Dependent Claim 15 words

An antenna according to claim 22, wherein said vertical elements extend through said rectangular cut.

Claim 30

Dependent Claim 45 words

An antenna according to claim 22, further comprising at least one auxiliary antenna element which is a conductive linear element and partially extends parallel to said vertical elements, said at least one auxiliary antenna element being connected with said inner conductor of said coaxial cable.

Claim 31

Dependent Claim 40 words

An antenna according to claim 22, further comprising at least one auxiliary antenna element which is a conductive linear element and partially extends parallel to said vertical elements, said at least one auxiliary antenna element connecting with said secondary antenna.

Claim 32

Dependent Claim 29 words

An antenna according to claim 22, wherein said primary antenna has a longitudinal center axis parallel to said vertical elements and is symmetrical with respect to said center axis.

Claim 33

Dependent Claim 20 words

An antenna according to claim 29, wherein said center axis approximately bisects said horizontally elongate element of said secondary antenna.

Claim 34

Dependent Claim 27 words

An antenna according to claim 22, wherein said rectangular area is located such that a vertical center axis of the window glass passes through said rectangular area.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1996-06-14	1996-12-14	1997-06-15	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2000-06-14	2000-12-14	2001-06-15	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2004-06-14	2004-12-14	2005-06-15	$7700.00	Window Closed / Lapsed

Vehicle window glass antenna for transmission and reception of ultrashort waves

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