Internal utility meter antenna
First Claim
Patent Images
1. A utility meter having an antenna for transmitting data, which comprises:
- a meter housing comprising a generally circular sidewall and a front surface displaying a meter readout;
a radome enclosing the front surface;
the antenna being positioned intermediate the radome and the front surface;
the antenna comprising a dipole radiator that is generally curved to the shape of the meter housing;
the dipole radiator comprising a dielectric substrate carrying two asymmetric curved radiating metallic sheets, each forming a portion of the dipole, which combined extend between 90° and
180°
of the circumference of the utility meter;
a balun feed connected to the metallic sheets; and
a transmission line for coupling to a transmitter.
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Abstract
A utility meter has an internal antenna for transmitting data. The antenna is positioned between the radome of the utility meter and its front surface. The antenna comprises dipole radiator that is generally curved to the shape of the meter housing. The dipole radiator comprises a dielectric substrate carrying two asymmetric curved radiating metallic sheets, each forming a portion of the dipole, which combined extend about 135° of the circumference of the utility meter. A balun feed is connected to the metallic sheets and a transmission line is coupled to a transmitter.
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Citations
17 Claims
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1. A utility meter having an antenna for transmitting data, which comprises:
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a meter housing comprising a generally circular sidewall and a front surface displaying a meter readout; a radome enclosing the front surface; the antenna being positioned intermediate the radome and the front surface; the antenna comprising a dipole radiator that is generally curved to the shape of the meter housing; the dipole radiator comprising a dielectric substrate carrying two asymmetric curved radiating metallic sheets, each forming a portion of the dipole, which combined extend between 90° and
180°
of the circumference of the utility meter;a balun feed connected to the metallic sheets; and a transmission line for coupling to a transmitter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A utility meter having an antenna for transmitting data, which comprises:
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a meter housing comprising a generally circular sidewall and a front surface displaying a meter readout; the antenna being connected to the front surface; the antenna comprising a dipole radiator that is generally curved to the shape of the meter housing; the dipole radiator comprising a dielectric substrate carrying two asymmetric curved radiating metallic sheets, each forming a portion of the dipole, which combined extend between 120° and
150°
of the circumference of the utility meter;the metallic sheets comprising a pair of radiating elements, forming a dual band antenna; one of the radiating elements having a path that is longer than the other, with the longer path serving to generate the lower frequency operating mode of the dual band antenna; a balun feed connected to the metallic sheets; and a transmission line for coupling to a transmitter. - View Dependent Claims (16, 17)
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Specification