Meander line antenna
First Claim
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1. A meander line antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material; and
at least one meander-shaped conductor disposed at least one of on a surface of said base member and inside said base member;
wherein the resonant frequency f1 of said meander line antenna satisfies the following equation when the resonant frequency f0 of a line-shaped antenna is expressed by f0=(C/.di-elect cons.0.5)/(4×
L), where C is the speed of light, .di-elect cons. is the dielectric constant of the base member, and L is the length of the conductor;
space="preserve" listing-type="equation">f1=A×
T.sup.0.5 ×
f0where A=K/P0.5 -L/P+M, T is the number of turns in said meander-shaped conductor, and K, L, and M are constants, and P is the interval between facing line segments in the conductor.
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Abstract
A meander line antenna includes a rectangular-parallelopiped base member made from a dielectric material having barium oxide, aluminum oxide, and silica as main components, a meander-shaped conductor having, e.g., 10 corners made of copper or a copper alloy by printing, deposition, pasting, or plating inside the base member, and a power-feed terminal for applying a voltage to the conductor. The meander-shaped conductor is formed in the longitudinal direction of the base member. One end of the conductor is led to a surface of the base member to form a power-feed section and is connected to the power-feed terminal. The other end of the conductor serves as an open end inside the base member.
80 Citations
8 Claims
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1. A meander line antenna comprising:
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a base member comprising at least one of a dielectric material and a magnetic material; and at least one meander-shaped conductor disposed at least one of on a surface of said base member and inside said base member; wherein the resonant frequency f1 of said meander line antenna satisfies the following equation when the resonant frequency f0 of a line-shaped antenna is expressed by f0=(C/.di-elect cons.0.5)/(4×
L), where C is the speed of light, .di-elect cons. is the dielectric constant of the base member, and L is the length of the conductor;
space="preserve" listing-type="equation">f1=A×
T.sup.0.5 ×
f0where A=K/P0.5 -L/P+M, T is the number of turns in said meander-shaped conductor, and K, L, and M are constants, and P is the interval between facing line segments in the conductor. - View Dependent Claims (2, 3, 4)
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5. A method of producing a meander line antenna comprising the steps of:
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preparing a base member comprising at least one of a dielectric material and a magnetic material; and disposing at least one meander-shaped conductor at least one of on a surface of said base member and inside said base member; wherein the resonant frequency f1 of said meander line antenna is determined to satisfy the following equation when the resonant frequency f0 of a line-shaped antenna is expressed by f0=(C/.di-elect cons.0.5)/(4×
L), where C is the speed of light, .di-elect cons. is the dielectric constant of the base member, and L is the length of the conductor;
space="preserve" listing-type="equation">f1=A×
T.sup.0.5 ×
f0where A=K/P0.5 -L/P+M, T is the number of turns in said meander-shaped conductor, and K, L, and M are constants, and P is the interval between facing line segments in the conductor. - View Dependent Claims (6)
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7. A method of producing a meander line antenna comprising the steps of:
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preparing a base member comprising at least one of a dielectric material and a magnetic material; disposing at least one meander-shaped conductor at least one of on a surface of said base member and inside said base member; and disposing at least one power-feed terminal on a surface of said base member so that the power-feed terminal is connected to said conductor; wherein the resonant frequency f1 of said meander line antenna is determined to satisfy the following equation when the resonant frequency f0 of a line-shaped antenna is expressed by f0=(C/.di-elect cons.0.5)/(4×
L), where C is the speed of light, .di-elect cons. is the dielectric constant of the base member, and L is the length of the conductor;
space="preserve" listing-type="equation">f1=A×
T.sup.0.5 ×
f0where A=K/P0.5 -L/P+M, T is the number of turns in said meander-shaped conductor, and K, L, and M are constants, and P is the interval between facing line segments in the conductor. - View Dependent Claims (8)
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Specification