Distributed phase type circular polarized wave antenna and high-frequency module using the same
First Claim
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1. A distributed phase type circular polarized wave antenna, comprising:
- a power feed point and a plurality of narrow conductors formed on a common plane, the narrow conductors having a substantially one-dimensional current distribution and being distributed in two dimensions,wherein the power feed point comprises a signal connection point and a ground connection point,wherein a signal line and a ground connection line are electrically connected to the narrow conductors respectively,wherein absolute values of sums of projections of complex vectors of current distributions induced on the narrow conductors in first and second directions orthogonal to each other defined on the common plane are determined in amplitude and phase, such that an amplitude ratio of the absolute values is from 0.7 to 1.3 and a phase difference of the absolute values is from 80°
to 100°
.
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Abstract
A distributed phase type circular polarized wave antenna is composed of a group of narrow conductor lines 2a, 2b, 2c and 2d, and the group of the narrow conductor lines 2a, 2b, 2c and 2d are laid out in a two-dimensional plane. Complex vectorial sums of respective projections of current induced in each point of the narrow conductor lines 2a, 2b, 2c and 2d in two directions orthogonal to each other in the two-dimensional plane are determined, such that amplitudes of the complex vectorial sums are equal to each other in the two directions and a phase difference between the complex vectorial sums in the two directions is 90°.
12 Citations
26 Claims
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1. A distributed phase type circular polarized wave antenna, comprising:
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a power feed point and a plurality of narrow conductors formed on a common plane, the narrow conductors having a substantially one-dimensional current distribution and being distributed in two dimensions, wherein the power feed point comprises a signal connection point and a ground connection point, wherein a signal line and a ground connection line are electrically connected to the narrow conductors respectively, wherein absolute values of sums of projections of complex vectors of current distributions induced on the narrow conductors in first and second directions orthogonal to each other defined on the common plane are determined in amplitude and phase, such that an amplitude ratio of the absolute values is from 0.7 to 1.3 and a phase difference of the absolute values is from 80°
to 100°
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A distributed phase type circular polarized wave antenna, comprising:
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a power feed point and a plurality of narrow conductors formed on a common convex curved surface, the narrow conductors having a substantially one-dimensional current distribution and being distributed in two dimensions, wherein; absolute values of sums of projections, on a plane contacting the common convex curved surface, of complex vector additional values of respective current distributions induced on the narrow conductors in first and second directions orthogonal to each other defined on the common convex curved surface are determined in amplitude and phase, such that an amplitude ratio of the absolute values is from 0.7 to 1.3 and a phase difference of the absolute values is from 80°
to 100°
. - View Dependent Claims (18, 19)
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20. A high-frequency module, comprising:
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a distributed phase type circular polarized wave antenna which comprises; a power feed point; and a plurality of narrow conductors formed on a common plane, the narrow conductors having a substantially one-dimensional current distribution and being distributed in two dimensions, wherein the power feed point comprises a signal connection point and a ground connection point, wherein a signal line and a ground connection line are electrically connected to the narrow conductors respectively, and wherein absolute values of sums of projections of complex vectors of current distributions induced on the narrow conductors in first and second directions orthogonal to each other defined on the common plane are determined in amplitude and phase, such that an amplitude ratio of the absolute values is from 0.7 to 1.3 and a phase difference of the absolute values is from 80°
to 100°
. - View Dependent Claims (21, 22)
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23. A portable radio terminal, comprising:
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a distributed phase type circular polarized wave antenna which comprises; a power feed point; and a plurality of narrow conductors formed on a common plane, the narrow conductors having a substantially one-dimensional current distribution and being distributed in two dimensions, wherein the power feed point comprises a signal connection point and a ground connection point, wherein a signal line and a ground connection line are electrically connected to the narrow conductors respectively, and wherein absolute values of sums of projections of complex vectors of current distributions induced on the narrow conductors in first and second directions orthogonal to each other defined on the common plane are determined in amplitude and phase, such that an amplitude ratio of the absolute values is from 0.7 to 1.3 and a phase difference of the absolute values is from 80°
to 100°
. - View Dependent Claims (24, 25, 26)
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Specification