Array antenna capable of controlling antenna characteristic
First Claim
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1. An array antenna allowing electrical switching of directivity, comprising:
- a feeder element;
a parasitic element having a variable capacitance element loaded, and implemented by a slot line; and
a directivity switching unit varying a capacitance of said variable capacitance element and switching said directivity.
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Abstract
An array antenna includes a feeder element, a parasitic element implemented by a slot line, a variable capacitance element, and a directivity switching unit. The variable capacitance element is loaded in the slot line. The directivity switching unit supplies a control voltage to the variable capacitance element in order to vary the capacitance, and switches directivity of the array antenna.
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Citations
20 Claims
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1. An array antenna allowing electrical switching of directivity, comprising:
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a feeder element;
a parasitic element having a variable capacitance element loaded, and implemented by a slot line; and
a directivity switching unit varying a capacitance of said variable capacitance element and switching said directivity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification