Multi band built-in antenna
First Claim
1. A planar inverted F antenna, comprising:
- a feed unit having a feed pin coupled to an external circuit, having a feed line having a first end coupled to said feed pin and having a predetermined length;
a radiating patch disposed on a plane spaced-apart from said feed unit and coupled to a portion of said feed unit to induce a current directed from said feed unit; and
a shorting member having one end coupled to said radiating patch and the other end coupled to a ground.
1 Assignment
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Accused Products
Abstract
A planar inverted F antenna (PIFA) includes a feed pin supplying a current, a feed line having one end electrically coupled to one end of the feed pin and having a predetermined resonance length, a coupling pin coupled to the other end of the feed line, and a radiating patch formed on a plane spaced-apart from the feed line by a predetermined distance to induce the current supplied through the other end of the coupling pin, and a slot having one end starting at a portion of an edge and the other end disposed in an inside portion of the radiating patch, and a shorting pin having one end coupled to the radiating patch and the other end coupled to a ground. The PIFA becomes smaller by using an electrical resonance length of the feed line, a shape of the feed line, and the open stub and the matching pad, improves the flexibility of the antenna design, and obtains a wider frequency band.
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Citations
53 Claims
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1. A planar inverted F antenna, comprising:
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a feed unit having a feed pin coupled to an external circuit, having a feed line having a first end coupled to said feed pin and having a predetermined length;
a radiating patch disposed on a plane spaced-apart from said feed unit and coupled to a portion of said feed unit to induce a current directed from said feed unit; and
a shorting member having one end coupled to said radiating patch and the other end coupled to a ground. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A planar inverted F antenna, comprising:
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a feed pin through which a current is directed;
a feed line having a first end coupled to the feed pin and a second end extended from the first end by a predetermined length;
a coupling pin having one end coupled to said second end of said feed line;
a radiating patch formed on a surface spaced-apart from said feed line to induce the current directed through the other end of said coupling pin, having a slot having one portion starting from one edge of said radiating patch and another portion extended from the one portion to be disposed in an inside of said radiating patch; and
a shorting member having one end coupled to one end of said radiating patch and the other end coupled to a ground unit. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A planar inverted F antenna in a communication terminal having a ground comprising:
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a feed pin having a feed pad formed on one end thereof to direct a current;
a feed line having a first end coupled to said feed pin and having a second end extended from said first end by a predetermined length;
a radiating patch formed on a surface spaced-apart from said feed line to induce the current transmitted through the feed pin; and
a shorting member having one end coupled to said radiating patch, the other end coupled to the feed line, and a coupling pad disposed adjacent to the other end of to be coupled to the ground. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A planar inverted F antenna in a telecommunication terminal having a ground, comprising:
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a feed pin directing a current;
a first feed line having one end coupled to said feed pin and having a first predetermined length;
a second feed line having one end coupled to said feed pin, disposed to be parallel to said first feed line;
a radiating patch formed on a surface spaced-apart from said first and second feed lines by a predetermined distance, having a slot starting one edge end being extended to another edge of the radiating patch to divide said radiating patch into a first patch area coupled to said feed pin and a second patch area coupled to the other end of said second feed line; and
a shorting member having a coupling pad formed on one end of said shorting member to be coupled to said ground, having the other end coupled to said first patch area of said radiating patch, said coupling pad coupled to the other end of said first feed line. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53)
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Specification