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US 6,452,569 B1Granted
Antenna, and manufacturing method therefor
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsHeung-Soo Park, Jae-Suk Sung
Life of this patent
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Abstract
An antenna and a manufacturing method therefor are disclosed, in which the sensitivity characteristic of the dual band antenna utilizing a plurality of frequency bands is improved, and at the same time, the antenna can be miniaturized. A first cylindrical body 110 around which a primary coil 100 is spirally wound is inserted into a second cylindrical body 220 around which a secondary coil is wound. A projected portion of the primary coil 100 is electrically connected to the secondary coil 200, thereby forming a dual band antenna 300.
Claims24
An antenna, comprising:
- a spiral primary coil having certain pitches;
- and
- a spiral secondary coil disposed outside the primary coil and having pitches larger than those of the primary coil, the secondary coil having one end connected to one end of the primary coil, extending toward the other end of the primary coil, and ending at the other end of the secondary coil which is adapted to be a feeding point so that the entire primary and secondary coils are effective for operation in a frequency band, and the secondary coil is effective for operation in another, different frequency band.
A method for manufacturing an antenna, comprising the steps of:
- forming a first cylindrical body;
- forming a first securing spiral channel around the first cylindrical body starting from an end of the first cylindrical body to a certain part of the first cylindrical body and having a predetermined length and predetermined pitches;
- installing a primary coil in the first securing spiral channel;
- forming a second cylindrical body having an inside diameter same as or larger than an outside diameter of the first cylindrical body, so as to receive the first cylindrical body;
- forming a second securing spiral channel around the second cylindrical body starting from an end of the second cylindrical body to a certain part of the second cylindrical body and having a predetermined length and predetermined pitches;
- installing a secondary coil in the second securing spiral channel;
- and
- inserting the first cylindrical body into the second cylindrical body, and
- electrically connecting a portion of the exposed secondary coil of the second cylindrical body to a portion of the exposed primary coil of the first cylindrical body.
6 more elements
A method for manufacturing an antenna, comprising the steps of:
- i) preparing an inner ceramic substrate and outer ceramic substrates;
- ii) forming a plurality of via holes in each of the inner and outer ceramic substrates, and filling a conductive paste in the via holes;
- iii) forming primary coil patterns on opposite surfaces of the inner ceramic substrate so that the primary coil patterns are connected together in spiral form through a set of the via holes of the inner substrate so as to form a primary coil
- iv) forming secondary coil patterns on a surface of each of the outer ceramic substrates;
- v) bonding the inner and outer substrates together with the inner substrate having the primary coil disposed between the outer substrates so that the secondary coil patterns are connected together in spiral form through another set of the via holes of the inner substrate and the via holes of the outer substrates so as to form a secondary coil.
2 more elements
A method for manufacturing an antenna, comprising the steps of:
- i) preparing green sheets;
- ii) forming a plurality of via holes in each of the green sheets, and filling a conductive material in each of the via holes;
- iii) forming primary coil patterns on a surface of each of at least two inner sheets among said green sheets;
- iv) forming secondary coil patterns on a surface of each of at least two outer sheets among said green sheets;
- v) stacking the inner sheets between the outer sheets so as to align the respective via holes of the inner and outer sheets;
- and
- vi) baking the sheets of the stacked structure with the primary and secondary coil patterns formed thereon at a predetermined temperature so as to complete the antenna.
4 more elements
A method for manufacturing an antenna, comprising the steps of:
- i) preparing first and second flexible substrates;
- ii) forming a first conductive pattern on a major face of the first flexible substrate in a diagonal direction thereof;
- iii) forming a plurality of second conductive patterns on the second flexible substrate so that the second conductive patterns are inclined and spaced by predetermined gaps;
- iv) winding the second flexible substrate around a support;
- and
- v) winding the first flexible substrate around the support and overlying the second flexible substrate.
3 more elements
Dependencies are inferred from the claim text.