Multi-band antenna for use in a portable telecommunication apparatus
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJohan Andersson, Andre Da Silva Frazao
Life of this patent
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Abstract
A multi-band antenna for use in a portable telecommunication apparatus has a continuous trace (11) of conductive material. The continuous trace has a first conductive portion (13) arranged in a first plane and a second conductive portion (15-16) arranged in a second plane. The second plane is different from the first plane. The first conductive portion has a feeding end (12) to be connected to radio circuitry in the portable telecommunication apparatus. The second conductive portion (15-16) has a distinctly smaller width than the first conductive portion (13).
Claims25
A multi-band antenna for use in a portable telecommunication apparatus (1), the antenna comprising a continuous trace (11) of conductive material, the continuous trace having a first conductive portion (13) arranged in a first plane and a second conductive portion (15-16) arranged in a second plane, the second plane being different from the first plane, the first conductive portion having a feeding end (12) to be connected to radio circuitry (9) in the portable telecommunication apparatus, characterized in that
- the second conductive portion (15-16) has a distinctly smaller width than the first conductive portion (13).
An antenna according to any preceding claim, provided with a coating of plastic or rubber.
An antenna according to any preceding claim, further comprising a dielectric member (18) positioned between the first and second conductive portions (13, 15-16).
An antenna according to any preceding claim, wherein the antenna is adapted to operate in at least three frequency bands.
An antenna according to any preceding claim, wherein there is a factor of 1:10 in difference in width between the second conductive portion (15-16) and the first conductive portion (13).
A portable telecommunication apparatus (1) for use in a wireless telecommunications system, comprising an antenna according to any preceding claim.
Dependencies are inferred from the claim text.