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US 6,720,925 B2Granted
Surface-mountable dual-band monopole antenna of WLAN application
AssigneeAccton Technology Corporation
InventorsKin Lu Wong, Fa Shian Chang
Life of this patent
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Abstract
A surface-mountable dual-band monopole antenna includes a substrate and a folded radiative metallic patch with a small metallic lug. The folded radiative metallic patch encloses the substrate, and the small metallic lug protrudes from the substrate, wherein a feeding point is located on the small metallic lug for transmitting the signals.
Claims17
A dual-band monopole antenna comprising:
- a substrate;
- a planar metallic patch surface-mounted on at least three sides of the substrate for generating a first frequency band and a second frequency band, the planar metallic patch having a substantially rectangular shape with a slot of substantially “L” shape to form a relatively long free end and a relatively short free end;
- and
- a feeding point coupled to the relatively short free end for signal transmission.
1 more element
An antenna structure for wireless communication comprising:
- a card adapted to a wireless device;
- at least one substrate formed on one side of the card;
- and
- at least one antenna surface-mounted on the at least one substrate, the at least one antenna having a planar metallic patch surface-mounted on at least three sides of the at least one substrate for generating a first frequency band and a second frequency band, the planar metallic patch having a substantially rectangular shape with a slot of substantially “L” shape to form a relatively long free end and a relatively short free end each spaced apart, and a feeding point coupled to the relatively short free end for signal transmission.
1 more element
A method of forming a dual-band monopole antenna structure comprising the steps of:
- providing a substrate, and a planar metallic patch of substantially rectangular in shape;
- patterning a slot of substantially “L” shape on the planar metallic patch to form a relatively long free end and a relatively short free end;
- folding and surface-mounting the patterned planar metallic patch on at least three sides of the substrate to generate a first frequency band and a second frequency band;
- coupling a feeding point to the relatively short free end for signal transmission;
- and
- using the relatively short free end for impedance matching.
3 more elements
Dependencies are inferred from the claim text.