Communications: radio wave antennas – Antennas – Microstrip
Patent
1998-03-16
2000-02-15
Le, Hoanganh
Communications: radio wave antennas
Antennas
Microstrip
343702, H01Q 138, H01Q 124
Patent
active
060258020
ABSTRACT:
A new category of mobile communications antenna is implemented in a single layer of conducting material. Wire-slot sections, including wire-tabs defining slots in the material, partially extend around the perimeter of at least one patch-tab section of the antenna. The perimeter of the at least one patch-tab section forms one edge of each slot, and the wire-tab of a wire-slot section forms a second edge of the slot. The wire-tabs of the wire-slot sections are separated from the patch-tab section by the slots and merge into the patch-tab section at a desired point. The length of each of the wire-slot sections may vary. A portion of each of a pair of the wire-tabs of the wire-slot sections functions as an input feed. The patch-tab section may be implemented as a single tab or as a plurality of tabs separated from one another by a slot. By varying the relative geometries of the patch-tab, wire-slots and tabs of the wire-slots, the electrical properties of the antenna, including the input impedance, can be adjusted.
REFERENCES:
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patent: 5216430 (1993-06-01), Rahm et al.
patent: 5680144 (1997-10-01), Sanad
patent: 5835063 (1998-10-01), Brachat er al.
Eggleston Steve W
Sung Ken
Chen Shih-Chao
Le Hoang-anh
Nokia Mobile Phones Limited
Rivers Brian T.
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