Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2007-10-09
2007-10-09
Nguyen, Hoang V. (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S702000
Reexamination Certificate
active
11394962
ABSTRACT:
A multiple frequency band planar antenna formed on one-side surface of a circuit board comprises: a first antenna pattern, a second antenna pattern, a third antenna pattern and a fourth antenna pattern, each antenna pattern further comprising an elongated portion and a conductor portion; wherein the second elongated portion at a point between its two ends is short-circuited to a feeding transmission line formed on another-side surface of the circuit board through a via. Thus, the multiple frequency band planar antenna can operate at three frequency bands with their central frequencies at 2.4 GHz, 3.5 GHz and 5.8 GHz, respectively, suitable for both WIFi LAN and WiMAX MAN applications.
REFERENCES:
patent: 6535167 (2003-03-01), Masuda et al.
patent: 6812892 (2004-11-01), Tai et al.
patent: 6985114 (2006-01-01), Egashira
patent: 7057560 (2006-06-01), Erkocevic
Chi Sheng-Yuan
Wang Shiwei
Yang Chia-Bin
Delta Networks, Inc.
J.C. Patents
Nguyen Hoang V.
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