%0 Journal Article
%T Multiband Monopole Antenna with Sector-Nested Fractal
%A Jie Zhang
%A Wei Zhang
%J Wireless Engineering and Technology
%P 41-49
%@ 2152-2308
%D 2015
%I Scientific Research Publishing
%R 10.4236/wet.2015.63005
%X A kind of novel
multi-frequency monopole antenna with sector-nested fractal is proposed and designed,
which is nested with a series of similar circular sector elements. </span><span style=\"font-family:Verdana;font-size:12px;\">By means of the trapeziform ground plane with the tapered CPW
(coplanar waveguide) feeder in the middle, the antenna¡¯s radiation performance
is greatly improved. The antennas can synchronously operate in three frequencies,
covering the working frequency bands of WLAN/WiMAX, 2.44 GHz/3.5 GHz/5.2 GHz - 5.8
GHz. The pattern and impedance measurements of antenna show a good performance over
the WLAN/WiMAX band; it possesses a near omni-directional characteristic and
good radiation efficiency. Moreover, the antenna is miniature and its design
idea can be easily applied into other types of nested structure, the features
of which make the proposed antenna have a promising application in other
fields.
%K Sector-Nested
%K Fractal Antenna
%K Trapeziform Ground Plane
%K Multi-Frequency
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=57792