This paper presents the design of a micro-strip antenna which adopts coplanar
waveguide to feed electrical wave, the antenna and metal radiator floor which are fixed on
the same antenna plane to reduce the antenna's size. The designed antenna satisfies the
needs of conformal and integrated disposal of the antenna. Antenna structure adopts square
heart-shaped metal radiator, which belongs to the gradient line patch micro-strip antenna.
Through the gradient width adjusting of metal radiator of heart structure, the antenna
reconfigureable radiation characteristics of surface current can be realized, thus the
resonance of antenna with electromagnetic wave of different frequency can also be
achieved, thus the bandwidth of designed antenna is improved and it meets with the
bandwidth demands of RFID (Radio Frequency Identification) and UWB(Ultra wide-band)
Keywords: Design, micro-strip antenna, RFID, plane antenna, UWB.
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