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This paper presents a quasi yagi microstrip antenna which is backed by meander line bridge Frequency selective surface (MBFSS) for a handheld UHF RFID reader. Long read range handheld reader antennas have been usually packaged outside of the reader units in most cases due to the mutual coupling and environment effect. In the proposed antenna, we reduce such effects by placing MBFSS under the quasi...
A miniaturized antenna with circular polarization and directional pattern is presented in this paper. The conventional ground plane is replaced by a rectangular ring reflector to form the directional pattern. Since the side length of the ring reflector is around quarter-wavelength, the total size of the proposed antenna is reduced dramatically, which is about λg/2 × λg/2 in the horizontal plane. In...
In this work, a novel planar high-gain antipodal linearly tapered slot antenna (ALTSA) using microstrip-to-substrate integrated waveguide (SIW) transition has been developed and demonstrated. The antenna is well designed to be feed element of an 8mm focal plane array (FPA) imaging system. A wideband SIW feeding structure is used for its implementation at mm-wave frequencies. The return loss of the...
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