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Several design options of UHF microstrip antennas useful in RFID tags are proposed. This study shows antenna characteristics of the tags and the simulations results of reading range of tags, which are accordance with European and North American standards of the reader radiation power.
Two new modifications of planar center-fed leaky-wave antenna arrays are presented. The antenna arrays consist of a printed one-dimensional periodic metal strip grating on a grounded dielectric waveguide and designed for broadside radiation. The first new model has a single-layer structure with an excitation device for the planar dielectric waveguide, represented by coaxial-fed comb line. The second...
Two kinds of planar center-fed leaky-wave antenna arrays for millimeter wave systems are presented. The antenna arrays consist of a printed one-dimensional periodic metal strip grating on a grounded dielectric waveguide and designed for broadside radiation. The first antenna array has a hybrid structure with a feeding device for the planar dielectric waveguide, represented by a center-fed linear slot...
A planar center-fed leaky-wave antenna array for broadside radiation in 24???24.25 GHz frequency range is presented. The antenna consists of a printed one-dimensional periodic metal strip grating on a grounded dielectric waveguide. The radiation efficiency of the antenna exceeds 50 %, while the antenna gain is above 30 dBi.
A leaky-wave antenna array is one of the attractive candidates for high efficiency and low cost planar antennas in centimeter- and millimeter-wave applications such as automotive radars and radio communication devices. In this paper, a planar leaky-wave antenna array composed of a printed periodic metal strip grating on a grounded dielectric waveguide and using a coplanar feeding device for the dielectric...
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