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This paper presents the design of the circularly polarized slot antenna on the flexible substrate for ultra wide band (UWB) high band application. We applied two slots which are crossed perpendicularly to obtain circularly polarized wave. By optimizing the lengths and widths of the antenna slots and substrate, wide band impedance matching can be realized. Impedance bandwidth of proposed antenna is...
This paper presents the design of thin planar one-sided directional slot antenna on patterned circuit board. Our proposed planar antenna has the matching circuit composed of coplanar waveguide (CPW) transmission line, interdigital gap, a top metal layer and a bottom floating metal layer. In order to realize the one-sided directional properties, the length of the top metal layer is adjusted, and at...
In this paper, the one-sided directional slot dipole antenna with for 5 GHz-band application have been designed and experimentally verified. The antenna size is 22 mm times 29 mm, which is smaller than a patch antenna at the same frequency. The measured radiation patterns are in the good agreement with the simulation which shows the effectiveness of the presented technique to realize on-sided directional...
In this paper, we designed and tested ESAs with impedance matching circuits having different gain. We succeeded in implementing the circuit which matches the small radiation resistance of ESA to amplifier. Measured results are close to the simulation value. So we proved possibility to design and fabricate ESA with high radiation efficiency.
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