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In this paper, a novel design of square patch antenna with a switchable polarization sense. The propose structure is reconfigurable patch antenna with polarization states being switched among linear polarization (LP), left-hand circular polarization (LHCP) and right-hand circular polarizations (RHCP). This antenna structure has four L-shaped slots on the ground plane, and the Circular Polarization...
In this paper, a novel design of an Octagonal shape micro strip patch antenna with switchable slots (PASS)structure is proposed to achieve polarization diversity. Two orthogonal slots are incorporated into the patch and two p-i-ndiodes are utilized to switch the slots on and off. By turning the diodes on or off, this antenna can radiate with linear and circular polarization, either right hand circular...
In this paper, a novel compact ultra wideband (UWB) frequency-band reconfigurable antenna with seven switchable states including an ultra wideband (UWB) state, three narrowband states, one dual-band state and one triple band state is presented. In ultra wide band (UWB) state, antenna yields an impedance bandwidth of 2.54 to 11.71 GHz with return loss S11
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