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This paper presents a printed quasi-self-complementary antenna fed by a 50-Ω microstrip line. A quarter-circular disc and a complementary quarter-circular slot in the mirror side on the ground plane are proved in ultra-wideband applications [1]. By inserting an inverted L-shaped slit embedded on the quarter-circular disc, a destructive interference can take place and cause the antenna to be nonresponsive...
A simple wave-traps multi-input multi-output (MIMO) antenna design is presented for wireless local area network (WLAN) operation. The measured −10 dB bandwidths for return loss are covering the WLAN2.4 and Wlan5.2/5.8 bands. The antenna structure is uncomplicated; it's composition by two symmetrically antennas and places on the clear-area which is at upper substrate. The proposed MIMO antenna system...
This paper presents a design of dual band coupled-fed MIMO antennas for WLAN application. The proposed MIMO antenna system consists of two planar symmetrical element and coupled-fed. The structure is uncomplicated and the antenna system area occupies only 12 × 60 mm2, and the resonance bandwidth can cover ISM2.4 and ISM5.2/5.8 bands. The proposed MIMO antennas have the isolation characteristic value...
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