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- W4386981413 abstract "Summary An ultra‐wideband dual circularly polarized (CP) slot antenna with high isolation is presented. Two L‐shaped probes are on the upper layer, both a ladder strip outside and a bent strip in the center on the bottom layer. The L‐shaped probes and the ladder strip result in four impedance resonance modes, and the bent strip moderates real and imaginary impedances to achieve an ultrawide impedance bandwidth. Furthermore, two L‐shaped strips on the ladder strip make two linear polarized Modes 1 and 2 into two CP modes at the low‐ and mid‐frequency bands. Meanwhile, the bent strip combined with the L‐shaped probes creates the third CP resonance mode at the high‐frequency band. The cutting corner and bent slots on the ladder strip change the amplitude and the phase of the electric fields Ex and Ey to realize ultra‐wideband CP radiation. In addition, the port–port isolation is enhanced because the currents are concentrated on the bent strip, and the coupling current path is cut off with the bent slot. The fabricated antenna achieves a −10‐dB impedance bandwidth of 111% (1.7–5.94 GHz), a 3‐dB axial ratio bandwidth of 101% (1.7–5.2 GHz), and a port–port isolation of better than 20 dB. Besides, our antenna obtains a high peak gain of 8.1 dBi and a lower profile of 0.004 λ L , where λ L is the lowest frequency wavelength of the operating bands in vacuum. These performances make the proposed design competitive for wireless communications." @default.
- W4386981413 created "2023-09-24" @default.
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- W4386981413 date "2023-09-22" @default.
- W4386981413 modified "2023-10-18" @default.
- W4386981413 title "An ultra‐wideband dual circularly polarized slot antenna with high isolation" @default.
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- W4386981413 doi "https://doi.org/10.1002/dac.5636" @default.
- W4386981413 hasPublicationYear "2023" @default.
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