Abstract
A compact dual-band Chebyshev filtering antenna with controllable bandwidth is developed for coming 5G-band applications. Two stepped-impedance resonators (SIRs), and one Z-shaped monopole antenna are used and integrated to be a filtering antenna. The Z-shaped antenna is excited by a coupled line, which can be treated as an admittance inverter in a filter. The design procedure is discussed in detail using design curves. Dual-band filtering antenna with central frequencies of 3.45 and 4.9 GHz is designed and simulated. Experimental results show that the filtering antenna has a bandwidth of 100/170 MHz and gain of 2.5 dBill.98 dBi in 3.45/4.9 GHz band.
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