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COMPACT DUAL-BAND INVERTED-F FILTERING ANTENNA USING DUAL-MODE RESONATORS

By T. Yang, D. Yang, K. Sun, and J. Hu

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Abstract:
A compact dual-band inverted-F filtering antenna with good band-edge selectivity for modern wireless communication systems is presented in this paper. A novel dual-band filter based on open-loop dual-mode resonator loading a T-shaped stub and an inverted-F antenna (IFA) also with a T-shaped open stub are integrated together. The higher band is controllable easily by adjusting the dimension of the T-shaped stub, leaving the lower band unaffected. To minimize the dimension of the filtering antenna, the last stage of the filter is folded. A flat gain response is obtained with steep skirts at both band edges. Simulated and measured results show that the integration makes the proposed antenna operate at 2.4/3.7 GHz with compact size, good band-edge selectivity, and controllable higher band compared with the traditional IFA.

Citation:
T. Yang, D. Yang, K. Sun, and J. Hu, "Compact Dual-Band Inverted-F Filtering Antenna Using Dual-Mode Resonators," Progress In Electromagnetics Research M, Vol. 62, 143-151, 2017.
doi:10.2528/PIERM17092002

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