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Dual-band patch antenna with filtering performance and harmonic suppression

Dual-band patch antenna with filtering performance and harmonic suppression

Mao, Chun Xu, Gao, Steven, Wang, Yi, Sanz-Izquierdo, Benito, Wang, Zhengpeng, Qin, Fan, Chu, Qing Xin, Li, Jianzhou, Wei, Gao and Xu, Jiadong (2016) Dual-band patch antenna with filtering performance and harmonic suppression. IEEE Transactions on Antennas and Propagation, 64 (9). pp. 4074-4077. ISSN 0018-926X (doi:

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A novel design of dual-band antenna with integrated filtering performance is proposed. A low-profile aperture-coupled U-slot patch antenna is employed for dual-band operation with a uniform polarization, which is fed by a dual-mode stub-loaded resonator (SLR). The U-slot patch works as a dual-mode resonator of the dual-band filter as well as the radiation element. The odd- and even-mode of the SLR are coupled and tuned with the U-slot patch, generating two 2nd-order operation bands at 3.6 and 5.2 GHz. Compared with the traditional patch antenna, the proposed antenna exhibits improved bandwidth and frequency selectivity. In addition, the bandwidths can be controlled by adjusting the coupling strength between the SLR and the patch. Furthermore, the higher-order harmonics can be suppressed over a broadband without increasing the footprint of the design. Measured and simulated results agree well with each other, showing an excellent performance in terms of impedance matching, bandwidths, 2nd-order filtering, out-of-band rejection, cross polarization discrimination (XPD) and gains at both bands.

Item Type: Article
Uncontrolled Keywords: Dual-band, bandwidth, 2nd-order, filtering, U-slot patch, harmonic suppression
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Faculty / School / Research Centre / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > School of Engineering (ENG)
Last Modified: 12 Sep 2017 10:40

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