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Utility-based bandwidth allocation algorithm for heterogeneous wireless networks SCIENCE CHINA Information Sciences 56, 022313 (2013); Adaptive joint bandwidth and power allocation in heterogeneous wireless access environment SCIENCE CHINA Information Sciences 57, 062308 (2014); Storage and repair bandwidth tradeoff for heterogeneous cluster distributed storage systems SCIENCE CHINA Information Sciences 63, 122301 (2020); A suboptimal joint bandwidth and power allocation for cooperative relay networks: a cooperative game theoretic approach SCIENCE CHINA Information Sciences 56, 072304 (2013); SCIENCE CHINA Information Sciences

A codesigned compact dual-band filtering antenna incorporating a PIN diode for 2.45/5.2 GHz wireless local area network (WLAN) applications is proposed in this paper. The integrated filtering antenna system consists of a simple monopole radiator, a microstrip dual-band band-pass filter, and a PIN diode. The performance of the filtering antenna is notably promoted by optimizing the impedance between the antenna and the band-pass filter, with good selectivity and out-of-band rejection. The design process follows the approach of the synthesis of band-pass filter. In addition, the PIN diode is incorporated in the filtering antenna for further size reduction, which also widens the coverage of the bandwidth by about 230% for 2.4 GHz WLAN. With the presence of small size and good filtering performances, the proposed filtering antenna is a good candidate for the wireless communication systems. Prototypes of the proposed filtering antenna incorporating a PIN diode are fabricated and measured. The measured results including return losses and radiation patterns are presented.

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