Journal
FREQUENZ
Volume 69, Issue 11-12, Pages 479-483Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/freq-2015-0002
Keywords
dual band-notched characteristics; equivalent circuit; UWB antenna; electromagnetic interference; HiperLAN/2; WIMAX
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Funding
- National Natural Science Foundation of China [61372037]
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In this article, started from analyzing the basic principle of band-notched characteristics, a feasibly method used for band-notched antenna is demonstrated and the equivalent circuit for this method is designed. A novel UWB antenna is designed. Based on this method, two stubs which can be equivalent to shorted stubs in parallel configuration are added to realize dual band-notched characteristics. Simulated and measured results all show that the UWB antenna yields an impendence bandwidth of 2.0-10.6 GHz by defining VSWR <= 2, and two obvious band-notched functions (3.27-3.83 GHz, 4.60-5.90 GHz) occur at the working bandwidth of WIMAX (3.3-3.7 GHz) and HiperLAN/2 (5.15-5.35 GHz, 5.47-5.725 GHz), so the electromagnetic interference between UWB application and WIMAX, HiperLAN/2 can be suppressed.
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