高选择性陷波超宽带天线设计

doi:10.3969/j.issn.1001-2400.2016.01.008

Abstract

Abstract:

The resonant properties of the interdigital capacitance loading loop resonator (IDCLLR) and its dual counterpart complimentary interdigital capacitance loading loop resonator (CIDCLLR) are studied. Due to the high capacitance/inductance of the IDCLLR/CIDCLLR, the resonators can generate lower resonant frequencies and narrower resonant bandwidths than many other structures. A compact ultra-wideband (UWB) antenna with quadruple sharp band-notching characteristics is presented by utilizing IDCLLRs and CIDCLLRs. Measured results show that the proposed antenna has a wide bandwidth from 3 to 11GHz(VSWR<2), with four sharp notched bands centered on 3.5, 5.2, 5.8 and 7.5GHz, respectively, avoiding the elimination of many useful frequencies. Moreover, the presence of IDCLLRs and CIDCLLRs scarcely affects the performance of the UWB antenna at its operating frequencies.

Key words: compact antenna, ultra-wideband (UWB), sharp band-notched, interdigital capacitance loading loop resonator(IDCLLR)

LI Tong;CAO Xiangyu;GAO Jun;ZHAI Huiqing;LIANG Changhong. Design of highly selective band-notched ultra-wideband antenna[J].J4, 2016, 43(1): 41-46.

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Design of highly selective band-notched ultra-wideband antenna

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