An Ultra Wideband Vivaldi Antenna Array Based on Tightly Coupled Effect

Jialing Xie,Yiping Shi,Chaolong Yi,Hanqing Qiao,Xu Fang

PROCEEDINGS OF THE 2019 IEEE ASIA-PACIFIC MICROWAVE CONFERENCE (APMC)（2019）

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摘要

An ultra wideband Vivaldi antenna array based on tightly coupled effect is proposed. The elements are arranged overlap to get an additional capacitive capacity to achieve impedance matching at low frequency. A sample of a 4× 4 Vivaldi array was simulated, fabricated, and tested. The measured farfield waveform is basically agreed with simulated one. The designed antenna gets a bandwidth of O.4GHz-4.2GHz.

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关键词

antenna testing,impedance matching,ultrawideband Vivaldi antenna array,tightly coupled effect,frequency 0.4 GHz to 4.2 GHz

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