Title :
A broadband curvilinear dipole based on non-foster matching network
Author :
Ming-Ming Bian ; Peng-Fei Zhang ; Hui-Li Zheng ; Yun-Xue Xu ; Tao Hong
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Antennas & Microwaves, XiDian Univ., Xi´an, China
Abstract :
A broadband curvilinear dipole is presented, and impedancematching network including Non-Foster elements is employed to broaden its bandwidth. The antenna is precisely designed in a curved shape with the dimension of 1100 mm × 85 mm. The bandwidth for VSWR less than 2 ranges from 290MHz to 765MHz. Then, a conventional LC matching network is designed for the antenna, which brings a bandwidth of 5 octaves covering from 258MHz to 1370MHz. And then, the Non-Foster elements are introduced into the matching network, which makes it possible to include both positive LC and negative LC in the network. The simulate results show that the bandwidth of the antenna with Non-Foster Matching Network covers 14 octaves ranging from 116MHz to 1600MHz. The gain of the antenna is higher than 3dB, and the antenna exhibits a good omni direction radiation characteristics.
Keywords :
antenna radiation patterns; broadband antennas; dipole antennas; impedance matching; omnidirectional antennas; LC matching network; VSWR; bandwidth 258 MHz to 1370 MHz; bandwidth 290 MHz to 765 MHz; broadband curvilinear dipole; frequency 116 MHz to 1600 MHz; gain 3 dB; impedance matching network; negative LC; nonFoster elements; nonFoster matching network; omnidirection radiation characteristics; positive LC; Abstracts; Broadband antennas; Broadband communication; Indexes; Broadband antenna; Matching network; Non-Foster elements;
Conference_Titel :
Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2013 International Workshop on
Conference_Location :
Chengdu
DOI :
10.1109/MMWCST.2013.6814589
