An UWB horrizontally polarized omnidiectional antenna array with a series power divider

In this letter an ultra-wideband (UWB) horizontally polarized (HP) omnidirectional antenna array has been investigated. The proposed array consists of two elements, which are fed by an UWB 2-way series power divider with identical magnitude and reverse phase based on a coaxial cable. The designed an...

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Bibliographic Details
Published in2019 IEEE Asia-Pacific Microwave Conference (APMC) pp. 545 - 547
Main Authors Nguyen, Quoc Duv, Nguyen, Tat Thang, Nguyen, The Anh, Tran, Hoang Viet, Pham, Dinh Toai, Ngo, Thi Huong, Bui, Hoang Ha
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2019
Subjects
Antenna arrays
Antenna radiation patterns
Dipole antennas
Finite element analysis
Gain
horizontal polarization
Impedance
Omnidirectional antenna
Power dividers
series power divider
UWB antenna
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Summary:In this letter an ultra-wideband (UWB) horizontally polarized (HP) omnidirectional antenna array has been investigated. The proposed array consists of two elements, which are fed by an UWB 2-way series power divider with identical magnitude and reverse phase based on a coaxial cable. The designed antenna array operates at a frequency band about 81.25% (from 1.9 to 4.5 GHz with S11≤ -10 dB), and obtains very good gain variation in the horizontal plane, which is less than 0.5 dB over the relative frequency band about 67.83% (from 1.9 to 3.85 GHz), and increases to over 1 dB from 4.2 GHz. Meanwhile the gain is 0.2 - 2.75 dB in the impedance bandwidth. Within the operating frequency band, the cross polarization is less than -25 dB in the horizontal plane.
DOI:10.1109/APMC46564.2019.9038689