Symmetrically Fed 1–10 GHz Log-Periodic Dipole Antenna Array Feed for Reflector Antennas

Oleksandr Sushko,Stepan Piltyay,Fedir Dubrovka

doi:10.1109/ukrmw49653.2020.9252778

Symmetrically Fed 1–10 GHz Log-Periodic Dipole Antenna Array Feed for Reflector Antennas

Oleksandr Sushko, Stepan Piltyay + Show 1 more

https://doi.org/10.1109/ukrmw49653.2020.9252778

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Publication Date: Sep 21, 2020

Citations: 24

Affiliation: National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”

#Log-periodic Dipole Antenna Array #Log-periodic Dipole Antenna + Show 8 more

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Abstract

This paper describes electromagnetic modeling and experimental investigation of the symmetrically fed log-periodic dipole antenna (LPDA) array. The array consists of two conventional LPDAs combined in H-plane to achieve symmetric radiation pattern suited for illuminating parabolic reflector antenna. The LPDA array feed is designed for 1-10 GHz bandwidth. The VSWR of the LPDA array feed remain below 2.0 for both stand along and when used as a feed for reflector antenna. Radiation patterns and gain of the 1.65 meters diameter reflector antenna fed by suggested LPDA array are experimentally measured and agree with simulations.

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