Title :
A Broadband High-Gain Bi-Layer LPDA for UHF Conformal Load-Bearing Antenna Structures (CLASs) Applications
Author :
Bishop, Nicholas A. ; Miller, Jason ; Zeppettella, David ; Baron, William ; Tuss, James ; Ali, Mohammod
Author_Institution :
Dept. of Electr. Eng., Univ. of South Carolina, Columbia, SC, USA
fDate :
5/1/2015 12:00:00 AM
Abstract :
A broadband high-gain bi-layer log-periodic dipole array (LPDA) is introduced for conformal load bearing antenna structures (CLASs) applications. Under the proposed scheme, the two layers of the LPDA are printed on two separate thin dielectric substrates which are substantially separated from each other. A meander line geometry is adapted to achieve size reduction for the array. The fabricated and tested array easily exceeds more than an octave of gain, pattern, and VSWR bandwidth.
Keywords :
UHF antennas; broadband antennas; conformal antennas; dipole antenna arrays; geometry; log periodic antennas; microstrip antenna arrays; UHF CLAS applications; UHF conformal load-bearing antenna structure application; VSWR bandwidth; broadband high-gain bilayer LPDA; broadband high-gain bilayer log periodic dipole array; meander line geometry; size reduction; thin dielectric substrates; Arrays; Broadband antennas; Conductors; Electron tubes; Feeds; Gain; Array; Broadband antenna; CLAS; LPDA; UWB; array; broadband antenna; conformal load bearing antenna structure (CLAS); endfire; log-periodic; ultrawideband; ultrawideband (UWB);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2015.2409866
