Title :
Log-periodic flat short-circuited dipole array with a squinted beam
Author :
Dubost, G. ; Gueho, S. ; Bizouard, A.
Author_Institution :
University of Rennes I, Laboratory of Antennas & Radiation, Rennes, France
Abstract :
A new class of microstrip travelling wave antenna of large bandwidth is described. The log-periodic array is composed of flat short-circuited half dipoles acting at quarter-wave resonance and fed in series by means of a high characteristic impedance microstrip line. A model has been constructed and tested. A large squinted main beam is obtained between 0.75 and 4.5 GHz. The constant experimental radioelectric properties are in good agreement with the theoretical predictions.
Keywords :
dipole antennas; microwave antenna arrays; strip line components; waveguide antennas; 0.75 GHz to 4.5 GHz; bandwidth; flat short-circuited dipole array; log-periodic array; microstrip travelling wave antenna; quarter-wave resonance; radioelectric properties; squinted beam;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840285
