Title :
Size reduction of printed quadrifilar helical antenna using simulated annealing
Author :
Louvigné, J.C. ; Sharaiha, A. ; Blot, J.P.
Author_Institution :
Rennes I Univ., France
Abstract :
We have presented a method to reduce the size of a printed quadrifilar helical antenna (PQHA) by the modification of the antenna pitch angle on each segment of the wires. A global optimisation method (simulated annealing) has been used in order to obtain the optimum pitch angles according to the desired radiation pattern. A size reduction of 14% has been obtained in comparison to the conventional PQHA while maintaining the same features (half power beamwidth, axial ratio, impedance)
Keywords :
UHF antennas; antenna radiation patterns; helical antennas; simulated annealing; 1.9 GHz; 2.2 GHz; PQHA; antenna pitch angle; axial ratio; global optimisation method; half power beamwidth; impedance; optimum pitch angles; printed quadrifilar helical antenna; radiation pattern; simulated annealing; size reduction;
Conference_Titel :
Antennas and Propagation, 2001. Eleventh International Conference on (IEE Conf. Publ. No. 480)
Conference_Location :
Manchester
Print_ISBN :
0-85296-733-0
DOI :
10.1049/cp:20010351
