TY - GEN
T1 - An efficient method for highly oscillatory physical optics integrals
AU - Wu, Yu Mao
AU - Jiang, Li Jun
AU - Chew, Weng Cho
PY - 2012
Y1 - 2012
N2 - In this work, we use the steepest descent path (SDP) method in the complex analysis to calculate the highly oscillatory physical optics (PO) integral with quadratic phase and amplitude variations on the triangular patch. Compared with traditional approximate asymptotic expansion approach, our method has significantly improved the PO integral accuracy by one to two digits (10 1 to 102) for evaluating the PO integral. Moreover, the computation effort for the highly oscillatory integral is frequency independent.
AB - In this work, we use the steepest descent path (SDP) method in the complex analysis to calculate the highly oscillatory physical optics (PO) integral with quadratic phase and amplitude variations on the triangular patch. Compared with traditional approximate asymptotic expansion approach, our method has significantly improved the PO integral accuracy by one to two digits (10 1 to 102) for evaluating the PO integral. Moreover, the computation effort for the highly oscillatory integral is frequency independent.
UR - http://www.scopus.com/inward/record.url?scp=84870494514&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84870494514&partnerID=8YFLogxK
U2 - 10.1109/APS.2012.6349078
DO - 10.1109/APS.2012.6349078
M3 - Conference contribution
AN - SCOPUS:84870494514
SN - 9781467304627
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
BT - 2012 IEEE International Symposiumon Antennas and Propagation, APSURSI 2012 - Proceedings
T2 - Joint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012
Y2 - 8 July 2012 through 14 July 2012
ER -