Title :
A combined FDTD-GAM method for the modeling of of rectangular corrugated horn fed by wide-band sources
Author :
Marrocco, G. ; Freni, A. ; Salghetti, L. ; Maci, S.
Author_Institution :
D.I.S.P, Univ. of Roma "Tor Vergata", Rome, Italy
Abstract :
This paper presents an efficient algorithm for the analysis and computer aided design of arbitrarily corrugated pyramidal horns fed by complex broadband sources. This algorithm is based on the combination of the FDTD method with the generalized admittance matrix (GAM) method. The FDTD technique is used to model the complex source region of the antenna on a large bandwidth, while the GAM method allows a very efficient analysis of the rest of the horn, including the radiating part. An example of a printed Yagi antenna feeding an E-plane sectoral horn is also presented.
Keywords :
antenna theory; electric admittance; finite difference time-domain analysis; horn antennas; matrix algebra; E-plane sectoral horn; FDTD method; GAM method; arbitrarily corrugated pyramidal horns; complex broadband sources; computer aided design; generalized admittance matrix; printed Yagi antenna feed; rectangular corrugated horn; Admittance; Algorithm design and analysis; Bandwidth; Boundary conditions; Finite difference methods; Horn antennas; Reflector antennas; Time domain analysis; Transmission line matrix methods; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.959442
