This paper shows that finite-difference time-domain (FDTD) analysis incorporating a graded grid may be used to accurately model a three-element triangular array of printed dipoles. Each element forms a complicated structure that combines the microstrip feedline, balun and dipole. Examples of an input response and an element coupling are presented for the range 2-14 GHz, together with far-field radiation patterns for one of the elements at a frequency of 9.3 GHz. All the results obtained by the FDTD model run on a low-powered HP 9000 series workstation are compared with measurements of the actual antenna array
Sponsorship: This work has been carried out with the support of the Defence Research Agency
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Name of Conference: IEEE Antennas and Propagation Society International Symposium
Venue of Conference: Montreal, Quebec
- finite difference time-domain analysis (FDTD), dipole antenna arrays, antenna radiation patterns