Title :
The analysis of a ridged conical horn with FEM
Author :
Zhijun, ZHANG ; Bo, Liu ; Hongjie, Chen
Author_Institution :
Eng. Sch., Air Force Univ. of Eng., Xi´´an, China
Abstract :
This paper discusses properties of a wideband conical horn antenna, of which the tapered portion has four ridges mounted symmetrically. Taking advantage of the FEM method, the authors succeed in calculating various cut-off wavelengths and electromagnetic fields at different cross sections of the ridged tapered circular waveguide. Based on the results, the VSWR of the tapered portion is evaluated correctly and the results show that the antenna can work well within the 2-18 GHz band (with VSWR lower than 2.0).
Keywords :
broadband antennas; circular waveguides; conical antennas; finite element analysis; horn antennas; ridge waveguides; 2 to 18 GHz; EMF; FEM; VSWR; cut-off wavelengths; electromagnetic fields; ridged conical horn antenna; ridged tapered circular waveguide; wideband antenna; Broadband antennas; Electromagnetic fields; Electromagnetic waveguides; Finite element methods; Horn antennas; Impedance; Interpolation; Laplace equations; Propagation constant; Wideband;
Conference_Titel :
Electromagnetic Compatibility, 2002 3rd International Symposium on
Print_ISBN :
0-7803-7277-8
DOI :
10.1109/ELMAGC.2002.1177387
