Title :
Computer-aided design of four wire dual-mode spiral antenna
Author :
Xiaorong, Yan ; Xiaoguo, Liu ; Guangyou, Fang
Author_Institution :
China Res. Inst. of Radio Wave Propagation, Shandong, China
Abstract :
A dual-mode broadband antenna specially designed to simultaneously provide low and high angle radiation patterns within a bandwidth of 5 to 30 MHz relative to a horizontal ground plane is described. This particular antenna utilizes four wire radiators in the form of an inverted conical log-spiral supported in a vertically extending fashion a predetermined distance above the horizontal ground plane. The spiral antenna is theoretically analyzed and its current integral equation is given. For purposes of computer aided design of the spiral antenna, numerical calculation is applied using Galerkin´s method. Finally, the numerical results are given and discussed.
Keywords :
CAD; Galerkin method; HF antennas; antenna radiation patterns; integral equations; spiral antennas; wire antennas; 5 to 30 MHz; Galerkin´s method; HF antenna; broadband antenna; computer-aided design; four wire dual-mode spiral antenna; horizontal ground plane; integral equation; inverted conical log-spiral; numerical results; radiation patterns; Antenna accessories; Antenna radiation patterns; Antenna theory; Bandwidth; Broadband antennas; Design automation; Integral equations; Moment methods; Spirals; Wire;
Conference_Titel :
Antennas, Propagation and EM Theory, 2000. Proceedings. ISAPE 2000. 5th International Symposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6377-9
DOI :
10.1109/ISAPE.2000.894715
