Title :
The study of spiral antenna for radar imaging
Author :
Chang, Dau-Chyrh ; Lee, Hisn-Chung ; Lee, Shih-Hung
Author_Institution :
Dept. of Electr. Eng., Da Yeh Univ., Chang-Hwa, Taiwan
Abstract :
For the radar imaging, there are two factors that should be emphasized. They are the resolutions in both cross range and down range. The resolution in cross range will be explain in detail in another paper of ICMMT2004. The resolution of down range is determined by the RF bandwidth. The wider the RF bandwidth, the better the cross range resolution is. In this paper, a wide band spiral antenna is designed in detail. The measurement results show that the antenna with frequency 2-12 GHz. The axial ratio is within 2.2 dB within the band. The test results agree well with that of simulation.
Keywords :
broadband antennas; microwave antennas; radar cross-sections; radar imaging; radar resolution; spiral antennas; 2 to 12 GHz; RF bandwidth; radar cross section; radar imaging; range resolution; wide band spiral antenna; Antenna measurements; Bandwidth; Broadband antennas; Image resolution; Impedance matching; Radar antennas; Radar cross section; Radar imaging; Shape; Spirals;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2004. ICMMT 4th International Conference on, Proceedings
Print_ISBN :
0-7803-8401-6
DOI :
10.1109/ICMMT.2004.1411438
