Title :
A planer sinuous antenna and the relevant balun
Author :
Xiaolu Zhang ; Guang Fu ; Zhiya Zhang
Author_Institution :
Nat. Key Lab. of Antenna & Microwave Technol., Xidian Univ., Xi´an, China
Abstract :
In this paper, a planar four-arm sinuous antenna for 2-18GHz and its balun have been studied and designed. The balun, matched the balance structure and the wideband character of the antenna, is microstrip exponential gradual tapered type. The simulation result shows that the VSWR over the frequency band is less than 2. The antenna has good circular polarization performance and for the entire frequency band, the axial ratio can be kept below 3 dB.
Keywords :
UHF antennas; baluns; broadband antennas; electromagnetic wave polarisation; microwave antennas; planar antennas; VSWR; axial ratio; balun; frequency 2 GHz to 18 GHz; planar four-arm sinuous antenna; polarization performance; wideband antenna feeds; Antenna feeds; Antenna theory; Apertures; Broadband antennas; Broadband communication; Wideband; Dual-circular polarized; frequency independent; microstrip tapered balun; sinuous antenna; wideband;
Conference_Titel :
Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2013 International Workshop on
Conference_Location :
Chengdu
DOI :
10.1109/MMWCST.2013.6814580
