Title :
Research on a novel wide-band sleeve antenna
Author :
Yong-xia Zhang ; Zhi-ya Zhang ; Guang Fu ; Long Yang
Author_Institution :
Sci. & Technol. on Antenna & Microwave Lab., Xidian Univ., Xi´an, China
Abstract :
The paper presents a novel sleeve monopole antenna and analyzes its VSWR and radiant characteristics. The structure of the antenna above the sleeve is changed so that the height of the antenna is lowered to meet practical needs and the impedance bandwidth is expanded. The proposed omnidirectional antenna, ranging from 120MHz to 520MHz, has a wider bandwidth and the more symmetric antenna pattern compared with the traditional sleeve antenna. The sleeve monopole antenna achieves the bandwidth of 125% for VSWR<; 3 with good radiation patterns.
Keywords :
UHF antennas; antenna radiation patterns; monopole antennas; omnidirectional antennas; VSWR; antenna radiation patterns; frequency 120 MHz to 520 MHz; impedance bandwidth; novel sleeve monopole antenna; novel wide band sleeve antenna; omnidirectional antenna; radiant characteristics; symmetric antenna pattern; Antenna radiation patterns; Bandwidth; Dipole antennas; Distance measurement; Impedance; Microwave antennas;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6929082
