Title :
A compact biconical antenna for ultrawideband applications
Author :
Nengwu Liu ; Zhiya Zhang ; Guang Fu ; Qiongqiong Liu ; Li Wang
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Antennasand Microwaves, Xidian Univ., Xi´an, China
Abstract :
A compact ultrawideband antenna with the asymmetric biconical and upside-down discone is proposed. The asymmetric biconical antenna has wire structure like octopus legs for covering at lower operating frequency, and the upside-down discone antenna has conical shape playing a role as covering at higher operating frequency. By introducing several different geometric features, the impedance bandwidth of the antenna is improved while maintaining good electrical performance. Finally, the antenna can achieve an impedance bandwidth of 200:1 for VSWR≤2.5 ranging from 40 MHz to 8 GHz. These features make such antennas highly suitable for application to ultrawideband system.
Keywords :
conical antennas; ultra wideband antennas; antenna impedance bandwidth; asymmetric biconical discone; compact biconical antenna; compact ultrawideband antenna; conical shape; frequency 40 MHz to 8 GHz; upside-down discone antenna; Antenna radiation patterns; Bandwidth; Impedance; Microwave antennas; Ultra wideband antennas; Ultrawideband; asymmetric; biconical antenna; omnidirectional;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE), 2013 IEEE 5th International Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-6077-7
DOI :
10.1109/MAPE.2013.6689814
