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

fYear

2013

fDate

29-31 Oct. 2013

Firstpage

327

Lastpage

332

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/MAPE.2013.6689814

Filename

6689814