Title :
A compact ultrawideband monopole antenna with tapered CPW Feed and slot stubs
Author :
Moeikham, Pichet ; Akkaraekthalin, Prayoot
Author_Institution :
Dept. of Electr. Eng., King Mongkut´´s Univ. of Technol. North Bangkok, Bangkok, Thailand
Abstract :
This paper presents a compact ultrawideband monopole antenna with tapered CPW feed and slot stubs. The proposed antenna is not only very small but also easy to fabricate. Both element feed and ground planes have been designed to be gradual curvatures for achievement of ultrawide impedance bandwidth. The impedance matching has been also improved by inserting two slot stubs at the central feed line. The results show the impedance bandwidth from 2.85 to over 15 GHz and the pattern bandwidth from 3.1 to 9 GHz. The linear phase and small variation of group delay time lower than ±6 nanoseconds have been also obtained. Therefore, this antenna is a good candidate for many UWB applications.
Keywords :
coplanar waveguides; impedance matching; monopole antennas; ultra wideband antennas; CPW feed; UWB; bandwidth 2.85 GHz to 15 GHz; bandwidth 3.1 GHz to 9 GHz; compact antenna; impedance matching; monopole antenna; slot stubs; ultrawide impedance bandwidth; ultrawideband antenna; Antenna feeds; Antenna measurements; Distortion measurement; Frequency measurement; Gain; Radio access networks; UWB antenna; slot stubs; tapered CPW feed;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2011 8th International Conference on
Conference_Location :
Khon Kaen
Print_ISBN :
978-1-4577-0425-3
DOI :
10.1109/ECTICON.2011.5947802
