Title :
A miniaturized planar UWB antenna with a trapezoid shape ground
Author :
Zhang, Yangjun ; Takeuchi, Yusuke ; Miyashita, Toyokatsu
Author_Institution :
Dept. of Electron. & Inf., Ryukoku Univ., Otsu, Japan
Abstract :
A miniaturized planar UWB (Ultra Wide Band) antenna implemented on a FR-4 substrate is proposed in this paper. The antenna uses a tapered microstrip line as a feed line, and has 1-stage trapezoid shape ground. Its total size is 25 × 30 mm2. The antenna proposed in this paper is much smaller than the antenna using a uniform feed line and a conventional square ground. It is also smaller than the UWB antenna we proposed last year. The simulated and measured results on impedance matching, radiation pattern and time domain characteristic over UWB band are given.
Keywords :
antenna feeds; antenna radiation patterns; impedance matching; microstrip lines; planar antennas; time-domain analysis; ultra wideband antennas; FR-4 substrate; impedance matching; miniaturized planar UWB antenna; radiation pattern; square ground; tapered microstrip line; time domain characteristics; trapezoid shape ground; ultra wide band antenna; uniform feed line; Antenna measurements; Antenna radiation patterns; Microstrip antennas; Resonant frequency; Ultra wideband antennas;
Conference_Titel :
Microwave Conference Proceedings (CJMW), 2011 China-Japan Joint
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4577-0625-7
Electronic_ISBN :
978-7-308-08555-7
