Open AccessCompact planar quasi‐Yagi antenna with band‐notched characteristic for WLAN and DSRC for ultra‐wideband applications
Author(s) -
Yang Tianming,
Yang Deqiang,
Geng Dongdong
Publication year - 2018
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2017.0982
Subject(s) - dedicated short range communications , ultra wideband , wideband , antenna (radio) , planar , electronic engineering , computer science , telecommunications , wireless , engineering , computer graphics (images)
A compact planar quasi‐Yagi antenna with a wideband microstrip‐to‐slotline transition and a modified bow‐tie driver is designed with an enhanced bandwidth for precise indoor positioning applications. A compact interdigital capacitor loaded loop resonator with a high quality factor is placed inside the ring resonator at the end of the antenna's slot to realise band‐notched characteristics over a frequency range of 5.1–6.3 GHz, thus avoiding interference from wireless local area networks (WLANs) and dedicated short‐range communications (DSRCs). Measured results show that the proposed antenna obtains a relative impedance bandwidth, determined by the voltage standing wave ratio <2, higher than 122.6% (3.0–12.5 GHz) and a gain of 4.9–7.8 dBi outside of the stop band.