Open AccessUltra‐compact end‐loaded planar dipole antenna for ultra‐wideband radar and communication applications
Author(s) -
Shadrokh Shahin,
Yu YiQiang,
Jolani Farid,
Chen Zhizhang
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2014.2008
Subject(s) - ultra wideband , dipole antenna , radar , planar , antenna (radio) , electronic engineering , electrical engineering , optoelectronics , materials science , telecommunications , computer science , engineering , computer graphics (images)
A planar dipole antenna is loaded with LC‐tank resonators and chip resistors presented for ultra‐wideband (UWB) radar and communication systems. Each staircase rectangular arm of the proposed planar dipole is loaded with an open complementary double concentric split‐hexagonal‐ring resonator (LC‐tank) and a pair of chip resistors at the end for bandwidth enhancement, whereas a broadband microstrip to parallel‐plate transformer (or balun) is applied as the feeding structure of the antenna to provide impedance matching as well as balanced–unbalanced transition. The measurement results show that the proposed antenna operates over a frequency bandwidth of 0.64–3.8 GHz with S 11 < −15 dB and exhibits highly directive radiation patterns for the first 100% of the operating bandwidth (0.64–2 GHz) with gains in the range 2.2–4.2 dBi.