Title :
A New Broadband Quasi Yagi–Uda Antenna With an EBG-Truncated Ground Plane
Author :
Estrada, Juan G. ; Paez, Carlos I. ; Fajardo, Arturo
Author_Institution :
Pontificia Univ. Javeriana, Bogotá, Colombia
Abstract :
The design of a new broadband quasi Yagi-Uda antenna is presented. The antenna is composed of an electromagnetic band-gap (EBG)-truncated ground plane and a feeding network formed by a Marchand balun and a coupling network. The quasi Yagi-antenna was designed to work at a central frequency of 3.5 GHz using a 30-mil FR4 substrate. The simulated and measured results show a relative bandwidth better than 53%, a cross polarization lower than -19 dB in the main lobe, and a front-to-back ratio better than 12 dB in the entire bandwidth.
Keywords :
Yagi antenna arrays; antenna feeds; baluns; broadband antennas; microwave antenna arrays; photonic band gap; Marchand balun; broadband quasiYagi-Uda antenna; electromagnetic band gap-truncated ground plane; feeding network; frequency 3.5 GHz; microwave antenna arrays; Bandwidth; Broadband antennas; Broadband communication; Dipole antennas; Impedance matching; Broadband antennas; electromagnetic band-gap (EBG); planar antennas; quasi Yagi–Uda antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2286758
