Affiliations: [a] School of Electronics and Information Engineering,
Sichuan University, Chengdu, Sichuan, China
Correspondence:
[*]
Corresponding author: Xing Chen, School of Electronics and
Information Engineering, Sichuan University, Chengdu 610064, Sichuan, China.
Tel.: +86 134 5856 4058; E-mail: [email protected]
Abstract: A novel microstrip-fed dielectric rod array antenna with high
end-fire gain is proposed. It has simple structure, comprising a group of
cylindrical dielectric rods and a microstrip corporate feeding network, and is
low in cost. A prototype 4 × 4 array working at 8.0
GHz is designed, fabricated and measured. Simulation and measurement results
show the antenna has encouraging performances, e.g. an impedance bandwidth
(|S_{11}|←10 dB) of 7.7%, an
end-fire gain up to 20.3 dBi, side-lobes 13.5 dB below the main lobe, and
linear polarization with the cross-polarization level less than
− 21 dB.
Keywords: Array antenna, dielectric rod, high gain, microstrip corporate feeding network
