Title :
Dual-Band and Dual-Polarized SIW-Fed Microstrip Patch Antenna
Author :
Sabri, L. ; Amiri, N. ; Forooraghi, K.
Author_Institution :
Dept. of Electron. & Comput. Eng., Tarbiat Modares Univ., Tehran, Iran
Abstract :
A new dual-band and dual-polarized antenna is investigated in this letter. Two longitudinal and transverse slots on the broad wall of the substrate integrated waveguide (SIW) are responsible for creating two different frequency bands with distinct polarization. A frequency selective surface (FSS) is placed on top of the microstrip patches to reduce the cross-polarization level of the antenna. The resonance frequencies of the patch and slot are set near to each other to get a wider impedance bandwidth. Bandwidth of more than 7% is achieved in each band. SIW feeding network increases the efficiency of the antenna. The simulated radiation efficiency of the antenna is better than 87% over the impedance bandwidth .
Keywords :
antenna feeds; antenna radiation patterns; electric impedance; electromagnetic wave polarisation; frequency selective surfaces; microstrip antennas; multifrequency antennas; substrate integrated waveguides; FSS; SIW feeding network; cross-polarization level reduce; dual-band microstrip patch antenna; dual-polarized SIW-fed microstrip patch antenna; frequency bands; frequency selective surface; impedance bandwidth; longitudinal slot; resonance frequency; simulated radiation efficiency; substrate integrated waveguide; transverse slot; Bandwidth; Frequency selective surfaces; Microstrip; Microstrip antennas; Slot antennas; Aperture-coupled antenna; frequency selective surfaces; patch antennas; substrate integrated waveguide;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2339363
