Title :
Bandwidth enhancement of substrate integrated waveguide (SIW) slot antenna with parasitic dipole
Author :
Chen, Min ; Che, Wenquan ; He, Shanhong
Author_Institution :
Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
With many advantages of rectangular waveguide and microstrip lines, substrate integrated waveguide (SIW) can be used for design of planar waveguide-like slot antenna. However, the bandwidth of this kind of antenna structure is limited. In this work, a parasitic dipole is introduced and coupled with the SIW radiate slot. The results have indicated that the proposed technique can enhance the bandwidth of the SIW slot antenna significantly. The measured bandwidth of fabricated antenna prototype is about 19%, indicating about 115% bandwidth enhancement than the ridged substrate integrated waveguide (RSIW) slot antenna.
Keywords :
microstrip lines; planar waveguides; rectangular waveguides; slot antennas; substrate integrated waveguides; SIW radiate slot; antenna structure; bandwidth enhancement; microstrip lines; parasitic dipole; planar waveguide-like slot antenna; rectangular waveguide; substrate integrated waveguide; Antenna radiation patterns; Arrays; Bandwidth; Dipole antennas; Impedance; Slot antennas; Substrates; bandwidth enhancement; parasitic dipole; slot antenna; substrate integrated waveguide (SIW);
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
