Title :
A Butterfly Substrate Integrated Waveguide Leaky-Wave Antenna
Author :
Mohtashami, Yahya ; Rashed-Mohassel, Jalil
Author_Institution :
Center of Excellence on Appl. Electromagn. Syst., Univ. of Tehran, Tehran, Iran
Abstract :
A new leaky-wave antenna taking advantage of substrate integrated waveguide technology has been introduced. This antenna has a butterfly-like configuration consisting of eight wings, i.e., eight parts. By this configuration, better gain and side-lobe level for lower elevation angles (12 °-45 °) are obtained while in the uniform design, these angles were scanned with poor radiation performances. Besides, an effective matching part for good impedance matching has been employed. The simulated data have been compared with measurement results and showed good consistency.
Keywords :
antenna radiation patterns; impedance matching; leaky wave antennas; substrate integrated waveguides; waveguide antennas; butterfly substrate integrated waveguide leaky-wave antenna; impedance matching; radiation performances; side-lobe level; Antenna measurements; Electromagnetic waveguides; Gain; Leaky wave antennas; Microstrip antennas; Substrates; Butterfly design; elevation angle; leaky-wave antenna; substrate integrated waveguide (SIW);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2014.2311464
