Title :
Wideband cavity backed slot antenna for automotive monopulse radars
Author :
Vikram, V.M. ; Sha, Shaoshu ; Bredow, J.W. ; Lu, Min
Author_Institution :
Dept. of Electr. Eng., Univ. of Texas at Arlington, Arlington, TX, USA
Abstract :
A wideband cavity backed slot antenna is designed for automotive-borne monopulse radar applications. A rectangular slot is used to realise broad bandwidth; the slot is backed by a cavity, and the vertical walls of the cavity are implemented by discrete vias; and the slot is fed by a microstrip line. The proposed antenna is compact, robust, fully planar and easy to integrate. A two-element array is fabricated and tested. Measured input impedance is matched to 50 ?? within band [2.61 GHz, 3.44 GHz] (27.5% bandwidth); and monopulse beam-scanning is successfully demonstrated.
Keywords :
broadband antennas; microstrip lines; road vehicle radar; slot antennas; automotive monopulse radar; frequency 2.61 GHz; frequency 3.44 GHz; microstrip line; monopulse beam-scanning; rectangular slot; two-element array; wideband cavity backed slot antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.0798
