Compact U-slotted antenna for broadband radar applications

The original u-shaped patch antenna is properly modified in this work to provide a compact and broadband antenna configuration with reduced cross-polar effects,well suitable for modern radar applications. the proposed antenna layout is applied to design,realize,and test two different prototypes working at p-band and c-band,typically adopted for ground-penetrating radar. the experimental results successfully demonstrate a large operating bandwidth between 15% and 20%,a significant reduction of size (about half of the standard configuration),and a low cross-polarization level within the operating frequency range. copyright © 2013 s. costanzo and a. costanzo.