Wulandari, Dina, 		Wijayanto, Heroe, AND 		Edwar, Edwar.
" An Investigation of Defected Ground Structure Effect on Bandwidth Enhancement of U-Shape Microstrip Antenna for Small Ultra Wide-Band Radar Device" <em>JMECS (Journal of Measurements, Electronics, Communications, and Systems)</em> [Online], Volume 5 Number 1 (31 December 2019)