TY  - JOUR 
T1  - Microstrip feed spanner shape monopole antennas for ultra wide band applications
JO  - Journal of Microwaves, Optoelectronics and Electromagnetic Applications
A1  - Mandal, Tapan
A1  - Das, Santanu
SN  - 2179-1074
UL  - 10.1590/S2179-10742013000100002
VL  - 12 
Y1  - 2013
PB  - Brasil 
ER  -