Internal Broadband Folded Monopole Antenna for DTV Laptop Application

A novel low profile metal plate monopole antenna with L-shape silt for laptop application is proposed. The antenna covers DTV (470 MHz ~ 740 MHz) frequency band and can be easily constructed by folding the planar patch with a silt and occupies a small volume of 56 mm x 23 mm x 10 mm. The measured return losses for operating frequencies over the DTV band are greater than 7.5 dB. The proposed antenna shows nearly omni-directional or monopole-like radiation patterns and has good antenna gain over the frequencies of interest.