The overall efficiency of the new indoor digital TV
receiving internal antenna is shown in Fig.4. The average
efficiency is more than 80% over the whole bandwidth. Fig.5
shows the peak gain of the new antenna which is about 2 dBi
over the whole bandwidth. This gain can be significantly
increased by adding EBG structures as will be shown below.
Fig.6 shows the radiation patterns of the new antenna at 600
MHz which are omni-directional with about 2 dBi peak gain.
The straight antenna is sensitive to only one polarization. Dual
polarized antennas can be obtained by bending the antenna as
shown in the next section.