Novel Miniaturized Octaband Antenna for LTE Smart Handset Applications

Table 1

Comparison of the dimension, working bandwidth, and radiation efficiency of the antennas reported in references.

References	Dimension of substrate (mm^3)	Dimension of antenna (mm^3)	Frequency (MHz)	Radiation efficiency
[3]	100 × 60 × 0.8	9.5 × 60 × 3	698–960, 1710–2690	52–75% (L); 53–78% (H)
[6]	122 × 46 × 1	11 × 46 × 7	698–960, 1710–2690	55.3–71.3% (L); 32.5–98.1% (H)
[7]	115 × 40 × 1	15 × 40 × 1	685–1345, 1685–2985	50–70% (L); 50–82% (H)
[8]	110 × 55 × 1	12 × 55 × 4	809–975, 1675–2703	24%–44% (L); 40%–78% (H)
[12]	150 × 200 × 0.8	10 × 34.5 × 0.8	704–960, 1710–2690	40%–62% (L); 64%–92% (H)