Compact and Multiband MIMO Dielectric Resonator Antenna for Automotive LTE Communications

Table 2

Comparison with other studies.

Reference	Electrical size	Matching bands (MHz)	Maximum total efficiency (dB)	Maximum realized gain (dBi)
[22]		790–862	−4	−1.5
		2300–2500	−0.9	5
		3200–3600	−0.9	6.5
[25]		828–880	−0.56	1.6
		1600–2200	−0.23	4.3
[26]		828–880	N/A	1
		1710–2170		1
		2490–2690		1
[27]		780–2350	N/A	4
				6
[28]		698–960	N/A	4
		1710–2170		5.5
		2490–2690		2.5
[29]		698–960	−1.3	5
		1470–2690	−0.7	6
[30]		698–960	N/A	4.5
		1470–2690		4.5
		5850–5925		4.5
[31]		700–960	N/A	4
		1700–2170		5.2
		2500–2700		7
		3400–3800		8.1
[32]		698–960	N/A	4
		1710–2690		4
Proposed antenna		790–894	−0.97	2
		1710–2170	−0.46	4
		2490–2690	−0.97	4