Design of Miniaturized Dual-Mode Antenna for Handset Terminal Communication

Table 3

Comparison of the proposed antenna with the previous works.

Ref.	Dimension (mm^2)	Number of ports	Bandwidth (MHz)	VSWR or S11	Gain (dBi)	Pattern	Polarization	AR (dB)
[12]		Multiport	380~780		2.94	Omnidirectional radiation	Linear	/
			1230~1620		6.29	Endfire radiation	Linear	/
			1700~2340		6.76	Endfire radiation	Linear	/
[13]		Single-port	800~960		2.5	Omnidirectional radiation	Linear	/
			1700~2500		4.1	Approximate omnidirectional radiation	Linear	/
[18]		Dual-port	225~512	Not given	2.0	Omnidirectional radiation	Linear	/
			1164~1300; 1559~1626		0.8	Upper half-space radiation	Circular	Not given
This work		Single-port	440~560		1.69	Omnidirectional radiation	Linear	/
			1980~2010; 2170~2200		3.03	Upper half-space radiation	Circular	<1.3