Dielectric Resonator Antennas: Basic Concepts, Design Guidelines, and Recent Developments at Millimeter-Wave Frequencies

Table 6

Most Recent Advances in dielectric resonator antennas for millimeter-wave Applications.

Reference/Year	DRA; topology	Relative; permittivity	Feeding; mechanism	Technology	Frequency; (GHz)	Impedance; bandwidth (%)	Gain; (dBi)
[55]/2009	Ring with microstrip Patch	10	Coupling slot	PCB	60	15	12
[61]/2010	Cylindrical	10	Coupling slot	PCB	60	24	5.5
[62]/2011	Rectangular	10	Coupling slot	PCB	24	3.8	6.3
[63]/2011	Rectangular	10.2	Capacitive slot/CPW	PCB	60	17.4	10.2
[64]/2012	Cylindrical	10.2	Coupling slot	PCB	60	14.3	15.7
[65]/2013	Cylindrical	10.2	Coupling slot	PCB	60	22.9	8.6
[66]/2016	Cylindrical	10.2	Coupling slot	PCB	60	10	—
[60]/2016	Ring with microstrip Patch	10.2	Coupling slot	PCB	60	12	16.5
[67]/2007	Rectangular	48	CPW	Integrated on chip	60	2.8	3.2
[68]/2008	Cylindrical	42	Folded dipole/CPW	Integrated on chip	27.7	9.8	1
[69]/2010	Rectangular	38	H-slot/CPW	Integrated on chip	35	12	0.5
[70]/2012	Rectangular	10	Meander slot/CPW	Integrated on chip	130	12	2.7
[70]/2012	Two-layer rectangular	10	Meander slot/CPW	Integrated on chip	130	11	4.7
[71]/2013	Rectangular	12.6	Coupling slot	Integrated on chip	60.5	6.1	6
[72]/2015	Rectangular	9.8	E-shaped/CPW	Integrated on chip	340	12	10
[73]/2015	Circular	12.6	Dipole/CPW	Integrated on chip	60	3.78	7

is estimated from graph.