Wideband Cylindrical Dielectric Resonator Antenna Operating in HEM_11δ Mode with Improved Gain: A Study of Superstrate and Reflector Plane

Table 3

Comparison of proposed work with available literature.

Ref.	Antenna col. (mm^3) (Avg.)	Technique	Operating at; GHz	BW	Peak gain (dBi)
[7]	358.1	FSS superstrate	61.34	13.56%	11
[8]	19384.75	Stacking	1.8	2.7%	6.2
[9]	31423.7	Stacking	4.35/5.4	40%	~9
[10]	111000	EBG	2.28	6%	~8
[11]	32788.8	Surface mounted horn	6.25/7.75	25%	8.5
[12]	~32788.8	Surface mounted horn	6.25/7.75	21.3%	8
[13]	7759.73	Higher mode	6/7.4	—	8.5
[14]	1780000	Loaded metal sheet	3.7	23%	12.2
[15]	153000	Loaded patches	2	25.6%	7.54
[16]	≫32874	Parabolic conductor	5	1.8%	NA
[17]	30874.47	Flat conductor	5	1.8%	NA
[18]	30874.47	Box conductor	5	1.8%	NA
[19]	446000	Conductor strip	2.2	Multiple
Present	30000	Superstrate + reflector	7.4/7.9	15.18%	11.34

Volume with respect to single element, 10.2 dBi → 4 element (E-plane array), 12.5 dBi → 4 element (H-plane array), and 17.6 dBi → 16 element (planar arrays).