Bandwidth Enhancement of a Backfire Microstrip Patch Antenna for Pervasive Communication

Table 6

Comparison between the classic SBFA and the proposed antenna.

Serial number	Dimension/parameter	Antenna
		Classic SBFA	Proposed antenna
1	Center wavelength	𝜆0	48 mm
2	Big reflector diameter 𝐷2	2 𝜆0	50 mm; (1.04 𝜆0)
3	Small rectangular dimension 𝐷1	0.443 𝜆0	36.227 mm; (0.755 𝜆0)
4	Length of the antenna 𝐿𝐴	0.5 𝜆0	26.5 mm; (0.522 𝜆0)
5	Distance source, small reflector 𝑑1	0.25 𝜆0	1.5 mm; (0.031 𝜆0)
6	Distance source, big reflector 𝑑2	0.25 𝜆0	25 mm; (0.521 𝜆0)
7	Maximum gain 𝐺	13 dBi	6 dBi
8	Bandwidth bw	4–5%	52.8%