Design and Implementation of Novel H-Shaped Self-Diplexing SIW Rectangular Cavity-Backed Antenna with Harmonic Suppression for Terrestrial Communications

Table 1

Comparison of the proposed work with previously published self-diplexing SIW antennas.

References	Frequencies (GHz, , )	FWB (%, at , )	FTBR (dB, at , )	Gain (dBi, at , )	Isolation (dB)	Slot shape	Self-multiplexing	Harmonic suppression
[11]	9, 11.2	NA	21, 19	4.3, 4.3	25	Bowtie	Yes	No
[12]	8.26, 10.46	NA	23, 20	3.56, 5.24	27.9	Transverse	Yes	No
[13]	6.44, 7.09	2.1, 2.4	NA	3.2, 4.8	30	Rectangular	Yes	No
[23]	7.8, 9	<1, <1	NA	5.4, 5.1	22	Cross	Yes	Yes
This work	8.95, 10.15	2.0, 3.1	21.01, 25.62	5.11, 5.41	29.9	H	Yes	Yes

FWB = fractional bandwidths; FTBR = front-to-back ratio; NA = not available.