Radio amateur antennas

These antennas for the frequency bands of 2m and 70cm, are designed by radio-amateur UA1MC

TYPE	Frequency	Elements	Gain, dBi	VSWR	Front to back ratio, dB	Beam width		Dimensions, mm
						E	H
SF3/144	144-146	3	7,4	no more 1,3	16	Pattern		1060×1030×105
						± 34°	± 57°
SF6/144	144-146	6	11,8	no more 1,3	>20	Pattern		2365×1050×140
						± 24°	± 29°
SF9/144	144-146	9	13,4	no more 1,3	>18	Pattern		4083×1050×140
						± 21°	± 24°
SF9/144 high gain	144-146	9	13,9	no more 1,5	34	Pattern		4061×1040×140
						± 19°	± 20°
S18/430-435	430-435	18	16,75	no more 1,3	>20	Pattern		3226×342×140
						± 13°	± 15°