표 1. | Table 1. 초크 링 개수에 따른 안테나 성능 변화 | Variation of antenna performance by the number of choke rings.

Number of choke rings	Gain [dB]	12 dB beamwidth [deg.]
		ϕ = 0°	ϕ = 90°
2	9.01	134.00	139.82
4	9.13	133.17	143.31
6	9.42	133.52	147.69