Liquid crystal composition and element used for phase control of electromagnetic wave signal

A liquid crystal composition used for phase control of an electromagnetic wave signal of any frequency from 1 GHz to 10 THz, containing at least one compound represented by Formula (1), at least one compound represented by Formula (2), and at least one compound represented by Formula (3), wherein

• in Formulas (1) to (3),
• R1, R21, R22, R31, and R32 are alkyl having 1 to 12 carbon atoms or alkenyl having 2 to 12 carbon atoms, and at least one —CH2— in the alkyl or the alkenyl may be replaced by —O—;
• a ring A1 is
• Z11, Z21, Z23, and Z31 are single bond, —CH═CH—, or —C≡C—;
• Z12, Z13, Z32, and Z33 are single bond, —C≡C—, or —C≡C—C≡C—, and at least one of Z12 and Z13 is not a single bond;
• and Z22 is —C≡C— or —C≡C—C≡C—;
• L11, L12, L13, L14, L15, and L16 are hydrogen, fluorine, chlorine, methyl, ethyl, or cyclopropyl;
• L21, L22, L23, L31, L32, L33, L34, L35, and L36 are hydrogen, fluorine, chlorine, methyl, or ethyl;
• Y11 and Y12 are hydrogen, fluorine, or chlorine;
• and
• n1 is 0, 1, or 2.