| 单词 | quad antenna |
| 释义 | > as lemmasquad antenna 2. Radio. More fully quad aerial, quad antenna. An aerial in the form of a square or rectangle broken in the middle of one side. ΘΚΠ society > communication > telecommunication > radio communications > radio equipment > [noun] > aerial radiator1897 aerial wire1899 aerial1902 antenna1902 loop antenna1906 loop aerial1913 twin aerial1913 frame aerial1916 loop1922 beam aerial1926 cage aerial1926 Adcock1928 dipole1929 V antenna1932 beam antenna1935 rig1935 horn1936 whip1940 whip aerial1941 whip antenna1943 polyrod1945 unipole1945 slot aerial1946 slot antenna1946 dish1948 quad1951 V aerial1961 dish aerial1962 rectenna1964 omni-antenna1966 monopole1974 1951 C. Moore U.S. Patent 2,537,191 3 I have chosen to call this antenna a ‘quad’. 1961 Amateur Radio Handbk. (ed. 3) xiii. 385/2 A quad aerial is practicable for 14 Mc/s but it is, of course, a one-band aerial. 1976 R. L. Perkowski & L. P. Stral Joy of CB xi. 125 Even greater directionality is achieved with a stacked quad consisting of four elements. 2002 G. Fishbone Investor's Guide Nanotechnol. & Micromachines xiv. 158 If you want to make a quad antenna that will respond at 100 megahertz..the ideal design is..about 123 inches long. < as lemmas |
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