2024-01-12T11:43:39Z 2024-01-12T11:43:39Z 2022-01-14 1990-05-01 https://pubs.kist.re.kr/handle/201004/86131 Diffraction pattern by a trapezoidal cylindrical cavity Conference 1 IEEE, pp.1346 - 1349 IEEE 1346 1349 IEEE/AP Symp. Digest - 직접입력