Antenna in common use for multi-frequency band

Abstract

Abstract PURPOSE:To attain ease of arrangement of a primary radiator by forming two foci being in the relation of mirror image respectively by one focus of a reflection mirror face and two frequency selecting plates so as to realize three mechanically separated foci in total. CONSTITUTION:The 1st primary radiator 3 at a frequency band f1 is arranged at a focus F0 of an offset reflection mirror face 1' and the 2nd primary radiator 4 for a frequency band f2 is arranged at a focus F1 being in the relation of mirror image to the focus F0 by the 1st frequency selecting plate 6. Moreover, the primary radiator 5 having the same frequency bands f3, f3' and obtaining different radiation beams P3, P3' is arranged at a focus F2 in the relation of mirror image to the focus F0 by the 2nd frequency selecting plate 7. The selecting plates 6, 7 are so constituted that the former passes through the frequency band f1 and reflects the frequency band f2 and the latter passes through the frequency bands f1, f2 and reflects the frequency bands f3, f3'.

Inventors

• 👤 Nobushige Tsukada
• 👤 束田　陳重
• 👤 Hiroyuki Kumazawa
• 👤 熊沢　弘之
• 👤 Makoto Ando
• 👤 真 安藤

Bibliographic Details