| 摘要 |
PURPOSE:To make a exclusive compensator unnecessary and to change the connection order of filters by inserting an array of cascaded branching means and coupling means together with a branching means or a coupling means for adjacent frequencies, where positive and negative phase delay gradients are generated, between this means and an antenna. CONSTITUTION:Plural branching filters 4 in the transmission side of a heterodyne repeating installation are mounted in the order of F1, F3, F2-FEND from the side of a transmission antenna 1, and filters 4 in the reception side are mounted in the order of F1, F3, F2-FEND from the side of a receiving antenna 2. Circulators 3 are connected as coupling means to individual filter 4, and terminators 5 are connected to circulators 3 connected to FEND of filters 4. These filters 4 and circulators 3 are connected together with the filter 4 or the circulator 3 for adjacent frequencies, where positive and negative phase delay gradients are generated, between antennas 1 and 2 terminators 5; and thus, the private compensator is made unnecessary, and the connection order of filters 4 is changed. |
