| 摘要 |
PURPOSE:To apply phase correction over a wide range by using a delay line as a phase shifter. CONSTITUTION:The phase shifter 5 matching the phase of each antenna is provided between a transmitter and the antenna. Each shifter 5 consists of delay lines 6-1-6-n having different lengths A1, A2-An and changeover switches SW1-SWn connecting or short-circuiting the lines. A switch control section 7 changes over the switches of the shifter 5 to combine optional delay lines for required phase correction. Through the constitution above, the phase matching over a wide band is executed by a simple circuit.
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