| 摘要 |
<p>An internal calibration system for use with a direction finding interferometer which comprises a plurality of receiving antenna elements (A1, A2), a local oscillator (20), a master receiving channel means (41), a receiving channel means (42), and a phase meter (92). The internal calibration system comprises a master switch (22), a master power divider and switch assembly (31), a power divider and switch assembly (32), two transmission lines (M1, M2) connected to the master switch assemblies (31, 32), an inter-channel transmission line (T12) connected to the master power divider and switch assembly (31) and to the other power divider and switch assembly (32), and a plurality of couplers (51, 52).</p> |
