| 摘要 |
An improved monopulse comparator circuit is achieved by a unique circuit layout. Four hybrid junctions are arranged on a low dielectric constant substrate and are interconnected in such way as to form a closed square figure. Distances between adjacent hybrid junctions are thus minimized. Input lines which connect the comparator circuit to a monopulse antenna array are disposed on the substrate external to the closed figure, as are output lines which connect the comparator to a monopulse guidance system. Right angle microstrip to waveguide transitions are used so that the comparator circuit need not be integrated onto the same substrate as the antenna array and the guidance system. The entire comparator layout is channelized to increase isolation between closely spaced lines.
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