Designed for use in the receiving units of modern weather and navigation radars and provides:
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reception in a wide frequency range and conversion of radar signals in modes with a narrow and wide band of IF output signals;
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discrete adjustment of the transmission coefficient by external control signals in broadband mode;
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high radio-tightness of the receiver due to shielding of all high-frequency modules.
The radar receiving module has an input attenuator for adjusting the input signal level and protecting the low-noise amplifier for the duration of the probe pulse, with a short recovery time.
Specifications:
- operating frequency range .......................................... X-band;
- noise figure, dB .....................................………………………........3,5;
- the upper limit of the linearity of the amplitude characteristic, dBm ..................................................................- 35;
- coefficient of a standing wave at the input, dB ……………………………......................................................................... 2.5;
- selectivity for mirror receiving channels, dB .................. 40;
- bandwidth according to fпч2 = 28 MHz at the level of -3 dB, MHz ......//....................................................................................5;
- bandwidth according to fпч2 = 84 MHz at the level of -3 dB, MHz .......................................................................................... 30;
- depth of discrete gear ratio adjustmentin broadband mode, dB …………………………………...................................…….........15;
- non-identical phase-frequency characteristics betweenoutputs of quadrature channels (broadband mode) ............................................................................................... (90 ± 5) º;
- the maximum output voltage at the outputs fpch2 = 84 MHz, V ........................................................................................... ± 1.
