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2-6 RF Deck Assemblies
Functional Description
2-10
PN: 10370-10386 Rev. B
MG362x1A MM
2-6
RF Deck Assemblies
The primary purpose of the RF deck assembly is to generate CW RF signals and route these signals to the front
panel
RF OUTPUT
connector. It is capable of generating RF signals in the frequency range of 0.008 to 70 GHz
(0.1 Hz to 70 GHz with Option 22).
The series MG362x1A use a single YIG-tuned oscillator. All other frequencies (except for 0.1 Hz to 10 MHz),
are derived from the fundamental frequencies generated by this oscillator, as follows:
•
RF output frequencies of 9 kHz to 2.2 GHz are developed by successively dividing the fundamental
frequencies of 2 to 4.4 GHz.
•
RF output frequencies of 2.2 GHz to 20 GHz are produced directly from the YIG-tuned Oscillator.
•
RF output frequencies of 20 to 31.8 GHz are produced by doubling the fundamental frequencies of
10 to 15.9 GHz.
•
RF output frequencies of 20 to 40 GHz are produced by doubling the fundamental frequencies of
10 to 20 GHz.
•
RF output frequencies of 40 to 43.5 GHz are produced by quadrupling the fundamental frequencies of
10 to 12.5 GHz.
RF Deck Configurations
All MG362x1A RF deck assemblies contain a YIG-tuned oscillator, a switched filter assembly, and a directional
coupler. Beyond that, the configuration of the RF deck assembly varies according to the particular instrument
model and options installed.
Refer to the block diagrams in
, which show the
various RF deck configurations and include all of the common RF components found in the series MG362x1A
RF deck assemblies. Refer to these block diagram while reading the following paragraphs.
YIG-tuned Oscillator
There are two YIG-tuned oscillator configurations. The MG362x1A uses a single-band, 2 to 10 GHz, YIG-tuned
oscillator. All other MG362x1A models use a dual-band, 2 to 20 GHz YIG-tuned oscillator. The dual-band
YIG-tuned oscillator contains two oscillators-one covering the frequency range of 2.0 to 10.0 GHz and one
covering the frequency range of 10.0 to 20.0 GHz. Both of these oscillators use a common internal amplifier.
The YIG-tuned oscillator generates RF output signals that have low broadband noise and low spurious content.
It is driven by the main tuning coil current and bias voltages from the B6 YIG Module assembly and the fine
tuning coil current from the YIG lock Module. During CW mode, the main tuning coil current tunes the
oscillator to within a few megahertz of the final output frequency. The phase-lock circuitry of the YIG loop then
fine adjusts the oscillator’s fine tuning coil current to make the output frequency exact.
Summary of Contents for Rubidium MG362 1A Series
Page 12: ...Contents 10 PN 10370 10386 Rev B MG362x1A MM ...
Page 16: ...1 9 ESD Requirements General Information 1 4 PN 10370 10386 Rev B MG362x1A MM ...
Page 30: ...2 6 RF Deck Assemblies Functional Description 2 14 PN 10370 10386 Rev B MG362x1A MM ...
Page 66: ...3 11 FM and Phase Modulation Calibration Calibration 3 36 PN 10370 10386 Rev B MG362x1A MM ...
Page 292: ...B 5 Self Test Messages Instrument Messages B 8 PN 10370 10386 Rev B MG362x1A MM ...
Page 293: ......