FUNCTIONAL

RF DECK

DESCRIPTION

ASSEMBLIES

 

struments to the internally generated pulse; the

 

video pulse is a TTL level copy of the RF output

 

pulse; and the sample/hold signal synchronizes the

 

ALC loop to the ON portion of the pulse modulating

 

waveform.

 

The 682XXB/683XXB has five pulse modulation

 

modes:

 

Internal pulse modulation mode – The pulse

 

modulation waveform is generated and timed

 

qinternally.

 

External pulse mode – The external pulse

 

source signal from the front or rear panel con-

 

nectors is interfaced by the pulse generator to

 

the pulse modulation driver.

 

External triggered mode – The pulse generator

 

is triggered by the external pulse source signal

 

to produce the pulse modulation waveform.

 

External gated mode – The external pulse

 

source signal gates the internal pulse genera-

 

qtor on and off.

 

Composite mode – The external pulse source

 

signal triggers the internal pulse generator

 

and also modulates the RF output signal. The

 

pulse generator produces a delayed, single

 

pulse waveform that also modulates the RF

 

output signal.

2-5RF DECK ASSEMBLIES

The primary purpose of the RF deck assembly is to generate CW and

 

swept frequency RF signals and route these signals to the front panel

 

RF OUTPUT connector. It is capable of generating RF signals in the

 

fre uency range of 0.01 to 65 GHz.

 

The series 682XXB/683XXB synthesized signal generators use a single

 

2 to 20 GHz YIG-tuned oscillator. All other frequencies are derived

 

from the fundamental frequencies generated by this oscillator, as fol-

 

lows:

 

RF output frequencies of 0.01 to 2 GHz are developed by down-

 

converting the fundamental frequencies of 6.51 to 8.5 GHz.

 

RF output frequencies of 0.5 to 2.2 GHz are developed by down-

 

converting the fundamental frequencies of 2 to 4.4 GHz.

 

RF output frequencies of 20 to 40 GHz are produced by doubling

 

qthe fundamental frequencies of 10 to 20 GHz.

 

RF output frequencies of 40 to 65 GHz are produced by quadru-

 

pling the fundamental frequencies of 10 to 16.25 GHz.

 

The following paragraphs briefly describe the operation of the RF deck

 

assembly.

682XXB/683XXB MM

2-19

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Anritsu 683XXB, 682XXB manual Functional RF Deck Description, 5RF Deck Assemblies
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682XXB, 683XXB specifications

The Anritsu 683XXB and 682XXB series are advanced vector network analyzers (VNAs) renowned for their precision and versatility in characterizing RF and microwave components. Designed for engineers and technicians involved in the development, manufacturing, and testing of high-frequency devices, these analyzers offer state-of-the-art technology that ensures optimal performance in various applications.

One of the hallmark features of the Anritsu 683XXB and 682XXB is their high dynamic range, which allows for accurate measurements of small reflection and transmission coefficients, essential for assessing the performance of complex RF structures. With frequency coverage extending from DC to 70 GHz, these analyzers cater to a broad spectrum of applications, making them suitable for industries such as telecommunications, aerospace, and automotive.

The user-friendly interface of the Anritsu VNAs is complemented by a high-resolution display, which facilitates easy navigation through measurement setups and results. The analyzers feature multiple measurement modes, including S-parameter measurements, time-domain analysis, and noise figure measurements, providing engineers with comprehensive tools for device characterization.

Both the 683XXB and 682XXB implement advanced calibration techniques, including automated calibration and error correction methods, to enhance measurement accuracy. These methods significantly reduce the uncertainties associated with test setups, enabling reliable performance evaluations of components like filters, amplifiers, and antennas.

Anritsu’s proprietary technologies, such as the VectorStar and ShockLine series integration, further empower the 683XXB and 682XXB models. These technologies enable high-throughput testing and improved measurement stability, addressing the needs of modern production environments that demand rapid turnaround times without sacrificing precision.

Additionally, the analyzers come equipped with various connectivity options, including USB, LAN, and GPIB, ensuring seamless integration into automated test systems. This adaptability enhances the analyzers' utility in both laboratory settings and field operations.

In conclusion, the Anritsu 683XXB and 682XXB series vector network analyzers represent the pinnacle of RF and microwave testing technology. With their unmatched precision, comprehensive measurement capabilities, and advanced calibration techniques, these instruments are indispensable tools for professionals striving to push the boundaries of high-frequency device performance and reliability.
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