FUNCTIONAL

RF DECK

DESCRIPTION

ASSEMBLIES

 

ters. PIN switch drive current is generated by inter-

 

nal drivers that are controlled by signals received

 

from the A12 Analog Instruction PCB. The switched

 

low-pass filters provide rejection of unwanted har-

 

monics. The 0.5 to 2.2 GHz RF signal has four filter-

 

ing paths—700 MHz, 1000 MHz, 1400 MHz, and

 

2200 MHz. After routing through the appropriate

 

filter path, the 0.5 to 2.2 GHz RF signal goes to con-

 

nector J2. A portion of the down converter’s RF out-

 

put signal is detected, amplified, and coupled out for

 

use in internal leveling. The detected RF sample is

 

routed to the A10 ALC PCB.

 

The 0.5 to 2.2 GHz RF output from the down con-

 

verter goes to input connector J1 of the switched fil-

 

ter assembly. There, the 0.5 to 2.2 GHz RF signal is

 

multiplexed into the switched filter’s output path.

Switched

The switched doubler module (SDM), found in

Doubler

>20 GHz models, is used to double the fundamental

Module

frequencies of 10 to 20 GHz to produce RF output

 

frequencies of 20 to 40 GHz.

 

26.5 GHz Models

 

The RF signal from the switched filter assembly is

 

input to the SDM at J1. During CW or swept fre-

 

quency operations in the 20 to 26.5 GHz frequency

 

range, the 10 to 13.25 GHz RF signal input is routed

 

by PIN switches to the doubler/amplifier. PIN

 

switch drive current is provided by the A9 PIN Con-

 

trol PCB and bias voltage for the doubler/amplifier

 

is supplied by the A14 SDM Driver PCB. The RF

 

signal is amplified, then doubled in frequency. From

 

the doubler, the 20 to 26.5 GHz RF signal goes to

 

the bandpass filter. After passing through the band-

 

pass filter, the 20 to 26.5 GHz RF signal is multi-

 

plexed by the PIN switches to the SDM output at

 

connector J2. RF signals input to the SDM of

 

￿20 GHz are multiplexed through by the PIN

 

switches to output connector J2.

 

40 GHz Models

 

The RF signal from the switched filter assembly is

 

input to the SDM at J1. During CW or swept fre-

 

quency operations in the 20 to 40 GHz frequency

 

range, the 10 to 20 GHz RF signal input is routed by

 

PIN switches to the doubler/amplifiers. PIN switch

 

drive current is provided by the A9 PIN Control

 

PCB and bias voltage for the doubler/amplifiers is

 

supplied by the A14 SDM, SQM Driver PCB. The

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682XXB/683XXB MM

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Anritsu 682XXB, 683XXB manual Module, GHz Models
Page 53 Page 55

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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