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Array Solutions

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Vector Network Analyzer model

                   VNA 2180

      Vector
       Network
        Analyzer

 

Hi Bob,

Thanks for the help. The 2180 has now won over the engineers, and is proving itself to be a much better design tool than our HP3577.

Regards,

Mike Sandvig

Production Manager

Genisco Filter Corp.  

 

 
 

The VNA 2180 measures impedance (magnitude and phase) and filter transmission in the range of 5KHz to 180 MHz.

A PC is used to plot parameters, such as, impedance, SWR, S11 and S21.

The test frequency is generated digitally. A 12 bit analog to digital converter digitizes the raw data. This avoids non-linearity associated with diode detectors, and results in very good dynamic range and linearity for accurate magnitude and phase measurements.

Main Features

bulletPort A is equivalent to an antenna analyzer.  (Similar to the AIM4170C)
bulletPort B has a 50 ohm input impedance with return loss greater than 30dB
bulletPort B Nominal Dynamic Range: 100dB up to 50MHz, 85dB up to 180MHz
bulletProgrammable RF amplitude for Port A  (+7 to 19 dBm).
bulletResistance and reactance measurements of antennas and discrete components
bulletImpedance measurements through filters or networks
bulletMarkers for impedance scans and Smith charts
bulletParameters that can be plotted include:
bullet Resistance and reactance for series or parallel equivalent circuits
bulletSWR  or reflection coefficient (S11)
bullet Return loss
bullet Phase angle with sign
bulletTwo port network transmission (S21)
bulletCable length, impedance, loss, and velocity factor
bulletDistance to fault (open or short)
bulletSmith chart displays (featuring phase rotation and zoom)
bulletBand scan to check for interfering signals
bulletQuartz crystal parameter measurements
bulletPreprogrammed functions, such as tuning a WL stub, and many more
bulletCalibration loads are included
bulletNo internal adjustments
bullet Optically isolated USB interface to PC

Note -  CIRCUITS AND PROCEDURES used by this antenna analysis system are covered by US Patent No. 7,629,795

 

The V

                                                                                                                          

 

10.7 MHz Bandpass filter showing VNA scan overlaid on a scan using Rohde & Schwarz FSH3.

159 MHz Notch filter showing VNA 2180 overliad on top of a scan from the FSH3

COMPARISON WITH THE AIM4170

The VNA2180 is not a replacement for the AIM4170. The AIM4170 will continue in production.

Parameter VNA2180 AIM4170
Output signal into 50 ohms 0.55Vrms (+8dBm) 0.028Vrms (-18dBm)
Max interference input
while measuring
1.4Vrms (+16dBm) 0.1Vrms (-7dBm)
Programmable output level Yes No
Two ports for filter testing Yes No
Program port for accessories Yes No
Antenna & component testing Yes Yes

 

Impedance measurements can range up to 10K ohms. The sign of the phase angle indicates either inductive or capacitive reactance without ambiguity.

The RF generator can also be used as a signal source for testing receivers. The frequency is very stable and it can be calibrated to WWV.

Digitized data is sent to the PC via an optically isolated USB port. Power for the VNA can be obtained from a small DC power supply or a battery. With a laptop computer, the unit is quite small and portable. Measurements can be made at ground level and translated as if they were at the antenna feedpoint by using the refer to antenna function.

The impedance at the antenna itself can be read with the VNA located in the shack at the receiving/transmitting end of the coax. The cable can be any length. The cable's impedance and loss characteristics are determined by a simple calibration procedure and the antenna's impedance is then plotted directly during the scan.

Numeric values can be read from the graph data using the mouse-controlled cursor.

The scan data can be saved to disk or printed to compare before and after results. It can also be imported into spreadsheet programs for further analysis.

Buy it now on our secure shopping cart

We DO NOT ship a software CDROM with the analyzer.

Get the Software Here >  http://w5big.com/vna2180.htm

Download the VNA2180 QuickStart Guide Here: VNAQuickStart

 

We DO NOT ship a software CDROM with the analyzer.

Analyzer and technology used is Patented