HVS Antenna Pattern Measurement System is ideal for making quick, accurate, and cost effective measurement of antenna patterns. Some of the other applications include radiated emission measurements and radar cross section (RCS) measurements. Since HVS is directly engaged in R&D, it offers customers technical knowledge and experience for customizing the system and software to suit their needs.

In this method, the probe antenna is supported fixed in space, while the antenna under test is stepped in angle about the azimuth axis. This system can provide complete angular coverage of the test antenna's field in one plane. By mouting the antennas with the polarization rotated 90°, both E-Plane and H-Plane patterns can be measured. The software can control various network analyzers used to transmit and receive microwave signals from the test and probing antennas. The software completely automates the calibration process, as well as data acquisition and data plotting functions (polar, linear, and surface plots).

The user can either make single point (Fast C.W.) measurements or sweep over a frequency range and implement time domain gating. The software also communicates with the positioner controller. The positioning system and the measurement system can be custom tailored for your specific application needs.

FEATURES:

• One axis position controller with RS232 / Ethernet interface

• Azimuth positioner with 0.1° accuracy

• GPIB interface for HP/Agilent network analyzer

• Automation Software (Windows OS)

• Integrated positioner and controller units

• Select from 3 models with vertical loads ranging from 25 lbs to 500 lbs.
  Contact HVS for heavier loads.

• Optimum performance relative to size of turntable

• Integrated reduction gear with low backlash

• Leveling feet and a built-in sensitive level indicator

• Antenna measurement software is compatible with a variety of network
  analyzers (HP 8720, 8722, 8510 series, PNA E8362B, E8363B, E8364B, E8361A) and can be customized for other instruments (For example, Separate RF Generator and Spectrum Analyzer)

• Software kill switch

• Optional Hardware kill switch is available

• The system can be modified to meet your specifications

Parameters		AMS1	AMS2	AMS3
Total Vertical Load Centered	(lb)	25	100	500
Total Bending Moment	(lb-ft)	16	73	300
Maximum offset permitted for above vertical load	(in)	7.68	8.76	7.20
Maximum Rotation speed	(°/s)	90	90	30
Angular Resolution	(°)	0.009	0.006	0.006
Angular Position Accuracy	(°)	0.1	0.1	0.1
Limit to Limit Travel	(°)	+/-400	+/-400	+/-400
Peak Torque	(lb-ft)	12	32	70
Turntable diameter	(in)	6	8	12
Turntable Height above floor	(in)	10.5 to 11	10.5 to 11	12 to 13
Power Requirements		115 VAC, < 5 Amps	115 VAC, < 5 Amps	115 VAC, < 5 Amps
Computer Interface		RS-232/ Ethernet	RS-232/ Ethernet	RS-232/ Ethernet

 

Contact HVS with questions on how the Antenna Pattern Measurement System can be used for your application. HVS will custom engineer the system to meet your needs and supply the necessary software.