370MHz to 4GHz Radiation Measurement System
RMS-0440
- Measure Antenna Radiation Patterns, TRP, Efficiency, Directivity and more
- Fits in lab or office space
- No need for an anechoic chamber
- Measure 3-axis patterns in under 2 minutes
- Base accuracy ±1 dB
- Repeatability ±0.5 dB
- Complete system includes all hardware and software
- Optional heavy duty table
- 30 day money back guarantee
Overview
RMS Overview
The MegiQ Radiation Measurement System (RMS) is a compact test system that performs 3-axis radiation pattern measurement in non-anechoic spaces.
With a frequency range of 370 MHz to 4 GHz it is well suited for characterization and measurement of Antenna Radiation Patterns, Antenna Gain, ERP, TRP, Field Strength.
Extensive evaluation has shown that – with reasonable setup - the accuracy of the RMS is similar to that of anechoic test labs.
Characterize wireless devices of today, like IOT devices, routers, phones, domotica products, electronic gadgets, tablets, laptops, RF-modules etc.
The RMS is used for these measurements:
- Radiated output power patterns of a wireless device
- Harmonic radiation patterns (up to 4 GHz) of wireless devices
- Gain and radiation patterns of standalone antennas, using the generator option
- Gain over frequency of antennas
- Radiation patterns over frequency of antennas
- Beamwidth and max gain of directional antennas, over frequency
While this is usually measured in an anechoic chamber to avoid reflections to affect the measurement, the RMS has a smart antenna design to reduce the sensitivity for reflections. This allows radiation measurements to be made in relatively small lab or office spaces.
The RMS system itself has an accuracy of ± 1dB. In a reasonable space one can expect an extra uncertainty of 1 or 2 dB. The repeatability of measurements is excellent at ±0.5 dB. No user calibration is required.
RMS system diagram
Measurement
- Antenna height 100 cm to 170 cm.
- Dual Polarization Antenna.
- Dual channel measuring receiver.
- Generator output (option).
- Rotation controller unit.
- Power supply.
- USB connection for computer control.
Turn Table
- Height 70 cm and 130 cm.
- Stepper motor drive.
- 30 seconds per rotation.
- Smooth acceleration.
- Table size 28 x 28 cm.
- Max EUT weight: 7.5 kg.
- Heavy Duty table: 100 x 50 cm, 30 kg.
The RMS rotates an object on the turntable and measures the radiation. With a rotation around the X, Y and Z axis the software plots the patterns and calculates statistics including Total Radiated Power (TRP). Each measuring point can contain a sweep of multiple frequencies, so that multiple radiation patterns can be measured in one rotation sequence.
With the Generator option the RMS can also perform an antenna sweep and show the antenna gain over frequency.
The RMS comes with an object fixture for small devices that allows easy positioning of the EUT in orthogonal positions on the object table. A labeling system helps the user to keep track of the axes.
The RMS system works well in a moderate space. A 4 x 4 x 3 meter room works well above 800 MHz. For smaller spaces or lower frequencies a few strategic absorbers may be required.
Complete measurement system, includes:
- Antenna base with mast
- Measuring antenna
- Measuring receiver
- Turn table with masts
- Turn table platform
- Object fixture
- RMS Software
- Tools for setup and measuring
- Cables
Options:
- RMS-GEN: Internal 3GHz Signal Generator
- RMS-LASER: Internal Laser Pointer
- RMS-HDTT: Heavy Duty Turn Table
- RMS-COAX: 5 meter quality SMA coax
Programming API
With our RMS Application Programming Interface the RMS systems can be expanded with custom features and data processing as well as integration with other systems.
Features
Features
- Turnkey system includes rotation table, measurement antenna and receiver and application software.
- Dual polarization antenna and dual channel receiver.
- Frequency range 370 MHz to 4 GHz.
- Base accuracy ±1.0 dB (in anechoic environment).
- Repeatability ±0.5 dB.
- Factory calibrated. No user calibration necessary.
- Measuring distance 0.8 to 3 meter (~3 to 10 feet)
- Measures the phase between H and V polization.
- Measures Constant Carrier, PRN9 and packet streams.
- Measures multiple frequencies at the same time.
- Measures 3-axis radiation patterns in minutes.
- Needs only one rotation per axis.
- 3D representation of measurements.
- Measurement quantities:
Field Strength
EiRP
Total Radiated Power
Antenna Gain
Antenna Efficiency
Front to Back ratio
3dB / 10db Beam width - Real-time power and polarization indicator.
- Generator-port option allows closed loop measurement of an Antenna under test up to 3GHz.
- MegiQ VNA can be used as a tracking generator up to 4 GHz.
- System can generate a horizontal or vertical test signal.
- License free software included.
- Session manager for storing measurements and configurations.
- Versatile report output.
- Heavy duty table optional.
- Can be used in normal office space with moderate space requirements.
No need for an anechoic chamber. - Compact and portable system.
- Programming API for enhancing functionality.
Software
RMS Software
The software for controlling the RMS and managing the measurement data is provided license free.
The RMS software controls the measurement system and allows easy setup and performing the measurements, organizing the data and create reports. It will guide the user through the 3 rotation axis steps.
For EUT with a constant carrier or packet stream mode the RMS is used in a passive mode to rotate the EUT and record the field strength. For constant carriers, the receiver can measure multiple frequencies for each measurement point so that harmonic patterns (up to 4 or 6 GHz) can be measured simultaneously. The minimum step size is 2 degrees.
For EUT without a transmitter (prototype or standalone antenna) the Generator output can be used to feed a test signal to the EUT. In this mode the RMS can measure rotation patterns (at up to 30 frequencies simulations) or perform a frequency sweep of the antenna gain. The S- parameters of the feed coax can be imported to compensate for the loss and impedance of the cable.
In idle mode the RMS monitors the signal and shows the polarization in real time. It can also transmit a carrier with a calibrated power on the horizontal or vertical antenna.
The results can be presented in Antenna Gain (dBi), Radiated Power EiRP (dBm) or Field Strength (dBuV/m). The software calculates statistics such as Min/Max level, Average, Total Radiated Power (TRP), Antenna Efficiency (dBi) and Directivity (dB).
The rotation table can be controlled manually and a rotation offset aides in the rotation of large objects.
With several preset measurements the software is very easy to use for most common measurements like rotations and sweeps.
The graphs can be dragged in any way with any of the graph types for the measurement. Report output follows the layout of the screen. There are several color schemes.
Measurements can be stored in a session manager that keeps the measurements for a session in a single file. All settings including cable correction, screen layout, markers etc are stored along with the measurement in the session.
For measurements that use the generator output or an external generator, the S-parameters (attenuation) of the feed coax can be imported in the software to compensate the measured data.
An Application Programming Interface for VB, C++, C#, Labview, etc is available to allow integration of the RMS in a lab setup or an automated factory testing system.
Measurements
Measurements
These are some measurements and graphs measured by the RMS system.
Radiation pattern
Rotation and Linear patterns
Harmonic radiation patterns
Max Gain and Efficiency (TIG) over frequency
Front to Back Ration over frequency
Beam Width over frequency
Wideband Radiation Patterns
This set of Radiation Patterns of a Log Per antenna from 600MHz to 4GHz was measured in one rotation sequence:
Specs
Specifications
|
Frequency |
Range RMS-0440 Range RMS-0460 Range RMS-0640 Range RMS-0660 Accuracy Resolution |
370 to 4000 370 to 6000 600 to 4000 600 to 6000 2 5 |
MHz MHz MHz MHz ppm kHz |
|
Measurement |
Antenna height Measuring distance Antenna polarization Receiver Phase Base Receiver bandwidth Minimum Field Strength Accuracy Repeatability |
100 - 164 80 - 300 Dual polarization antennas Dual channel receiver Phase coherent between 20 75 - 100 ±1.0 0.5 |
cm cm
kHz dBuV/m dB dB |
|
Turn Table |
Height Platform Max Load Rotation speed |
70 / 130 28 x 28 7.5 30 |
cm cm kg sec / rot |
|
Connections |
Power PC Interface |
95 - 240 USB 2.0 |
VAC
|
|
Generator (option) |
Connector Frequency range
Output level |
SMA female 370 - 3000 600 - 3000 -30 - +5 |
MHz MHz dBm |
|
Heavy Duty Turn Table (option) |
Height Platform Max Load |
110 100 x 50 30 |
cm cm kg |
|
Laser Pointer (option) |
Laser class |
Class 2 / < 1mW |
|
|
Software |
Operating System Recommended PC |
Windows XP - Windows 10 Intel I5 system |
|
|
Measurement Characteristics |
Physical Quantities
Amplitude Statistics
Beam Statistics
Graphs
|
Field Strength Effective Isotropic Radiated Antenna Isotropic Gain Antenna Efficiency Min, Max, Average Total Radiated Power (TRP) Total Isotropic Gain (TIG) Front to Back Ratio Beam Center 3dB Beam Width 10dB Beam Width Gain, Phase over Frequency Statistics over Frequency Polar Rotation Patterns Linear Rotation Patterns |
dBuV/m dBm(i) dBi dB, % dBm dBm(i) dBi dB Deg Deg Deg
|
|
Operating Environment |
Temperature |
15 - 35 |
Celcius |
|
Shipping RMS-0640,
RMS-0440,
HDTT
|
Packing Size Packing Weight Packing Size A Packing Weight A Packing Size B Packing Weight B Packing Size Packing Weight |
66 x 61 x 42 21 66 x 61 x 42 15 46 x 46 x 62 8 100 x 22 x 80 10 |
cm kg cm kg cm kg cm kg |
Downloads
Downloads
Where to buy
Where to buy
As we supply to both small businesses and large cooperations we are flexible in our order process.
Distributors
Our distributors can provide you with local support and handle the local customs and shipping procedures. They may also have special offers or pricing.
Webshop
Our webshop offers the convenience of online ordering. For products that are in stock we usually ship in 1 or 2 days.
Quote
Ask us for a quotation and pay on invoice if you prefer to use the official corporate channels.
We accept EUR, USD and GBP.
Video
RMS Videos
These videos show some of the possibilities of the RMS of measuring antennas, fields and harmonics.
