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MAURY HGT
High Gamma Tuner
MMLTR05/036
MMLTR05/070
Philippe BOULERNE
6980 LACROIX
Montreal, Province of Quebec, H4E 2V3
CANADA
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Esope Load-Pull Software
Automatic Load-Pull Measurement
Esope is a software application dedicated for automatic load-pull measurements.
Esope is intuitive and easy to use.
The Esope Standard Edition propose instrument GPIB control,
configure devices, load-pull measurements, recording of data and displays.
Optimum fine search, parameter sweep, load-pull and source-pull
are the high level procedures available to make measurements.
Included is the compatibility with MAURY-Microwave HGT tuners, or High Gamma Tuners.
Also included is the compatibility with FOCUS-Microwaves tuners.
CCMT, CCMT-2C, PMT, PHT and COMBO. ISA and PCI control cards from Focus are supported,
also the Athena contol unit can drive the Focus microwaves tuners.
There are specific benefits you get by using ESOPE to control your Focus tuners:
• tuning possibility increased for CCMT even with the use of transformers
• tuning of PMTs as simple as tuning CCMTs - difference is just a wider tuning range
For a demo version of Esope, please contact
ESOPE is so impressive, that it has been expertised by
Bryan Hosein, Ing., Chief Software Engineer at FOCUS Microwave.
The conclusion of this very respectable expert is that ESOPE is compatible at 65% with FOCUS Microwave softwares.
If you want to read more about this very surprising software expertise, the full expertise is available
here
for curiosity purpose.
Tuning Control
ATHENA provides accurate interpolation algorithm in order
to be able to tune anywhere on the Smith chart.
There is no limitation to calibrated points or loss of accuracy when
using impedance transformers.
Tuning to an impedance is as easy as clicking the mouse on the Smith chart.
Automatic measurement pattern can be easily defined.
Esope displays the impedance position of the tuners in real time.
Cursors are displayed on the Smith chart to indicate the impedance position at each frequency.
The impedance path between the actual tuner position and
the desired position is also shown.
This gives ATHENA the unique feature of being able to avoid region of un-stability
where oscillations occur. This is particularly important at high power,
when oscillations can destroy the transistor.
Intermediate positions in the forbidden area are avoided,
making load-pull measurements safer.
Parameter Control
DC Bias Control:
up to 8 bias supplies can be controlled simultaneously,
allowing the biasing of 4 transistors.
RF parameters of the signal source with frequency and output power
are controllable directly from ESOPE.
Esope handles the GPIB commands through a dedicated DLL.
The instrument drivers are based on the National Instrument GPIB Card.
Also most of common instrument are already supported within the DLL,
ATHENA provides the source code of the DLL to give you the facility
to make modifications at your convenience.
DC & RF Measurements
DC and RF measurements are provided for I/V characterization.
Gain, Power, ACPR or IMD measurements are already integrated with full
corrections of losses and de-embedding in DUT reference plane.
Also user defined figure of merit can be calculated directly.
Measurement Procedures
Different types of measurement procedures have been implemented:
parameter sweep, optimum fine search and fundamental & harmonic load-pull.
Data Viewing
Graphic Display for Load-Pull contour in 2D/3D is directly integrated
into Esope. No third packages or external modules to use through many clicks.
Rectangular grid display, Smith chart, polar chart are available, in 2D or 3D.
Based on the powerfull OpenGL graphic library, it gives the best results
on the screen.
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