FOCUS MICROWAVES GROUP

RF Accessories

For Complete Measurement Solutions

V05/18FOCUS MICROWAVESP U L S E DI VRF Accessories
In an effort to provide complete measurement solutions
to our customers, Focus Microwaves has developed,
over time, customized accessories, which will make surea load pull or noise test system will operate as expected.
Tuner based measurements differ fundamentally fromother microwave testing, because the devices operate
under non-50 Ohm environment.
VNA calibrations are therefore extremely important and,to our experience, TRL (Thru-Reflect-Line) is the best
method to use, at least above 3GHz. We have therefore
developed a family of TRL calibration kits.
Since load pull is a lengthy test procedure, on the samedevice, we opted for a manual, instead of an automatic
probe station (LPPS).

Load Pull Probe Station Solutions (LPPS)
Conventional wafer probe stations are not designed tosupport large and heavy (up to 50kg) mechanical tuners.
Focus has, therefore developed manual probe stations,designed to support tuners. A number of customized
designs are available under the brand name LPPS (LoadPull Probe Station). The stations comprise an optical
table, operation platen, microscope and video-feed
and heavy duty customized high precision 3 axis tuner
positioners.
LPPS can be customized for all Focus tuners and its
components can be adapted to existing commercial
probe stations to allow tuner operations. Balancing kits,external or integrated in the tuners, allow for extreme
mechanical stability during tuner wafer probing operation, even if the tuners are connected with the wafer
probes using low loss rigid airlines (bend-lines) insteadof lossy flexible cables.

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www.focus-microwaves.com

Power Test JigLPPS

VNA Calkits
Tuner calibration is a difficult task for Network Analyzers.
Due to high reflection and low loss, tuner S-parameter measurements represent a challenge for VNA’s, because of error
term determination and coupler directivity. Long experiencehas taught us not to rely on other calibration techniques
than TRL (Thru-Reflect-Line). The popular SOLT technique
is conditionally useable. The much convenient ECal method has provided questionable and inconsistent results. Ourcustomers are advised to be very careful with VNA calibrations, because the whole measured data depends on that.
Because of this, and to save our customers time and doubt,
Focus has developed and offers a set of precision and reliable TRL calibration kits from 0.03 to 110 GHz with thefollowing connector types: 7/16, N, APC-7, 3.5mm, 2.9mm,2.4mm, 1.9mm, WR-15, WR-10. Our calibration kits are compatible with all commercial network analyzers.

Bias-Tees
Auriga Bias Tees balance impressive RF performance withheavy-duty power handling across multiple frequency
bands ranging from 100 MHz to 40 GHz. They are designed
for rigorous usage without sacrificing RF performance. Only
the highest-quality materials are used to minimize signal
loss and enable efficient heat removal.
The highest-power bias tees include a fast-acting fuse toprotect DUTs against current spikes. A DC sense port is provided for accurately measuring the incident DC voltage.
Bias tees requiring external heat sinking include pre-tappedholes for easy mounting.

Transistor Fixtures
Focus’ modular microstrip, high power and ultra low loss
coaxial fixtures are designed mainly for load pull testing ofpackaged transistors. All Focus test fixtures come with TRL
calibration standards and support most transistor packages
sized from less than 0.1” and up to 1” wide.
Special designs include:- Decade wide (Fmax:Fmin ~10:1) Klopfenstein transformers- Water and Air cooling and on-substrate bias networks.
- Microstrip fixtures (PTJ-x*; Packaged Test Jig) are available
with 50Ω lines or built-in λ/4 or taper (Klopfenstein) transformers, harmonic traps and DC bias networks- Minimum Loss coaxial Test Fixtures (MLTF-x*) (insertionloss < 0.03 dB at 2 GHz) are available with 7mm, N and 7/16
connectors in frequency ranges up to 18 GHz. (US patent
6,464,513).
Both fixture types can be fitted with water cooling for RF
power up to several hundred Watts.
(*) ‘-x’ indicates the frequency range: DC-4GHz, -6GHz,-12GHz and -18GHz.

MLTF

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Accessories Specifications
VNA TRL Calkits

Mesuro Phase Reference

Model

Connector

Description

Model

Frequency

Connector

GPC-7/16-TRL-CV
GPC-7-TRL-CV
GPC-N-TRL-CV
GPC-3.5-TRL-CV
GPC-2.9-TRL-CV
GPC-2.4-TRL-CV
GPC-1.85-V-TRL-CV
GPC-WR22-TRL-CV
GPC-WR15-TRL-CV
GPC-WR10-TRL-CV

7/167mm
N Type
3.5 mm
2.9 mm (K®)
2.4 mm1.85 mm (V)
WR-22
WR-15
WR-10

up to 6.5 GHz
up to 18 GHz
up to 18 GHz
0.1 to 35 GHz
0.1 to 40 GHz
0.1 to 50 GHz
0.1 to 65 GHz
33 - 50 GHz
50 - 75 GHz
75 - 110 GHz

PR67
PR50
PR30
PR18
PR8

100 MHz - 67 GHz
100 MHz - 50 GHz
100 MHz - 30 GHz
100 MHz - 18 GHz
100 MHz - 8 GHz

1.85 mm
2.4 mm
2.5 mm
2.5 mm
2.5 mmTest Fixtures
Modular RF Power Transistor Test Fixture
ModelConnectorDescription

PTJ-S
PTJ-C
PTJ-X
PTJ-KuPTJ-KaPTJ-Klop

7/16, N, 7mm, SMA, (2.9,3.5 adapter option)
7/16, N, 7mm, SMA, (2.9,3.5 adapter option)
7/16, N, 7mm, SMA, (2.9,3.5 adapter option)
7/16, N, 7mm, SMA, (2.9,3.5 adapter option)
7/16, N, 7mm, SMA, (2.9,3.5 adapter option)
7/16, N, 7mm, SMA, (2.9,3.5 adapter option)

DC-4 GHz, TRL Calibration standards
DC-6 GHz, TRL Calibration standards
DC-12 GHz, TRL Calibration standards
DC-18 GHz, TRL Calibration standards
DC-26 GHz, TRL Calibration standards
Klopfenstein, custom design

Add-On Options
ModelDescription

TRINW
WCP
XDEL
XTRIN
XTRFS
XTRFS-CUSXTRCLP

Transistor Insert with water cooling option
Water cooling pump for water cooling option
Extra delay line, standard
Extra Transistor Insert, Standard
Extra Transistor Substrate, Custom
Extra Transformer Substrate, Custom
Extra Transistor Clamp, flush mountBias-Tees

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Model

Frequency

Max Current (A)RF Power (W)Voltage Rating (V)Typ. Ins. Loss (dB)

Housing Type

Connector Type

BT0110-50
BT0118-10
BT0480-50
BT0730-150
BT0780-100
BT0780-150
BT0710-50
BT0845-50
BT1010-50
BT1018-50
BT1026-1
BT1026-10
BT1070-100
BT1080-50
BT1040-12
BT1510-50
BT2018-50
BT2040-50
BT2080-100
BT2080-50
BT6018-50
BT8012-50
BT8018-10

0.1 - 10 GHz
0.1 - 18 GHz
0.4 - 8 GHz
0.7 - 3 GHz
0.7 - 8 GHz
0.7 - 8 GHz
0.7 - 10 GHz
0.8 - 4.5 GHz
1- 10 GHz1 - 18 GHz
1 - 26.5 GHz
1- 26.5 GHz
1- 7 GHz
1 - 8 GHz1 - 40 GHz
1.5 - 10 GHz
2 -18 GHz2 - 4 GHz2 - 8 GHz2 - 8 GHz
6 -18 GHz
8 - 12 GHz
8 - 18 GHz

3223333411221042225104253501050150100150505050501101005012505050100505050101005050200502001005050501505050505010050501005050100
50

1.8
1.5
1.2
1.5
1.5
1.5
1.8
12.5
22.2
2
1.8
2
2.5
2.5
1.8
2.1
1.7
1.4
1.5
2
1.5

B
B
B
D
D
D
B
B
D
B
B
B
D
B
B
D
B
B
D
B
B
B
B

2.92 mm (m-f)
2.92 mm (m-f)
2.92 mm (m-f)
Type N (m-f)
Type N (m-f)
Type N (m-f)
2.92 mm (m-f)
2.92 mm (m-f)
Type N (m-f)
2.92 mm (m-f)
2.92 mm (m-f)
2.92 mm (m-f)
Type N (m-f)
2.92 mm (m-f)
2.92 mm (m-f)
Type N (m-f)
2.92 mm (m-f)
2.92 mm (m-f)
Type N (m-f)
2.92 mm (m-f)
2.92 mm (m-f)
2.92 mm (m-f)
2.92 mm (m-f)

info@focus-micorwaves.com+1 514 684 4554

www.focus-microwaves.com