AGILENT 86205A

Agilent 86205A & 86207A
50 Ω & 75 Ω RF Bridges
Technical Data
300 kHz to 6 GHz (50 Ω)
300 kHz to 3 GHz (75 Ω)
The 86205A/86207A high directivity RF bridges offer
unparalleled performance in a variety of general purpose
applications. They are ideal for accurate reflection
measurements and signal-leveling applications. They
combine the directivity and broad-band frequency range
of directional bridges and the low insertion loss and flat
coupling factor of directional couplers.
40 dB directivity
Low insertion loss
Excellent directivity allows you to measure high return loss
devices and good port match lets you measure low return
loss devices. This is especially important when making
reflection measurements with scalar network analyzers,
vector network analyzers and spectrum analyzers.
These bridges offer low insertion loss, (nominally 1.5 dB),
which is significantly less than the typical 6 to 8 dB
normally associated with RF bridges. Low insertion loss
means more power to the device under test. This is
required for the measurement of high-power solid state
amplifiers and traveling wave tube amplifiers.
Wide frequency range
Flat coupling factor
The bridges have an exceptionally wide RF frequency
range: 300 kHz to 6 GHz for the 50 Ω 86205A and 300 kHz
to 3 GHz for the 75 Ω 86207A. They are ideal accessories
when used with the 8753 family of RF vector network
analyzers.
The frequency response of the coupled arm for these
bridges is very flat, within ±0.2 dB of the nominal value of
16 dB. This is important in applications such as external
power leveling where a power meter or diode detector is
used to remotely level the output power from an RF source
and when measuring power level dependent devices such
as the LO input to a mixer or the RF input to an amplifier
during compression testing.
Specifications
86207A
Specifications describe the instrument’s warranted
performance over the temperature range of 0 °C to 55 °C.
Supplemental characteristics are intended to provide
information useful in applying the instrument by giving
supplemental, but not warranted performance parameters.
These are denoted as “typical.”
Frequency range
Impedance
Directivity (25 °C, ±5 °C)
Directivity
–10
86205A
–20
300 kHz to 6 GHz
50 Ohms (nominal)
30 dB, 0.3 MHz to 5 MHz
40 dB, 5 MHz to 2 GHz
30 dB, 2 GHz to 3 GHz
(typical) 20 dB, 3 GHz to 5 GHz
(typical) 16 dB, 5 GHz to 6 GHz
–30
dB
Frequency range
Impedance
Directivity (25 °C, ±5 °C)
–40
–50
–60
0.3 MHz 1 MHz
Port match
–10
Directivity
–20
–30
dB
–1.1
–1.3
–50
–1.5
Port match
dB
–40
–60
0.3 MHz 10 MHz
300 kHz to 3 GHz
75 Ohms (nominal)
30 dB, 0.3 MHz to 5 MHz
40 dB, 5 MHz to 1.3 GHz
35 dB, 1.3 GHz to 2 GHz
(typical) 30 dB, 2 GHz to 3 GHz
100 MHz
Frequency
1 GHz
6 GHz
23 dB, 0.3 MHz to 2.0 GHz (1.15 SWR)
20 dB, 2.0 GHz to 3 GHz (1.22 SWR)
(typical) 18 dB, 3 GHz to 5 GHz (1.29 SWR)
(typical) 16 dB, 5 GHz to 6 GHz (1.38 SWR)
10 MHz
100 MHz
Frequency
1 GHz 3 GHz
20 dB, 0.3 GHz to 1.3 GHz (1.22 SWR)
(typical) 18 dB, 1.3 GHz to 2 GHz (1.29 SWR)
(typical) 18 dB, 2 GHz to 3 GHz (1.29 SWR)
Insertion Loss
–1.7
–1.9
–2.1
–2.3
–2.5
0.3 MHz
–15.6
3 GHz
Frequency
6 GHz
Coupling Factor
–15.8
Insertion loss
Insertion loss deviation
Coupling factor
1.5 dB, +0.1 dB/GHz
±0.2 dB
(< 3 GHz) 16.0 dB, +0.15 dB/GHz
(> 3 GHz) 16.5 dB, –0.20 dB/GHz
(< 3 GHz) ±0.2 dB, (> 3 GHz) ±0.4 dB
25 dBm
Coupling factor deviation
Maximum input power
Maximum DC, volts
(through arm)
30 VDC
Maximum DC, volts
(coupled arm)
0 VDC
Maximum DC, amps
(through arm)
1 amp
Below 1 MHz directivity and port match will be slightly degraded
above 200 ma bias current.
Connectors
Type-N (female)
Dimensions
160 W x 93 H x 23 mm D
(6.3 W x 3.7 H x 1 in D)
Weight
Net 0.57 kg (1.3 lbs),
shipping 1.80 kg (4.0 lbs)
Models
86205A RF bridge (50 Ω)
86207A RF bridge (75 Ω)
–16.0
–16.2
dB
Supplemental characteristics
–16.4
–16.6
–16.8
–17.0
0.3 MHz
3 GHz
Frequency
6 GHz
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Product specifications and descriptions in this document
subject to change without notice.
© Agilent Technologies, Inc. 2008, 2005, 2001
Printed in USA, September 3, 2008
5091-3117E