HP 86205A & 86207A
50Ω & 75Ω RF Bridges
Technical Data
300 kHz to 6 GHz (50Ω)
300 kHz to 3 GHz (75Ω)
The HP 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
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.
• Wide frequency range
The bridges have an exceptionally
wide RF frequency range: 300 kHz
to 6 GHz for the 50Ω HP 86205A
and 300 kHz to 3 GHz for the 75Ω
HP 86207A. They are ideal accessories when used with the HP 8753
family of RF vector network
analyzers.
• Low insertion loss
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.
• Flat coupling factor
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.
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and describes products or services now available through Agilent. It may also refer to products/services no longer supported by Agilent. We
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HP 86205A
Frequency range 300 kHz to 6 GHz
Impedance 50 Ohms (nominal)
Directivity (25° C, ±5°) 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
Port match 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)
Supplemental characteristics
Insertion loss 1.5 dB, +0.1 dB/GHz
Insertion loss deviation ±0.2 dB
Coupling factor (<3 GHz) 16.0 dB, +0.15 dB/GHz
(>3 GHz) 16.5 dB, –0.20 dB/GHz
Coupling factor deviation (<3 GHz) ±0.2 dB, (>3 GHz) ±0.4 dB
Maximum input power 25 dBm
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)
Ordering information
Model
HP 86205A RF Bridge (50Ω)
HP 86207A RF Bridge (75Ω)
HP 86207A
Frequency range 300 kHz to 3 GHz
Impedance 75 Ohms (nominal)
Directivity (25° C, ±5°) 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
Port match 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)
For more information, call your local
HP sales office listed in your telephone directory.
Data Subject to Change
Copyright © 1991
Hewlett-Packard Company
Printed in U.S.A. 12/91
5091-3117E
Specifications
–10
dB
–60
–20
–30
–40
–50
0.3 MHz 10 MHz 100 MHz 1 GHz 6 GHz
Frequency
Directivity
–10
dB
–60
–20
–30
–40
–50
0.3 MHz 1 MHz 10 MHz 1 GHz 3 GHz
Frequency
100 MHz
Directivity
–1.1
dB
–2.5
–1.3
–1.5
–1.7
–1.9
0.3 MHz 3 GHz 6 GHz
Frequency
–2.1
–2.3
Insertion Loss
–15.6
dB
–17.0
–15.8
–16.0
–16.2
–16.4
0.3 MHz 3 GHz 6 GHz
Frequency
–16.6
–16.8
Coupling Factor
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.”
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