Specifications

21
HP 44476A
• Switching signals from DC to 18 GHz
• Triple 1-to-2 microwave multiplexers
Description
The HP 44476A is a microwave switch module. There
are three independent SPDT 50 Ω coaxial relays with
excellent electrical performance from DC to 18 GHz.
For general purpose microwave switching applications,
the module can be used to switch separate signal
sources for a multi-band receiver/transmitter testing
application. The 3-mm SMA connectors on the module
edge are for ease of wiring.
Specifications
Input Characteristics
Frequency Range: DC to 18 GHz
Characteristic Impedance: 50 Ω
Input Power Rating: 1 W average
(Also less than ± 7 V DC) 100 W peak
Repeatability (after 10
6
operation): 0.03 dB
Connector: SMA
AC Isolation / Performance
Isolation: DC-18GHz >90 dB
Insertion Loss: DC-2 GHz <0.25 dB
DC-18GHz <0.50 dB
VSWR (3 mm SMA): DC-2GHz <1.15
DC-12.4GHz <1.25
DC-18.0GHz <1.40
HP 44476B
• Supporting varieties of microwave
coaxial relays
• Two sets of mounting holes for coaxial relays
Description
The HP 44476B is a microwave relay driver module that
brings multi-port 50/75 Ω coaxial switching flexibility to
your test system. The HP 44476B panel has two sets of
mounting panels, so any two HP 876XX coaxial switches
can be mounted on this module. The HP coaxial switches
come in three-, four-, and five-port configurations. This
flexibility allows you to use the different switches for a
variety of applications, constructing transfer switches,
switch matrices, etc. Using the HP 876xx in conjunction
with the HP 44476B will allow you to extend your
automated three-port switching to 26.5 GHz. Coaxial
relays must be ordered separately. The HP coaxial
switches that can be used are listed below. The Option
011 designates the switches for a coil voltage of 5 V DC.
HP Coaxial Switch Port Frequency
HP 8762A/Option 011 3 DC to 4 GHz
HP 8762B/Option 011 3 DC to 18 GHz
HP 8762C/Option 011 3 DC to 26.5 GHz
HP 8762F/Option 011 3 DC to 4 GHz
HP 8763B/Option 011 4 DC to 18 GHz
HP 8763C/Option 011 4 DC to 26.5 GHz
HP 8764B/Option 011 5 DC to 18 GHz
HP 8764C/Option 011 5 DC to 26.5 GHz
For details of HP 876XX specification, please refer to
HP p/n 5964-9527E.
Microwave Multiplexer Module
Microwave Relay Driver Module