RFS44 — 100 kHz to 44 GHz 4-Port RF Switch

The RFS44, a SP4T absorptive solid-state switch, enables RF switching up to 44 GHz across four ports, supporting LF to Ka band, and facilitates pseudo-doppler direction finding with fast switch speed.


The RFS44 is a single pole four throw (SP4T) absorptive solid-state switch using silicon-on-insulator (SOI) technology providing RF switching across four ports at up to 44 GHz. Switch from LF all the way through the Ka band and utilize this versatile tool in psuedo-doppler direction finding applications. With blazing fast switch speed, 3 ns rise/fall times, and direct access from Spike™, the RFS44 enables multi-band sweeping and direction finding to the SM435 product line!

Signal Hound’s RFS44 high-speed antenna switch applies our innovative approach to high-performance test and measurement equipment to utility switching control. Utilizing advanced RF architecture design, in unison with high quality components, the RFS44 gives users vital features and enables concise data acquisition when switching across varied frequencies in diverse RF environments.


RFS44MINIMUMTYPICALMAXIMUMUNITS
Frequency Range0.0001 44GHz
Impedance
 

50

 

Ohms

VSWR RFin <2.0:1  
VSWR RFC <3.0:1  
Isolation >28 dB
Input Power >100 MHz  20dBm
Input Power <100 MHz  10dBm
Rise/Fall Times (10%/90%) 3 ns
DB15 on/off 20 ns
UART on/off 20 us
USB on/off 20 ms
ESD (HBM)375  V
VIN RF1 - RF 4-16 16V
VIN, RFC-0.2 0.2V
Operating Temperature• Standard -40°F to 185°F (-40°C to +85°C)
Size and Weight• 4.09" x 4.17" x 1.32” (104mm x 106mm x 34mm)  • 8.9 oz. (0.25 kg)
Power Consumption• < 0.2W
Connectivity• Signal Hound Direct Connect to BB60D, SM200/435, or SP145
• Control over DB15, UART, or USB
• Powered over USB 2.0 or DB15