Kratos Microwave Israel

Full Line Product Catalog

Model F940H Broadband Transfer Switch

pplication Notes for RF Switches

Model F940H is a high-performance broadband transfer switch that operates over the full instantaneous bandwidth of 0.5 to 18 GHz with ON and OFF times of 30 nsec. Design features include an integrated circuit assembly of PIN diodes mounted in a microstrip transmission line as well as a resistive bias line that contributes to the broadband low-loss performance. The circuit configuration of the Model F940H is shown below.

broadband Transfer Switch Diagram 


The Model F940H is equipped with an integrated driver that is powered by +5 and –12 volt supplies. The proper currents required to switch the ports ON or OFF are provided by the driver, which is controlled by external logic signals.

  • Frequency range: 0.5 to 18 GHz
  • Low VSWR and Insertion loss
  • Isolation: up to 60 dB
  • Small size, light weight
Model F940H Broadband Transfer Switch 

PERFORMANCE CHARACTERISTICS

CHARACTERISTIC               FREQUENCY (GHz)
0.5
to
8.0
8.0
to
12.4
12.4
to
18.0


Min. Isolation (dB)
Max Insertion Loss (dB)
Max. VSWR

60
2.0
1.75
55
2.5
1.75
50
3.5
2.0

Switching Time    
      ON Time..................................................... 30 nsec max.    
      OFF Time.................................................... 30 nsec max.      
Power Handling Capability      
      Without Performance Degradation............ 500 mW cw or peak      
      Survival Power........................................... 1W average, 75W peak (1 µsec max. pulse width)  
 
Power Supply Requirements........................... +5V ±5%, 60 mA
     
  –12V ±5%, 75 mA        
Control Charactristics             
     
 
     Contorl Input Impedance .......................... Schottky TTL, two unit loads. (A unit load is 2 mA sink current and 50 µA source current.)
     Control Logic.............................................. Logic "0" (-0.3 to +0.8V) connects to J1 to J2 and J3 to J4
Logic "1" (+2.0 to +5.0V) connects to J1 to J4 and J2 to J3
   
OPTION (G09) ENVIRONMENTAL RATINGS
Operating TemperatureRange......................... –54°C to +110°C
Non-Operating Temperature Range................ –65°C to +125°C
Humidity.......................................................... MIL-STD-202F, Method 103B, Cond. B (96 hrs. at 95%)
Shock.............................................................. MIL-STD-202F, Method 213B, Cond. B (75G, 6 msec)
Vibration..........................................................
MIL-STD-202F, Method 204D, Cond. B (.06" double amplitude or 15G, whichever is less)
Altitude............................................................
MIL-STD-202F, Method 105C, Cond. B (50,000 ft.)
Temp. Cycling.................................................
MIL-STD-202F, Method 107D Cond. A, 5 cycles
   
AVAILABLE OPTIONS
Option No. Description
7 SMA male RF connectors
9 Inverse control logic; logic “0” connects J1 to J4 and J2 to J3, and logic “1” onnects J1 to J2 and J3 to J4
33 EMI filter solder-type control terminal
48  +5V, –15V operation
64A SMB male control connector
G09 Guaranteed to meet Environmental Ratings
G12 RoHS Compliant
G18  REACH Compliant


DIMENSIONS AND WEIGHT  

 Wt: 1.1 oz (31 gm)
Dimensions in  mm (Inches) Tolerances, unless otherwise indicated: .XX ±.02; .XXX ±.005
 


The information contained in this data sheet is basic marketing information and does not contain any export controlled information.