Model F940H Broadband Transfer Switch

                                                         

  Contact Us     Application Notes for RF Switch

 

 

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.

Model F940H Schematic 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   OPTION (G09) ENVIRONMENTAL RATINGS
      ON Time.................................... 30 nsec max. Operating Temperature
      OFF Time.................................. 30 nsec max.       Range .................................. –54°C to +110°C
    Non-Operating Temperature
Power Handling Capability       Range ................................... –65°C to +125°C
      Without Performance Humidity ....................................  MIL-STD-202F, Method 103B, Cond. B (96 hrs. at 95%)
      Degradation ........................... 500 mW cw or peak  
     Survival Power ........................ 1W average, 75W peak(1 µsec max. pulse width) 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)
Power Supply Requirements  
     +5V ±5%, 60 mA    
     –12V ±5%, 75 mA   Altitude ....................................... MIL-STD-202F, Method 105C, Cond. B (50,000 ft.)
     
Control Characteristics   Temp. Cycling ........................... MIL-STD-202F, Method 107D Cond. A, 5 cycles
    Contorl Input        
     Impedance ............................. Schottky TTL, two unit loads. (A unit load is 2 mA sink current and 50 µA source current.)
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”
  connects 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 FoHS Compliant
G16 RoHS Plus REACH Compliant
 
 
 
    Control logic ....................

Logic “0” (–0.3 to +0.8V) connects J1 to J2 and J3 to J4. Logic “1” (+2.0 to +5.0V) connects J1 to J4 and J2 to J3

 
 
 

 

Wt: 1.1 oz  (31 gm)

Dimensional Tolerances, unless otherwise indicated: . xx Â? .02; xxx + - .005