Switched Filters

** Control EMC Problems Dynamically

** Pin Diode Switches

**Selective Filtering of JTIDS/TACAN/IFF Transmissions

** 250 WATTS Peak Power

** Compact Airborne Assemblies

** TTL or Custom Switching Logic Available

** 2 Microsec Switching Time

RS Microwave produces airborne switchable Notch Filters that permit selective switching of 1030 Mhz Notch filters in and out of a transmit path on a pulse by pulse basis to eliminate interference between TACAN, IFF and JTIDS transmissions.  All contain integral drivers. 
 

Part No. Notch Band (MHz) REJECTION (dB) GROUP DELAY SWITCHING LOGIC PRIME

POWER

Size (Inches)
32401-3  1030±7 35 60 Nanosec TTL -50 VDC 8.24 x 4.45 x 2.00
32401-6 1030±7 45 60 Nanosec 12V/0V +28 VDC 7.25 x 5.50 x 2.18
50703-1 1030±7 35 60 Nanosec TTL +28VDC 6.00 x 2.00 x 1.60

50703-1 uses a ceramic dielectric.


Switched FIlter Response

 


Drop-in Filters

These are typically arrays of “drop-in” filters, pre- and post-selected by PIN diode switch modules. Such switched filter packages may contain TTL compatible drivers or BCD decoders.

 Representative specifications are:

  • Package passband: 2-4 GHz

  • Filter passbands: 1/6 of package passband

  • Channel loss: 5 db, including input/output switching Switching time: 50 ns

  • RF power: 0 dBm

Switched Filter picture

 



Last Updated on Tuesday, 27 December 2011 20:38