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Window Filter
 
 
    Features
 
* CE Approved, Class A RFI Shielding

* SMD, High Stability

* High Rejection

* Low Loss

* Excellent Return Loss

* Waterproof (alternative)

* Patented Housing

* Suitable for MoCA, CATV, Cablenet
  and other communication systems
 
      Also Recommended

DBF : Double Band Pass Filter

TBF : Triple Band Pass Filter

More ... : Filter Series
Introduction

A window filter contains one band-pass and one low-pass and / or one high-pass. Please refer to the graph below.
It is used for filtering out unwanted channels in CATV reception systems or for application in cablenet or other communication systems.

Soontai's window filters have many features (see below).

1. Lowest insertion loss, signal-through-loss reduced to a minimum.

2. Excellent return loss, good impedance match reduces signal loss to
    keep the signal clean (see figure).

3. Dual layer copper tubes provide the best radio frequency interference (RFI) /
    electromagnetic interference (EMI) protection.

We can design other models according to your specifications.

For more filter infomation please see the filter profile technical notes in our Tech Support.
Custom filters or more details on inquires, please refer to Custom Filters.

  Items
Model 1st Pass Band 2nd Pass Band 1st Stop Band 2nd Stop Band
WF-
5-42/103-121
5 - 42 MHz 103 - 121 MHz 50 - 92 MHz 136 - 1000 MHz
WF-
5-42/216-260
5 - 42 MHz 216 - 260 MHz 55 - 190 MHz 290 - 1000 MHz
WF-
5-65/220-260
5 - 65 MHz 220 - 260 MHz 85 - 195 MHz 290 - 1000 MHz
WF-
85-280/750-1000
85 - 280 MHz 750 - 1000 MHz 5 - 65 MHz 310 - 700 MHz
WF-
150-220/680-1000
150 - 220 MHz 680 - 1000 MHz 5 - 125 MHz 250 - 640 MHz
  Electrical Curve ( WF-5-42/103-121 )

Insertion Loss and Rejection
SPAN 200MHz
Fig 1

Insertion Loss  |  Return Loss
SPAN 200MHz
Fig 2
  General Specifications
  Item WF - 5-42/103-121
  Impedance 75 ohm
  Frequency Range 5 - 1000MHz
  1st Pass Band 5 - 42 MHz
  2nd Pass Band 103 - 121 MHz
  1st Reject Band 50 - 92 MHz
  2nd Reject Band 136 - 1000 MHz
  Insertion Loss (5-42MHz) 0.5dB (typ) / 2.0dB (max)
  Insertion Loss (103-121MHz) 2.0dB (typ) / 3.0dB (max)
  Return Loss (5-42MHz / 103-121MHz) 20dB (typ) / 14dB (min)
  Rejection (50-92MHz / 136-1000MHz) 55dB (typ) / 50dB (min)
  Dimensions (incl. M/F connectors) 21(¢) x 73(L) mm
  Net Weight 52g
 Specifications may be change according to customer's requirements.

 

 
 

SOONTAI  TECH  CO.,  LTD.
No.43, Huangong Rd., Yongkang Dist., Tainan City 710, Taiwan
TEL: 886-6-2016969   FAX: 886-6-2013939   E-mail: soontai@soontai.com