Temwell is the Best of Customized RF Band Pass Filters and Duplexers Expert'' 

Temwell parts all are RoHS components.

Support >Helical Filter Special Feature

Temwell BandPass Helical Filter Special Feature 


Centre Freq. (Fo)  : 45~2600 MHz
Bandwidth (-3BW) : 2~200 MHz
Series : 7H,7S,5W,5R
Pole   : 2~5 pole
Terminator : Pin Type
Impedance : 50[,75[
Temperature : -30∘C ~ +80∘C
Input Power : 0.5~4 Watts
Centre Freq. : Tunable

 User Tunable Range

Special 1: User Tunable Range

@

Series:

Temwell all Helical Filter Products 


Feature
Description:

Temwell Helical Filter accept that users can proceed Center Frequency self tuning. The acceptance tuning range will be +/-1MHz ~ +/-10MHz.  Users can make slightly adjustment by their own, which can save a lot time and cost in developing new project. As Curve, Fo1 can be tuned by users to Fo2 or Fo3 without any spec change, Curve Performance move with the same Specification.

@

Note:
User Tuning range is depend on the practical spec sheet.  
@

 Frequency Customized Range

Special 2: Frequency Customized Range


Series:

Temwell all Helical Filter Products 

Feature Description:

Temwell Frequency Customized Design provide Center Frequency indicating adjustment during 50MHz band range with the same specification as following, such as, BW, IL, Attenuation, Ripple, etc. Temwell  can make adjustment and move the entire curve to any point of customer-required Fo. This is Temwell exclusive technology all over the world. Welcome request any Fo change.

@

Note:
You can find the acceptable customized range in all Temwell Catalog.
Please indicate the Center Frequency by the range. 

 Great Isolation (DC to 2.8G Span)

Special 3: Great Isolation (DC to 2.8G Span)


Series: 

Temwell all Helical Filter Products 

Feature Description:

Temwell Helical Filter can support the great isolation during DC-2.8G up Span. As curve show, there is no any 2nd/ 3rd Harmonics from DC to 2.8G, and also
Temwell Helical Filter perform at least 30 dB
  Attenuation for any special requirement.

@

Note:

The reference specification is as following.
Temwell 4pole series
, Fo=850MHz, B.W.=100MHz,

 I.L.=1.0 dB, Group Delay<10nsec, Span=DC-2.8G, 

Attenuation = Min 30 dB@

 Great Group Delay (<10 nsec)

Special 4: Great Group Delay (<10 nsec)

@

Series: 

Temwell all Helical Filter Products 

Feature Description:

Temwell Helical Filter has great performance in Group Delay. As curve show, there is only 6.0-8.6nsec in Group Delay, which is less than 10 nsec. It is very good performance than any other kind of RF filter in the world.

@

Note:

The reference specification is as following.
Temwell 4pole series
, Fo=850MHz, B.W.=100MHz, 

I.L.=1.0 dB, Group Delay<10nsec, Span=DC-2.8G, 

@

The Expert of the RF Band Pass Filter design& manufacturer, RF Diplexer &Duplexer, RF 50 ohm& 75ohm Filter, RF Tunable Filter


@

Temwell Corporation / Temstron Co., Ltd.

   8F-1,No.51, Sec.1,Min Sheng E. Rd.,Taipei, Taiwan    Tel:886-2-25652500 ( 7 Line )    Fax: 886-2-25515250  /  886-2-25652287    

E-Mail :  sales@temwell.com.tw 

    Copyright © 2009 Temwell Corporation. All rights reserved