TFS35A_ Просмотр технического описания (PDF) - Vectron International

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TFS35A_

SAW filters for space and military applications

Vectron International 

Requirements

for SAW filters

for space

and military

applications:

Two reflectors and a transducer

form an one port resonator. The

unsage of resonant structure

allows low loss operation.

By mechanical an electrical

coupling a sharp filter

characteristic with superior

stop band rejection.

High reliability /

including additional

production steps

Support provided

for low quantities

Final test at different

temperatures

Non-standard

specifications

SAW filters for space and military applications:

VI-Telefilter has installed an additional production line to support low quantities and extra quality test to guarantee

high reliability products.

All plants are certified according to the TS16949 standard. Our production performs final tests at high and low

temperatures.

All SAW design principles are available to handle non-standard filter requirements. We are experienced in designing

and manufacturing IF and RF filters and may deliver filter sets, cascaded filters, and sets of cascaded filters.

Design capabilities:

There is no special SAW-design

principle used for space and military

applications, however experience in

all common SAW design principles

is available.

A technical example is a TCRF-De-

sign (Transversely Coupled Resona-

tor Filter) – for a description see

drawing above.

It shows that two oneport resonators

build a waveguide that can guide a

symmetrical mode and an unsym-

metrical one. The bandwidth of the

filter is determined by the difference

in frequencies of these modes.

Higher rejection and sharpness may

be achieved by cascading such

waveguides.

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