|
|
|
 RF Filters: Duplexers / Duplexer Design
RF filters / duplexers are reliable components
for different customer specified applications
Customized duplexer design available on demand
 |  | As main supplier to distinguished producers and network operators, PROCOM have for many years been an international concept for reliable solutions.
Shown below are examples of PROCOM RF filters / duplexers.
More products are available in the PDF Product Catalogue.
| | SEE ALSO: |
| |
|
| | |
| |
|
Customized duplexer design is available on demand, please contact us for further information.
DPF 2/6… 6-Cavity Duplexer for the 160 MHz Band
The DPF 2/6… is a 6-cavity duplex filter for duplex radiotelephones.
This duplexer is delivered in a low band version type DPF 2/6 L, tunable within 138-156 MHz and a high band version type DPF 2/6 H, tunable within 152-175 MHz. These models are again delivered in 3 submodels, each dedicated to work with a certain duplex spacing.
The DPF 2/6… duplexers are primarily intended for equipment, where the TX and RX operate on single frequencies, but they can also, however with slightly reduced data, be used where the TX and RX operate on several channels, i.e. within a certain port bandwidth. In the last case, factory tuning is recommended.
The RF filter has very small physical dimensions owing to the use of high-Q, temperature compensated helical resonators.
The housing is made of extruded aluminium, the chassis of passivated steel, and teflon insulation has been applied in the rigid coaxial cables and in the connectors. The filter is black vinyl coated to prevent corrosion.
Download PDF file for further details and specifications about the DPF 2/6... cavity duplexers.
 Please notice, more products are available in the PDF Product Catalogue.
MPX 2/6… 6-Resonator Mini-Duplexer for the 160 MHz Band
The MPX 2/6… is a 6-resonator miniaturized duplex filter for duplex radiotelephones. This compact “miniplexer” meets the demand for a modern space saving, high performance filter type.
Model MPX 2/6 L can be tuned within the band 138-156 MHz and model MPX 2/6 H within the band 152-175 MHz, both with duplex spacing between 4 and 15 MHz.
The MPX 2/6… duplexers are primarily intended for equipment, where the TX and RX operate on single frequencies, but it can also, however with slightly reduced data, be used where the TX and RX operate on several channels, i.e. within a certain port bandwidth. In the last case, factory tuning is recommended.
The miniaturization of the RF filter has been realized by using special high-Q, temperature compensated helical resonators with discrete-component interconnections.
The housing is made of extruded aluminium, and the connectors are provided with teflon insulation. The filter is black vinyl coated to prevent corrosion.
Download PDF file for further details and specifications about the MPX 2/6... duplexers.
Please notice, more products are available in the PDF Product Catalogue.
DPID 1800/18 Interdigital Base Station Duplexer
The DPID 1800/18 is an 18-resonator base station duplex filter designed to operate as a part of the combining systems on base station installations.
The duplexer consists of two interdigital band-pass filters, which are interconnected by a cross-over network.
The interdigital principles ensure that ripple and insertion loss figures are kept very low over the wide port widths, and that steep slopes immediately beside the pass ranges and heavy attenuation outside the pass ranges are realized.
The RF filter is capable of operating continuously at a power level of 200 watt.
The RF filter parts are mounted on an aluminium plate with thickness: 4 mm and dimensions: 266 x 483 mm. Total height is 36 mm. This assembly fits nicely into a 19” rack system.
Construction and choice of materials have been carried out to ensure that electrical characteristics are maintained over a long life-span despite the influence of environmental factors such as corrosion, temperature, humidity, shock and vibration. The assembly is finished with a black, 2-component polyurethane coating.
Download PDF file for further details and specifications about the DPID 1800/18 duplexer.
Please notice, more RF filter / duplexer products are available in the PDF Product Catalogue.
|
| |
|