Procom DPID-900-18-egsm - Manual

DPID 900/18-EGSM
Interdigital Base Station Duplexer for E-GSM
DESCRIPTION
The DPID 900/18-EGSM is an 18-cavity base station duplex filter
designed to operate as a part of the combining systems of cellular E-
GSM base station installations.
The duplexer consists of two interdigital band-pass filters, which are
connected together 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 filter is capable of operating continuously at a power level of 200 W.
The filter parts are mounted together on an aluminium plate with
thickness: 2.5 mm and dimensions: 275 x 400 mm. Total height is 32.5
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 end-treated with a black, 2-component polyurethane
coating.
ORDERING DESIGNATIONS
TYPE PRODUCT NO.
DPID 900/18-EGSM 200000469
SPECIFICATIONS
ELECTRICAL
FREQUENCY RX: 880 - 915 MHz
TX: 925 - 960 MHz
MAX. INPUT POWER 200 W
INSERTION LOSS Both ports: ≤ 1.4 dB
typ.: ≤ 1.2 dB
TX-NOISE SUPPRESSION ON RX-FREQUENCY > 40 dB
RX-ISOLATION ON TX-FREQUENCY > 40 dB
OUT OF BAND REJECTION 960 MHz - 2 GHz: > 70 dB
IMPEDANCE Nom. 50 Ω
SWR ≤ 1.4
MECHANICAL
TEMP. RANGE –30° C → +60° C
CONNECTORS N-female
DIMENSIONS (L x W x H) 275 x 400 x 32.5 mm
WEIGHT Approx. 6 kg
TYPICAL RESPONSE CURVES
PROCOM A/S reserve the right to amend specifications
without prior notice.
14/03/11