Weinschel 1870A Data Sheet

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Revision Date: 12/15/04

Power Splitters & Dividers

NOTE: All dimensions are given in mm (inches) and are

maximum, unless otherwise specified.

Frequency (GHz) Maximum SWR
dc - 2 1.05

2 - 4 1.07
4 - 8 1.10
8 - 18 1.15

* When used in a leveling or ratio system.

Model 1870A dc to 18.0 GHz
Broadband Resistive Power Splitter 1 Watt
(Matching)

Type N Connectors

Features

These resistive power splitters are intended for RF and
wireless applications in which one of the two outputs is
included in a leveling loop or is used as a reference in a
ratio system, for the purpose of providing an output signal
whose source impedance is essentially matched to 50Ω.
Some examples are:

o A dual channel insertion loss measuring system

(ratio).

o A parallel IF substitution insertion loss measuring

system (ratio or ALC loop).

o A precision power source (ratio or ALC loop).

Specifications

NOMINAL IMPEDANCE: 50 Ω
FREQUENCY RANGE: dc to 18.0 GHz
INSERTION LOSS: 6 dB nominal, 7.5 dB maximum

(Between Input and either output).

MAXIMUM INPUT POWER: 1 watt average, 1 kilowatt
peak (Input connector only)

PHASE TRACKING: +2° nominal between output ports
POWER COEFFICIENT: < 0.005 dB/dB/watt
TEMPERATURE COEFFICIENT: <0.0004 dB/dB/°C
TEMPERATURE RANGE: -55°C to +85°C
CONSTRUCTION: Nickel plated brass body; stainless

steel connectors; gold plated beryllium copper contacts.

EQUIVALENT OUTPUT SWR (Port 2 & 3):

OUTPUT TRACKING (Between Ports):

Frequency (GHz) Tracking

(maximum dB)

dc - 8 0.15
8 -18 0.20

TEST DATA: Insertion Loss, SWR, and Tracking measure­ments performed across the frequency band. Test data
available at additional cost.

CONNECTORS: Type N female connectors per MIL-STD­348 interface dimensions - mate nondestructively with
MIL-C-39012 connectors.

WEIGHT: Net 170 g (6 oz)
PHYSICAL DIMENSIONS:

MAXIMUM INPUT SWR:

Frequency (GHz) Maximum SWR
dc - 18 1.30

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