Weinschel
5305 Spectrum Drive, Frederick, MD 21703-7362 !TEL: 301-846-9222, 800-638-2048 !Fax: 301-846-9116
web: www.weinschel.com !email: sales@weinschel.com
CORPORATION
196
Models 1537RA, 1538RA, & 1540RA 0.5 to 4.0 GHz
Directional Couplers
SMA Female Connectors
This series of directional couplers feature high directivity
and low SWR and are conservatively rated to ensure the
most reliable service and performance under severe envi-
ronmental conditions. These designs are ideal for lab
applications, internal leveling, ECM Systems, communica-
tion satelites, RF and microwave test equipment, and
wireless applications. Other features include:
oSelection of Coupling Factors: 6, 10, 20, & 30 dB
oFemale SMA Connectors: Rugged 4 hole connector
construction insures mechanical superiority
oTemperature Range: -55°C to +85°C
oOctive and Multi-octive Models
Specifications
Maximum
Model Frequency Coupling Frequency Minimum Maximum Insertion Loss Maximum Maximum Outline
Number Range (dB)* Flatness* Directivity SWR above Coupling Peak** Average** (See Below)
(GHz) (dB) (dB) Loss (dB) Power (kW) Power (W)
1537RA-10 2.0-4.0 10+1.20 +0.75 20 1.25 0.25 3 40 2
1537RA-20 2.0-4.0 20+1.20 +0.75 20 1.25 0.25 3 40 2
1538RA-6 0.5-2.0 6+1.20 +1.0 18 1.25 0.30 3 50 1
1538RA-10 0.5-2.0 10+1.25 +1.00 20 1.25 0.25 3 50 1
1538RA-20 0.5-2.0 20+1.25 +1.00 20 1.25 0.25 3 50 1
1538RA-30 0.5-2.0 30+1.25 +1.00 18 1.25 0.25 3 50 1
1540RA-20 1.0-4.0 20+1.25 +0.75 20 1.25 0.50 3 50 3
* Coupling includes frequency flatness. Coupling measurement is referenced to the Input Port.
** Peak and average power handling capability only apply if the main line is terminated in a 1.25 maximum SWR for 10 dB models
and 1.75 for 20 and 30 dB models.
Physical Dimensions
NOTE: All dimensions are given in mm (inches) and are maximum, unless otherwise specified.
NEW
8/14/00
