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Coaxial–Waveguide Adapters

Coaxial–Waveguide Adapters

Coaxial–Waveguide Adapter Catalogue 
Single Polarized Hybrid Couplers for 2 Outdoor Radio Units
Passive Component Ordering


Coaxial–waveguide adapters are two-port microwave devices that enable seamless transition between coaxial cables and rectangular waveguides. They provide low return loss and insertion loss, therefore, they are the perfect solution for mixed coaxial–waveguide applications.

R220–K Adapter
(WGA 176267-UBR220(A)-K)

R320–K Adapter
(WGA 264400 UBR320(A)-K)

R84-N Adapter
(WGA 7185-UDR84(A)-N)


For most waveguide sizes, adapters are available in two versions: one that covers the full waveguide frequency band, and another that is fine-tuned for the typical terrestrial microwave frequency bands the waveguide supports. Available types are listed in the following table (one may click on the required Waveguide Type to find more information about the adapters):

Full Waveguide Band Typical TMW Bands
R48    + (3.900–6.000 GHz)    + (4 GHz)
R70    + (5.400–8.200 GHz)    + (6L–6U GHz)
R84    + (6.600–10.000 GHz)    + (7–8 GHz)
R100    + (8.200–12.500 GHz)    + (10–11 GHz)
R120    + (9.800–15.000 GHz)    + (13 GHz)
R140    + (11.900–18.000 GHz)    + (13–15 GHz)
R220    + (17.600–26.700 GHz)    + (18–23 GHz)
R260    + (21.700–33.000 GHz)    + (26–28 GHz)
R320    + (26.400–40.000 GHz)    + (28, 32, 38 GHz)
R400      + (42 GHz)
R500      + (42 GHz)


Ordering Information

Coaxial–Waveguide Adapter
Operational frequency in GHz multiplied by 10.
If the adapter is wideband, or the operational frequency range is not commonly used, the minimum and the maximum operational frequency is indicated here.
Standard Waveguide Flange (according to IEC 60154-2).
Flange material (aluminium or brass) has to be specified.
Any other interface is available upon request (e.g. CPR Flange).
N (female) connector
SMA (female) connector
K (female) connector
2.4 mm (female) connector
Any other connector type is available upon request.

Ordering Possibilities

Every order is to be confirmed by GRANTE.

e-mail: grante@grante.hu

fax: +36 33 435 265

post: H–2501 Esztergom, POB. 84., Hungary

Example 1

WGA 7185 UDR84(A) N

WGA Coaxial–Waveguide Adapter
7185 Operating Frequency: 7.125–8.500 GHz
UDR84(A) Aluminium UDR84 flange
N N (female) connector

Example 2

WGA 7185 CPR112G(B) N

WGA Coaxial–Waveguide Adapter
7185 Operating Frequency: 7.125–8.500 GHz
CPR112G(B) Brass CPR112G flange
N N (female) connector

Example 3

WGA 380 UBR320(A) K

WGA Coaxial–Waveguide Adapter
380 Operating Frequency: 38 GHz band (37.000–39.500 GHz)
UBR320(A) Aluminium UBR320 flange
K K (female) connector

For more information about Grid Antennas please contact us via e-mail.

Product Information