Short description

DRA-Ka045 is Double Reflector Antenna (Cassegrain antenna).


► It is designed for K-band & Ka-band: 18-40 GHz

► Can operate with linear and circular polarizations (by order)

► Beam (H): 2°; Beam (V): 2°

► Cross-polarization isolation: 25 dB

► Gain: 39 dBi

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DRA-Ka045 is K-band & Ka-band double reflector antenna (Cassegrain antenna) designed for transmitting radio relay stations (RRS), MVDS / MMDS broadcasting systems. Antenna is performed as a single block with flange for transmitter or receiver connecting. Using one or several radio relay links allows to transfer the broadcast signal from/to remote TV (cable) operators or from/to remote head-end without wires. Thus, the current transmission method is especially useful in difficult terrain in the service area where cable laying is impossible.

 Short instruction about antenna assembling

Key features:

  • High gain: 39 dBi
  • Full K-band & Ka-band covering (both by order)
  • Beam(H): 2°; Beam (V): 2°
  • Cross-polarization isolation of 25 dB

Main functions:

  • Transmission or receiving of both (by order) K-band & Ka-band signals
  • Applied as a part of broadcasting head-end station, repeater, interactive microwave system and used at subscriber’s receiving side
Frequency range, GHz 25-40 (18-40 by order)
Gain, dBi 39
VSWR 1.5
Polarization Linear or circular
Cross-polarization isolation, dB 25
Side-lobe level relative to the main beam, dB  -12
Input power, W 20
Waveguide WR-28 or С-320
Temperature range, °C -50 to +80
Humidity 100% where 25°C
Size, mm 480x480x190
Weight, kg 5.4
Mount Mounting on a vertical pipe with a diameter of 50-100 mm
Casing material Canvas coverage


Taking into consideration that we (UMT LLC) are developer and system integrator, also do not stop on our technical growth and improvement, know that view of all our devices and equipment including their technical parameters may be different from pictures presented on website and parameters listed on each device webpage. 
Note! All details customer has to confirm in advance during ordering and before payment. Those parameters that were not specified and / or were not agreed while ordering will be implemented as basic at the discretion of the manufacturer. Each our customer has 1.5 year warranty and 7 year aftersales support for whole range of our products.