Cassegrain Antennas 26.5 to 170 GHz

ELVA-1 offers for sale parabolic antennas from 26.5 to 170 GHz for telecom projects and the OEM market.

ELVA-1 offers Cassegrainian parabolic antennas 26 to 170 GHz ELVA-1 has developed low-cost high-performance millimeter wave Cassegrain antennas to meet the needs of the broadband market. These antennas are dual reflector Cassegrain type ECA – XX series. Antennas of ECA – XX series are available for frequencies from 26.5 to 140 GHz with reflector diameters ranging from 100 to 900 mm.

The gain is up to 53 dBi depending on the frequency. The main reflector has a highly accurate surface and is made of aluminium. The sub-reflector is a machined aluminium hyperboloid or ellipsoid rigidly supported by a special plastic cylinder. These antennas are designed to have minimal cross-section to reduce aperture blockage, and hence produce low sidelobe levels (typically 18 dB). The typical VSWR is 1.25:1. The antenna’s gain depends upon its diameter.

The antenna feed is a circular waveguide of appropriate diameter with an optional circular-to-rectangular transition. D-band antennas for 110-170 GHz are also available by special orders.

Cassegrain Antennas Specifications

for Cassegrain antenna ECA – XX series

Ka-band, 26.5-40 GHz

Part NoDiameter of main reflector (mm)Gain
dB (typ)
Beam width at 3dB level  deg. (typ)VSWR
(typ)
ECA-Ka-X-10010026.36.01.40
ECA-Ka-X-20020032.72.91.35
ECA-Ka-X-30030036.42.01.25
ECA-Ka-X-45045040.91.31.25
ECA-Ka-X-60060042.90.91/25

Losses in a Protected cover is 0.7 dB (max)

The feed waveguide is circular or rectangular

Information for Ordering: X= Number for the type of feed waveguide

Available types of Circular waveguides are:

NumberFrequency Band (GHz)Diameter of Waveguide (inch)Flange
X=026.0-28.50.328UG-381/U
X=128.5-33.00.281UG-381/U
X=233.0-38.50.250UG-381/U
X=338.5-43.00.219UG-381/U

Available type of Rectangular waveguide is:

X=2826.5-40WR-28UG-599/U UG-381/U UG-600

Data for Gain and Bandwidth are typical for the middle of the frequency range.

Q-band, 33-50 GHz

Part NoDiameter of the main reflector (mm)Gain, dB (typ)Beam width at 3 dB level  deg (typ)VSWR
(typ)
ECA-Q-X-10010028.34.81.40
ECA-Q-X-20020034.62.31.35
ECA-Q-X-30030038.51.61.25
ECA-Q-X-45045042.91.01.25
ECA-Q-X-60060044.90.71.25
ECA-Q-X-90090047.00.41.25

Losses in a Protected cover is 0.7 dB (max)

The feed waveguide is circular or rectangular

Information for Ordering: X= Number for the type of feed waveguide

Available types of Circular waveguides are:

NumberFrequency Band (GHz)Diameter of Waveguide (inch)Flange
X=033.0-38.50.250UG-383/U
X=138.5-43.00.219UG-383/U
X=243.0-50.00.188UG-383/U

Available type of Rectangular waveguide is:

X=2233-50WR-22UG-383/U TRG719

Data for Gain and Bandwidth are typical for the middle of the frequency range.

U-band, 40-60 GHz

Part NoDiameter of main reflector (mm)Gain,
dB (typ)
Beam width at 3dB level deg (typ)VSWR
(typ)
ECA-U-X-10010032.03.91.35
ECA-U-X-20020038.22.01.30
ECA-U-X-30030041.71.31.25
ECA-U-X-45045044.80.91.25
ECA-U-X-60060046.40.71.25

Losses in a Protected cover is 0.7 dB (max)

The feed waveguide is circular or rectangular

Information for Ordering: X= Number for the type of feed waveguide

Available types of Circular waveguides are:

NumberFrequency Band (GHz)Diameter of Waveguide (inch)Flange
X=038.5-43.00.219UG-383/U
X=143.0-50.00.188UG-383/U
X=250.0-58.00.165UG-383/U

Available type of Rectangular waveguide is:

X=1940-60WR-19UG-383/U TRG720

Data for Gain and Bandwidth are typical for the middle of the frequency range.

V-band, 50-75 GHz 

Part NoDiameter of the main reflector (mm)Gain,
dB (typ)
Beam width at 3dB level  deg (typ)VSWR
(typ)
ECA-V-X-10010034.03.11.3
ECA-V-X-20020039.71.51.25
ECA-V-X-30030042.41.01.25
ECA-V-X-45045045.40.71.25
ECA-V-X-60060047.50.51.25

Losses in a Protected cover is 0.7 dB (max)

The feed waveguide is circular or rectangular

Information for Ordering: X= Number for the type of feed waveguide

Available types of Circular waveguides are:

NumberFrequency Band (GHz)Diameter of Waveguide (inch)Flange
X=050.0-58.00.165UG-385/U
X=158.0-68.00.141UG-385/U
X=268.0-77.00.125UG-385/U

Available type of Rectangular waveguide is:

X=1550-75WR-15UG-385/U

Data for Gain and Bandwidth are typical for the middle of the frequency range.

E-band, 60-90 GHz

Part NoDiameter of the main reflector (mm)Gain,
dB (typ)
Beam width at 3dB level deg (typ)VSWR
(typ)
ECA-E-X-10010034.42.61.30
ECA-E-X-20020039.91.31.25
ECA-E-X-30030043.50.91.25
ECA-E-X-45045046.60.61.25
ECA-E-X-60060049.50.41.25

Losses in a Protected cover is 0.7 dB (max)

The feed waveguide is circular or rectangular

Information for Ordering: X= Number for the type of feed waveguide

Available types of Circular waveguides are:

NumberFrequency Band (GHz)Diameter of Waveguide (inch)Flange
X=168.0-77.00.125UG-387/U
X=277.0-87.00.110UG-387/U
X=387.0-100.00.094UG-387/U

Available type of Rectangular waveguide is:

X=1260-90WR-12UG-387/U

Data for Gain and Bandwidth are typical for the middle of the frequency range.

W-band, 75-110 GHz

Part NoDiameter of main reflector (mm)Gain, dB (typ)Beam width at 3dB level deg (typ)VSWR
(typ)
ECA-W-X-10010035.72.11.25
ECA-W-X-20020041.71.01.25
ECA-W-X-30030045.00.71.25
ECA-W-X-45045048.00.51.25
ECA-W-X-60060050.00.41.25

Losses in a Protected cover is 0.7 dB (max)

The feed waveguide is circular or rectangular

Information for Ordering: X= Number for the type of feed waveguide

 Available types of Circular waveguides are:

NumberFrequency Band (GHz)Diameter of Waveguide (inch)Flange
X=077.0-87.00.110UG-387/U-M
X=187.0-100.00.094UG-387/U-M
X=2100.0-112.00.082UG-387/U-M

Available type of Rectangular waveguide is:

X=1075-110WR-10UG-387/U-M

Data for Gain and Bandwidth are typical for the middle of the frequency range.

F-band, 90-140 GHz

Part NoDiameter of main reflector (mm)Gain
dB (typ)
Beam width at 3dB level deg (typ)VSWR
(typ)
ECA-F-X-10010037.01.71.25
ECA-F-X-20020042.60.91.25
ECA-F-X-30030045.90.61.25
ECA-F-X-45045048.00.51.25

Losses in a Protected cover is 0,7 dB (max)

The feed waveguide is circular or rectangular

Information for Ordering: X= Number for the type of feed waveguide 

Available types of Circular waveguides are:

NumberFrequency Band (GHz)Diameter of Waveguide (inch)Flange
X=087.0-100.00.094UG-387/U-M
X=1100.0-112.00.082UG-387/U-M
X=2112.0-125.00.075UG-387/U-M
X=3125.0-140.00.067UG-387/U-M

Available type of Rectangular waveguide is:

X=890-140WR-8UG-387/U-M

Data for Gain and Bandwidth are typical for the middle of the frequency range.

D-band, 110-170 GHz

Part NoDiameter of main reflector (mm)Gain
dB (typ)
Beam width at 3dB level deg (typ)VSWR
(typ)
ECA-D-X-10010040.31.41.25
ECA-D-X-15015043.50.91.25
ECA-D-X-20020046.10.71.25
ECA-D-X-30030049.40.51.25
ECA-D-X-45045052.00.31.25

Losses in a Protected cover is 1,0 dB (max)

The feed waveguide is circular or rectangular

Information for Ordering: X= Number for the type of feed waveguide 

Available types of Circular waveguides are:

NumberFrequency Band (GHz)Diameter of Waveguide (inch)Flange
X=0110.0-140.00.073UG-387/U-M
X=1140.0-160.00.059UG-387/U-M

Available type of Rectangular waveguide is:

X=8110-170WR-6UG-387/U-M

Data for Gain and Bandwidth are typical for the middle of the frequency range

How to order your antenna

Specify Model Number ECA-A-X-BBB

A – waveguide band

X – waveguide type

BBB – size of main reflector in mm

Example:

To order antenna meets the following specification: operation frequency 75-110 GHz, in WR-10 waveguide band with UG-387/U-M flange and 300mm of main reflector, should be ordered as ECA-W-10-300.
All ELVA-1 antennas are warranted for one year after receipt.