

Description
ELVA1 has developed a low cost high performance microwave antennas
to meet 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 26.5GHz to 140GHz with reflector diameters ranging from 100mm to 600mm.
The gain is up to 48dBi depending upon the frequency. The main reflector
has a highly accurate surface and is designed from aluminum.
The subreflector is a machined aluminum hyperboloid or ellipsoid
which is rigidly supported by special plastic cylinder.
These
antennas are designed to have minimal crosssection to reduce aperture
blockage, and hence produce low sidelobe levels (typically
18dB). Typical VSWR is 1.25:1. The gain of the antenna depends
upon its diameter.
The antenna feed is a circular waveguide of appropriate diameter
with an optional circulartorectangular transition.
Custom band antennas for 110170GHz are also available by
special orders.
Typical shipping time on antenna orders is 46 weeks. Each
antenna can be shipped with antenna bracket and
radome as standard options.
Specifications for
Cassegrain antenna ECA  XX series
Ka
band. 26,540 GHz
Part No 
Diameter of main reflector (mm) 
Gain dB,(typ) 
Beamwidth
in deg. at 3dB level (typ) 
VSWR (typ) 
ECAKaX100 
100 
26.3 
6.0 
1.40 
ECAKaX200 
200 
32.7 
2.9 
1.35 
ECAKaX300 
300 
36.4 
2.0 
1.25 
ECAKaX450 
450 
40.9 
1.3 
1.25 
ECAKaX600 
600 
42.9 
0.9 
1.25 
Losses in a Protected cover is 0,7 dB (max)
Feed waveguide is circular or rectangular
Information for Ordering : X= Number for type of feed waveguide
Available types of Circular waveguides are:
number 
Frequency Band (GHz) 
Diameter of Waveguide (inch) 
Flange 
X=0 
26.028.5 
0.328 
UG381/U 
X=1 
28.533.0 
0.281 
UG381/U 
X=2 
33.038.5 
0.250 
UG381/U 
X=3 
38.543.0 
0.219 
UG381/U 
Available type of Rectangular waveguide
is: 
X=28 
26,540 
WR28 
UG599/UUG381/UUG600 
Data for Gain and Bandwidth are typical for middle of frequency
range
Q
band. 3350 GHz
Part No 
Diameter of main reflector (mm) 
Gain dB, (typ) 
Beamwidth in deg. at 3dB level (typ) 
VSWR (typ) 
ECAQX100 
100 
28.3 
4.8 
1.40 
ECAQX200 
200 
34.6 
2.3 
1.35 
ECAQX300 
300 
38.5 
1.6 
1.25 
ECAQX450 
450 
42.9 
1.0 
1.25 
ECAQX600 
600 
44.9 
0.7 
1.25 
Losses in a Protected cover is 0,7 dB (max)
Feed waveguide is circular or rectangular
Information for Ordering : X= Number for type of feed waveguide
Available types of Circular waveguides are:
number 
Frequency Band (GHz) 
Diameter of Waveguide (inch) 
Flange 
X=0 
33.038.5 
0.250 
UG383/U 
X=1 
38.543.0 
0.219 
UG383/U 
X=2 
43.050.0 
0.188 
UG383/U 
Available type of Rectangular waveguide
is: 
X=22 
3350 
WR22 
UG383/UTRG719 
Data for Gain and Bandwidth are typical for middle of frequency
range
U
band. 4060 GHz
Part No 
Diameter of main reflector (mm) 
Gain dB, (typ) 
Beamwidth in deg. at 3dB level (typ) 
VSWR (typ) 
ECAUX100 
100 
32.0 
3.9 
1.35 
ECAUX200 
200 
38.2 
2.0 
1.30 
ECAUX300 
300 
41.7 
1.3 
1.25 
ECAUX450 
450 
44.8 
0.9 
1.25 
ECAUX600 
600 
46.4 
0.7 
1.25 
Losses in a Protected cover is 0,7 dB (max)
Feed waveguide is circular or rectangular
Information for Ordering : X= Number for type of feed waveguide
Available types of Circular waveguides are:
number 
Frequency Band (GHz) 
Diameter of Waveguide (inch) 
Flange 
X=0 
38.543.0 
0.219 
UG383/U 
X=1 
43.050.0 
0.188 
UG383/U 
X=2 
50.058.0 
0.165 
UG383/U 
Available type of Rectangular waveguide
is: 
X=19 
4060 
WR19 
UG383/UTRG720 
Data for Gain and Bandwidth are typical for middle of frequency
range






V
band. 5075 GHz
Part
No 
Diameter
of main reflector (mm) 
Gain
dB, (typ) 
Beamwidth in deg. at 3dB level (typ) 
VSWR
(typ) 
ECAVX100 
100 
34.0 
3.1 
1.3 
ECAVX200 
200 
39.7 
1.5 
1.25 
ECAVX300 
300 
42.4 
1.0 
1.25 
ECAVX450 
450 
45.4 
0.7 
1.25 
ECAVX600 
600 
47.5 
0.5 
1.25 
Losses
in a Protected cover is 0,7 dB (max)
Feed waveguide is circular or rectangular
Information for Ordering : X= Number for type of feed waveguide
Available
types of Circular waveguides are:
number 
Frequency
Band (GHz) 
Diameter
of Waveguide (inch) 
Flange 
X=0 
50.058.0 
0.165 
UG385/U 
X=1 
58.068.0 
0.141 
UG385/U 
X=2 
68.077.0 
0.125 
UG385/U 
Available
type of Rectangular waveguide is: 
X=15 
5075 
WR15 
UG385/U 
Data for
Gain and Bandwidth are typical for middle of frequency range
E
band. 6090 GHz
Part
No 
Diameter
of main reflector (mm) 
Gain
dB, (typ) 
Beamwidth in deg. at 3dB level (typ) 
VSWR
(typ) 
ECAEX100 
100 
34.4 
2.6 
1.30 
ECAEX200 
200 
39.9 
1.3 
1.25 
ECAEX300 
300 
43.5 
0.9 
1.25 
ECAEX450 
450 
46.6 
0.6 
1.25 
Losses
in a Protected cover is 0,7 dB (max)
Feed waveguide is circular or rectangular
Information for Ordering : X= Number for type of feed waveguide
Available
types of Circular waveguides are:
number 
Frequency
Band (GHz) 
Diameter
of Waveguide (inch) 
Flange 
X=0 
58.068.0 
0.141 
UG387/U 
X=1 
68.077.0 
0.125 
UG387/U 
X=2 
77.087.0 
0.110 
UG387/U 
X=3 
87.0100.0 
0.094 
UG387/U 
Available
type of Rectangular waveguide is: 
X=12 
6090 
WR12 
UG387/U 
Data for
Gain and Bandwidth are typical for middle of frequency range
W band. 75110 GHz
Part
No 
Diameter
of main reflector (mm) 
Gain
dB, (typ) 
Beamwidth in deg. at 3dB level (typ) 
VSWR
(typ) 
ECAWX100 
100 
35.7 
2.1 
1.25 
ECAWX200 
200 
41.7 
1.0 
1.25 
ECAWX300 
300 
45.0 
0.7 
1.25 
Losses
in a Protected cover is 0,7 dB (max)
Feed waveguide is circular or rectangular
Information for Ordering : X= Number for type of feed waveguide
Available
types of Circular waveguides are:
number 
Frequency
Band (GHz) 
Diameter
of Waveguide (inch) 
Flange 
X=0 
77.087.0 
0.110 
UG387/UM 
X=1 
87.0100.0 
0.094 
UG387/UM 
X=2 
100.0112.0 
0.082 
UG387/UM 
Available
type of Rectangular waveguide is: 
X=10 
75110 
WR10 
UG387/UM 
Data for
Gain and Bandwidth are typical for middle of frequency range
F
band. 90140 GHz
Part
No 
Diameter
of main reflector (mm) 
Gain
dB, (typ) 
Beamwidth in deg. at 3dB level (typ) 
VSWR
(typ) 
ECAFX100 
100 
37.0 
1.7 
1.25 
ECAFX200 
200 
42.6 
0.9 
1.25 
ECAFX300 
300 
45.9 
0.6 
1.25 
Losses
in a Protected cover is 0,7 dB (max)
Feed waveguide is circular or rectangular
Information for Ordering : X= Number for type of feed waveguide
Available
types of Circular waveguides are:
number 
Frequency
Band (GHz) 
Diameter
of Waveguide (inch) 
Flange 
X=0 
87.0100.0 
0.094 
UG387/UM 
X=1 
100.0112.0 
0.082 
UG387/UM 
X=2 
112.0125.0 
0.075 
UG387/UM 
X=3 
125.0140.0 
0.067 
UG387/UM 
Available
type of Rectangular waveguide is: 
X=8 
90140 
WR8 
UG387/UM 
Data for
Gain and Bandwidth are typical for middle of frequency range
Interested? Need more info?
Please fill in Enquiry Form
or just email us to
sales@elva1.com
How to Order
Specify
Model Number ECAAXBBB
A
waveguide band
X 
waveguide type
BBB –
size of main reflector
Example:
To order antenna meets the following specification: operation
frequency 75110 GHz, in WR10 waveguide band with 300mm of main
reflector, should be ordered as "ECA W10300".

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