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Description
ELVA-1 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 cross-section 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 circular-to-rectangular transition.
Custom band antennas for 110-170GHz are also available by
special orders.
Typical shipping time on antenna orders is 4-6 weeks. Each
antenna can be shipped with antenna bracket and
radome as standard options.
Specifications for
Cassegrain antenna ECA - XX series
Ka
band. 26,5-40 GHz
| Part No |
Diameter of main reflector (mm) |
Gain dB,(typ) |
Beamwidth
in deg. at 3dB level (typ) |
VSWR (typ) |
| ECA-Ka-X-100 |
100 |
26.3 |
6.0 |
1.40 |
| ECA-Ka-X-200 |
200 |
32.7 |
2.9 |
1.35 |
| ECA-Ka-X-300 |
300 |
36.4 |
2.0 |
1.25 |
| ECA-Ka-X-450 |
450 |
40.9 |
1.3 |
1.25 |
| ECA-Ka-X-600 |
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 |
26.0-28.5 |
0.328 |
UG-381/U |
| X=1 |
28.5-33.0 |
0.281 |
UG-381/U |
| X=2 |
33.0-38.5 |
0.250 |
UG-381/U |
| X=3 |
38.5-43.0 |
0.219 |
UG-381/U |
| Available type of Rectangular waveguide
is: |
| X=28 |
26,5-40 |
WR-28 |
UG-599/UUG-381/UUG-600 |
Data for Gain and Bandwidth are typical for middle of frequency
range
Q
band. 33-50 GHz
| Part No |
Diameter of main reflector (mm) |
Gain dB, (typ) |
Beamwidth in deg. at 3dB level (typ) |
VSWR (typ) |
| ECA-Q-X-100 |
100 |
28.3 |
4.8 |
1.40 |
| ECA-Q-X-200 |
200 |
34.6 |
2.3 |
1.35 |
| ECA-Q-X-300 |
300 |
38.5 |
1.6 |
1.25 |
| ECA-Q-X-450 |
450 |
42.9 |
1.0 |
1.25 |
| ECA-Q-X-600 |
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 |
33.0-38.5 |
0.250 |
UG-383/U |
| X=1 |
38.5-43.0 |
0.219 |
UG-383/U |
| X=2 |
43.0-50.0 |
0.188 |
UG-383/U |
| Available type of Rectangular waveguide
is: |
| X=22 |
33-50 |
WR-22 |
UG-383/UTRG719 |
Data for Gain and Bandwidth are typical for middle of frequency
range
U
band. 40-60 GHz
| Part No |
Diameter of main reflector (mm) |
Gain dB, (typ) |
Beamwidth in deg. at 3dB level (typ) |
VSWR (typ) |
| ECA-U-X-100 |
100 |
32.0 |
3.9 |
1.35 |
| ECA-U-X-200 |
200 |
38.2 |
2.0 |
1.30 |
| ECA-U-X-300 |
300 |
41.7 |
1.3 |
1.25 |
| ECA-U-X-450 |
450 |
44.8 |
0.9 |
1.25 |
| ECA-U-X-600 |
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 |
38.5-43.0 |
0.219 |
UG-383/U |
| X=1 |
43.0-50.0 |
0.188 |
UG-383/U |
| X=2 |
50.0-58.0 |
0.165 |
UG-383/U |
| Available type of Rectangular waveguide
is: |
| X=19 |
40-60 |
WR-19 |
UG-383/UTRG720 |
Data for Gain and Bandwidth are typical for middle of frequency
range
|
| |
|
|
|
|
V
band. 50-75 GHz
| Part
No |
Diameter
of main reflector (mm) |
Gain
dB, (typ) |
Beamwidth in deg. at 3dB level (typ) |
VSWR
(typ) |
| ECA-V-X-100 |
100 |
34.0 |
3.1 |
1.3 |
| ECA-V-X-200 |
200 |
39.7 |
1.5 |
1.25 |
| ECA-V-X-300 |
300 |
42.4 |
1.0 |
1.25 |
| ECA-V-X-450 |
450 |
45.4 |
0.7 |
1.25 |
| ECA-V-X-600 |
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 |
50.0-58.0 |
0.165 |
UG-385/U |
| X=1 |
58.0-68.0 |
0.141 |
UG-385/U |
| X=2 |
68.0-77.0 |
0.125 |
UG-385/U |
| Available
type of Rectangular waveguide is: |
| X=15 |
50-75 |
WR-15 |
UG-385/U |
Data for
Gain and Bandwidth are typical for middle of frequency range
E
band. 60-90 GHz
| Part
No |
Diameter
of main reflector (mm) |
Gain
dB, (typ) |
Beamwidth in deg. at 3dB level (typ) |
VSWR
(typ) |
| ECA-E-X-100 |
100 |
34.4 |
2.6 |
1.30 |
| ECA-E-X-200 |
200 |
39.9 |
1.3 |
1.25 |
| ECA-E-X-300 |
300 |
43.5 |
0.9 |
1.25 |
| ECA-E-X-450 |
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 |
58.0-68.0 |
0.141 |
UG-387/U |
| X=1 |
68.0-77.0 |
0.125 |
UG-387/U |
| X=2 |
77.0-87.0 |
0.110 |
UG-387/U |
| X=3 |
87.0-100.0 |
0.094 |
UG-387/U |
| Available
type of Rectangular waveguide is: |
| X=12 |
60-90 |
WR-12 |
UG-387/U |
Data for
Gain and Bandwidth are typical for middle of frequency range
W band. 75-110 GHz
| Part
No |
Diameter
of main reflector (mm) |
Gain
dB, (typ) |
Beamwidth in deg. at 3dB level (typ) |
VSWR
(typ) |
| ECA-W-X-100 |
100 |
35.7 |
2.1 |
1.25 |
| ECA-W-X-200 |
200 |
41.7 |
1.0 |
1.25 |
| ECA-W-X-300 |
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 |
77.0-87.0 |
0.110 |
UG-387/U-M |
| X=1 |
87.0-100.0 |
0.094 |
UG-387/U-M |
| X=2 |
100.0-112.0 |
0.082 |
UG-387/U-M |
| Available
type of Rectangular waveguide is: |
| X=10 |
75-110 |
WR-10 |
UG-387/U-M |
Data for
Gain and Bandwidth are typical for middle of frequency range
F
band. 90-140 GHz
| Part
No |
Diameter
of main reflector (mm) |
Gain
dB, (typ) |
Beamwidth in deg. at 3dB level (typ) |
VSWR
(typ) |
| ECA-F-X-100 |
100 |
37.0 |
1.7 |
1.25 |
| ECA-F-X-200 |
200 |
42.6 |
0.9 |
1.25 |
| ECA-F-X-300 |
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 |
87.0-100.0 |
0.094 |
UG-387/U-M |
| X=1 |
100.0-112.0 |
0.082 |
UG-387/U-M |
| X=2 |
112.0-125.0 |
0.075 |
UG-387/U-M |
| X=3 |
125.0-140.0 |
0.067 |
UG-387/U-M |
| Available
type of Rectangular waveguide is: |
| X=8 |
90-140 |
WR-8 |
UG-387/U-M |
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@elva-1.com
How to Order
Specify
Model Number ECA-A-X-BBB
A-
waveguide band
X -
waveguide type
BBB –
size of main reflector
Example:
To order antenna meets the following specification: operation
frequency 75-110 GHz, in WR-10 waveguide band with 300mm of main
reflector, should be ordered as "ECA -W-10-300".
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