Antennas Direct DB2e DB2-E Manual Do Utilizador
Códigos do produto
DB2-E
Technical Data Sheet:
Antennas Direct DB2E Antenna
Physical Data:
Dimensions:
Width = 23 in.
Height = 16.25 in.
Depth = 7 in.
Weight:
TBD
Turning Radius:
11.5 in.
Electrical Data:
Design Pass Band:
UHF 470 MHz to 698 MHz
Channels 14 – 51
Impedance:
75 ohm
Connector:
F-Female
Performance Data:
Peak Gain:
11.8 dBi
@ 698 MHz
VSWR:
3.0 Max
470 MHz to 698 MHz
Notes:
1. Unless stated otherwise, all performance data computed using Remcom, Inc. X-FDTD 7.0 simulator.
2. Assumptions: PEC, free space. PCB balun included. 75 ohm reference.
3. Gain is specified dBi (isotropic) per IEEE definition. Mismatch losses not included.
4. There are two common meanings for Front-to-Back Ratio (F/B). One specifies ratio as measured 180 degrees opposite boresight. The other, used by IEEE
2. Assumptions: PEC, free space. PCB balun included. 75 ohm reference.
3. Gain is specified dBi (isotropic) per IEEE definition. Mismatch losses not included.
4. There are two common meanings for Front-to-Back Ratio (F/B). One specifies ratio as measured 180 degrees opposite boresight. The other, used by IEEE
specifies the ratio of boresight gain to maximum gain in rear hemisphere. The IEEE definition is the most conservative. IEEE F/B values shown here are
computed based on azimuth and elevation cuts provided in this document.
computed based on azimuth and elevation cuts provided in this document.
Copyright (c) Antennas Direct, Inc., 2011.
Page 1 of 7
Illustration 1: DB2E
Frequency (MHz)
470
9.06
55.5
68
13.46
546
9.92
50.5
61
15.52
622
10.9
44.7
59
17.5
698
11.73
39.6
54
18.53
Boresight
Gain (dBi)
Azimuth – Half
Power Beam Width
(deg)
Elevation – Half
Power Beam
Width (deg)
IEEE Rear
Hemisphere F/B
(dB)