Atec ARA-LPD User Manual
Constant beamwidth over wide band of operation and typical
radiation pattern of log periodic antennas make these
antennas ideally suited for generating uniform fields over a
large area.
Several high gain arrays and broadband antennas which
can handle power levels in excess of several kilowatts are
available for immunity testing per IEC 1000-4-3, MIL-STD
and SAE requirements. All log periodic antennas from ARA
TECH offer a cross polarization rejection in excess of 20dB,
especially suited for measurements per CISPR 16-1.
Four types of log periodic antennas for EMC emission and
immunity testing are offered. These are LPD and LPV
series linearly polarized antennas, LPC series dual
polarized antennas, and LPA series high gain arrays.
LINEARLY POLARIZED
LPD series antennas are linearly polarized, log periodics
designed to transmit and receive signals over a broad
frequency range. These antennas are characterized by a
high front-to-back ratio, excellent SWR and medium power
gain at all frequencies in the band. Polarization adjustment
is possible in any plane, with a universal joint.
LOG PERIODIC DIPOLES
20 MHz - 18 GHz
TRANSMIT - RECEIVE
LPD-2010/C
High quality aluminum construction with all stainless steel
hardware make for a lightweight, high strength antenna that
will provide years of trouble-free operation. For emission
testing or low power transmit applications, an assortment of
low profile LPDs are available. These antennas are
constructed on cost-effective copper clad dielectric
materials. LPDs exhibit the same performance standards as
our other antennas, but with cost savings to the customer.
Standard LPD antennas are intended for relatively
permanent installations. LPD series antennas operating
below 400 MHz are also supplied in a kit form for storage
and transportation. Antennas in the kit form assemble
easily with minimum tool requirements.
LPV-2010
The Vee configuration, LPV series log periodic antennas give greater power gain than that obtainable
with a planar log-periodic antenna of the same length and taper. The short length of the LPV-2010/C
antenna restricts the movement of the active region as a function of frequency to a relatively small
volume, which is desirable in RFI measurements.
LOG PERIODIC DIPOLES
20 MHz - 18 GHz
TRANSMIT - RECEIVE
SPECIFICATIONS
FREQUENCY TYP. GAIN TYP. FRONT/ VSWR POWER POLARIZATION
LPD-2010/C
LPV-2010/C
LPD-8270
LPD-2027
LPD-8130/A1
LPD-1011
LPD-2020/A
LPD-3500
LPD-820/A
LPD-118
*Specifications from 35 to 220 MHz
200 - 1000 MHz 7.5 20 1.5 : 1 1 kW 1.4 kW Linear
200 - 1000 MHz 7.0 20 2 : 1 100 W 100 W Linear
80 - 2700 MHz 6.0 20 2 : 1 2 kW 2.6 kW Linear
200 - 2700 MHz 6.0 20 2 : 1 50 W 75 W Linear
80 - 1300 MHz 6.0 20 2.5 : 1 1.5 kW 2 kW Linear
100 - 1100 MHz 6.0 20 2 : 1 1 kW 1.4 kW Linear
200 - 2000 MHz 6.5 20 2 : 1 250 W 500 W Linear
300 - 5000 MHz 5.0 15 2 : 1 5 W 25 W Linear
750 - 2000 MHz 6.5 20 2 : 1 125 W 300 W Linear
1.0 - 18.0 GHz 7.0 18 2 : 1 5 W 25 W Linear
ELECTRICAL Impedance: 50 ohms
I
NDIVIDUALLY CALIBRATED
(DBI.) BACK (DB) CW PEAK
LPD-118
LPD-3500
MECHANICAL
BOOM
LENGTH
LPD-2010/C
LPV-2010/C
LPD-8270
LPD-2027
LPD-8130/A1
LPD-1011
LPD-2020/A
LPD-3500
LPD-820/A
LPD-118
51” 29” 4/1.8 Aluminum Center N Female Yes
27” 15”/29” 8/3.6 Copper Clad End BNC - F N/A
67” 82.5” 4” Aluminum Center N Female Yes
34” 4 / 27.5 2.5 / 1.1 Aluminum Center N Female N/A
64” 77” 15 / 7 Aluminum Center N Female N/A
60” 60” 7.6 / 3.5 Aluminum Center N Female Yes
45” 30” 4 / 1.8 Aluminum Center N Female N/A
16.5” 20” 1.0 / .45 Copper Clad Center SMA F em al e N/A
10” 7.5” / 7.5” 4 / 1.8 Aluminum End BNC - F N/A
9” 8” 1 / .45 Copper Clad End SMA Female N/A
** For ordering in kit form, add a subscript "K" at the end of the model number
WIDTH /
HEIGHT
WEIGHT
(LBS/KG)
CONSTRUCTION MOUNTING CONNECTOR
KIT **
TYPE
LOG PERIODIC DIPOLES
20 MHz - 18 GHz
TRANSMIT - RECEIVE
LPD-3500
Antenna Factor, Gain and Power required for 10
V/m field strength at 1 m
Frequency
(GHz)
0.3 15.2 4.6 1.16
0.4 16.2 6.1 .80
0.5 18.5 5.7 .90
0.6 19.8 6.0 .84
0.7 21.2 5.9 .86
0.85 22.5 6.3 .78
1.0 24.1 6.1 .82
2.0 32.2 4.1 1.29
3.0 35.5 4.3 1.24
4.0 35.9 6.4 .76
5.0 39.4 4.8 1.10
Antenna Factor, Gain and Power
required for 10 V/m field strength at 1 m
Frequency
(GHz)
1 23.4 6.7 .69 200 9.0
2 31.2 5.0 1.04 250 10.5
3 33.8 6.0 .84 300 11.6
4 34.3 8.0 .53 400 13.9
5 37.1 7.2 .65 500 15.5
6 37.2 8.6 .46 600 17.3
7 38.9 8.2 .50 700 19.2
8 40.1 8.2 .51 850 20.1
9 39.7 9.6 .36 1000 22.4
10 40.9 9.3 .39
11 42.5 8.6 .46
12 43.3 7.9 .47
13 44.7 7.8 .55
14 44.1 9.0 .41
15 45.3 8.5 .48
16 45.5 8.8 .44
17 47.3 7.6 .59
18 50.5 4.9 1.09
AFE
(dB m
AFE
(dB m
-1
LPD-118
Gain
)
(dBi)
-1
Gain
)
(dBi)
Power
(Watts)
Power
(Watts)
Antenna Factor, Gain and
Frequency
required for 10 V/m field strength at 3 m
Frequency
(MHz)
LPD-1011
Power required for 10
V/m field strength at 1 m
AFE
(MHz)
100 5.2 5.0 1.05
200 9.8 6.4 .75
250 9.9 8.3 .49
300 12.3 7.5 .60
400 15.6 6.7 .72
500 16.2 8.0 .53
600 17.8 8.0 .53
700 20.3 6.8 .69
850 22.2 6.6 .73
1000 23.1 7.1 .65
LPD-2010/C
Antenna Factor, Gain and Power
AFE
(dB m
(dB m
-1
)
-1
Gain
)
(dBi)
Gain
(dBi)
7.2 5.7
7.6 5.1
8.1 4.6
8.3 4.4
8.7 4.0
8.4 4.2
7.9 4.8
8.7 4.0
7.8 4.9
Power
(Watts)
Power
(Watts)
The LPD series universal joint allows for the
polarization and tilt adjustments of LPD series
antennas.
LPD S
ERIES UNIVERSAL JOINT
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