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Description The AL-100 is a broadband, linearly polarized Log Periodic Antenna Dipole Array (LPDA) Antenna, operating over the frequency range of 200 MHz to 1 GHz; and with excellent efficiency between 300 MHz and 1 GHz. It can be used as either a receiving antenna or as a transmitting antenna. Construction The AL-100 is designed to be extremely durable, making it an ideal choice for daily use in laboratory environments, both indoors and outdoors, and even under continuous exposure to extreme weather conditions. The antenna elements of the AL-100 are solid stainless steel. The “feeder tubes”, to which the elements are attached, are constructed from a heavy guage, corrosion resistant aluminum. Com-Power Corporation 19121 El Toro Rd., Silverado, California 92676 (949) 459-9600 www.com-power.com Rev. D10.15 Application The AL-100 Log Periodic Antenna is intended for use as an EMI test antenna for qualification-level regulatory compliance measurements (FCC, CE, RTCA DO-160, FDA, SAE Automotive, etc.). The AL-100 can also be used in conjunction with an RF power amplifier (up to 50 watts) to generate RF fields associated with radiated immunity tests. For high power applications, Com-Power’s ALP-100 Power Log Periodic Antenna is an excellent choice. In addition, a pair of AL-100 Log Periodic Antennas can be used in lieu of dipole antennas for Normalized Site Attenuation (NSA) calibrations of Open Area Test Sites (OATS) or Semi-Anechoic Chambers (SAC); thereby avoiding the time-consuming process of tuning the dipole element lengths at each discrete frequency. Notwithstanding the above applications, the AL- 100 can also be used for test site comparisons, shielding effectiveness tests of large enclosures, field monitoring, site surveys and other general purposes. Mounting The mounting assembly for the the AL-100 incorporates a hinge mechanism to quickly and easily change the antenna polarization. The assembly is equipped with a standard 1/4-inch x 20 mounting hole, which allows it to be affixed to Com-Power’s AT-812 Antenna Tripod, AM-400 Antenna Mast, or any other similar structure with compatible mounting arrangements. Features Frequency Range 300 MHz to 1 GHz (useable from 200 MHz) Transmit & Receive Capabilities emissions/immunity applications Individual Calibration Included per ANSI C63.5 with NIST traceability Three-year Standard Warranty Calibration Each antenna is individually calibrated per ANSI C63.5 with NIST traceability. The calibration data and certificate is provided. Recognized ISO 17025 accredited calibration is also available upon request. (H) 21.5" (W) 5.1" (D) 39" Log Periodic Antenna AL-100
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Log Periodic Antenna - Com-Power Corporation · Description The AL-100 is a broadband, linearly polarized Log Periodic Antenna Dipole Array (LPDA) Antenna, operating over the frequency

Aug 27, 2019

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  • DescriptionThe AL-100 is a broadband, linearly polarized Log Periodic Antenna Dipole Array (LPDA) Antenna, operating over the frequency range of 200 MHz to 1 GHz; and with excellent efficiency between 300 MHz and 1 GHz. It can be used as either a receiving antenna or as a transmitting antenna.

    ConstructionThe AL-100 is designed to be extremely durable, making it an ideal choice for daily use in laboratory environments, both indoors and outdoors, and even under continuous exposure to extreme weather conditions. The antenna elements of the AL-100 are solid stainless steel. The “feeder tubes”, to which the elements are attached, are constructed from a heavy guage, corrosion resistant aluminum.

    Com-Power Corporation 19121 El Toro Rd., Silverado, California 92676 (949) 459-9600 www.com-power.comRev. D10.15

    ApplicationThe AL-100 Log Periodic Antenna is intended for use as an EMI test antenna for qualification-level regulatory compliance measurements (FCC, CE, RTCA DO-160, FDA, SAE Automotive, etc.). The AL-100 can also be used in conjunction with an RF power amplifier (up to 50 watts) to generate RF fields associated with radiated immunity tests. For high power applications, Com-Power’s ALP-100 Power Log Periodic Antenna is an excellent choice.In addition, a pair of AL-100 Log Periodic Antennas can be used in lieu of dipole antennas for Normalized Site Attenuation (NSA) calibrations of Open Area Test Sites (OATS) or Semi-Anechoic Chambers (SAC); thereby avoiding the time-consuming process of tuning the dipole element lengths at each discrete frequency. Notwithstanding the above applications, the AL-100 can also be used for test site comparisons, shielding effectiveness tests of large enclosures, field monitoring, site surveys and other general purposes.

    MountingThe mounting assembly for the the AL-100 incorporates a hinge mechanism to quickly and easily change the antenna polarization. The assembly is equipped with a standard 1/4-inch x 20 mounting hole, which allows it to be affixed to Com-Power’s AT-812 Antenna Tripod, AM-400 Antenna Mast, or any other similar structure with compatible mounting arrangements.

    Features • Frequency Range

    300 MHz to 1 GHz (useable from 200 MHz)

    • Transmit & Receive Capabilities emissions/immunity applications

    • Individual Calibration Included per ANSI C63.5 with NIST traceability

    • Three-year Standard Warranty

    CalibrationEach antenna is individually calibrated per ANSI C63.5 with NIST traceability. The calibration data and certificate is provided. Recognized ISO 17025 accredited calibration is also available upon request.

    (H)21.5"

    (W)5.1"

    (D)39"

    Log Periodic AntennaAL-100

    http://www.com-power.com

  • Com-Power Corporation 19121 El Toro Rd., Silverado, California 92676 (949) 459-9600 www.com-power.comRev. D10.15

    Specifications

    All specifications are subject to change without notice. All values are typical, unless specified.

    Typical Field Strength with 50W Input Power

    Product Name Log Periodic Antenna

    Frequency Range 300 MHz to 1 GHz (useable from 200 MHz)

    Polarization Linear

    Nominal Impedance 50Ω

    Power Handling 50 Watts (continuous)

    Connector N-type (female)

    Antenna Factor 12.3 to 23.2 (average: 18.8) [dB(m-1)]

    Isotropic Gain 6.2 to 7.7 (average: 7.1) dBi

    VSWR 1.03 to 1.89 (average: 1.24) :1

    Return Loss 10.2 to 35.5 (average: 21.3) dB

    Radiated Field Strength see graph below

    Specifications FCC, CISPR, EN, ETSI, FAA, MIL-STD-461, SAE, etc.

    Dimensions (H x W x D) 21.5” x 5.1” x 39” [54.6 x 13 x 99.1 cm]

    Weight 3 lbs. [1.4 kg]

    PAM-103 Preamplifier

    AT-812 Antenna Tripod

    Also Available:AB-900 Biconical Antenna

    AM-741 Active Monopole AntennaALP-100 & ALC-100 Log Periodic Antennas

    Accessories availablefrom Com-Power:

    SPA-800 Spectrum Analyzer

    1

    10

    100

    200 300 400 500 600 700 800 900 1000Frequency (MHz)

    Field

    Str

    engt

    h (V

    /m)

    3 meters

    1 meter

    Ant. Input (W) * 30 * [numeric] Gain

    Test Distance (m)Field Strength (V/m)

    Typical Forward Power Levels

    0.01

    0.1

    1

    10

    100

    200 300 400 500 600 700 800 900 1000Frequency (MHz)

    Forw

    ard

    Pow

    er (W

    atts

    )

    3 V/m @ 3m

    3 V/m @ 1m

    Field Strength (V/m)2 * Test Distance (m)2

    30 * [numeric] Isotropic Antenna GainForward Power (Watts) =

    Voltage Standing Wave Ratio (VSWR)

    1

    10

    100

    200 300 400 500 600 700 800 900 1000Frequency (MHz)

    VSW

    R (x

    :1)

    AL-100 Log Periodic Antenna AL-100 with 5 dBImpedance Matching Pad

    Return Loss

    1

    10

    100

    200 300 400 500 600 700 800 900 1000Frequency (MHz)

    Retu

    rn Lo

    ss (d

    B)

    AL-100 Log Periodic Antenna AL-100 with 5 dBImpedance Matching Pad

    Antenna Factors / Isotropic Gain

    10

    20

    30

    40

    50

    200 300 400 500 600 700 800 900 1000

    Frequency (MHz)

    Ante

    nna F

    acto

    r [dB

    (m-1

    )]

    -25

    -15

    -5

    5

    15

    Isotropic Gain (dBi)

    1 meter

    10 meters

    1 meter

    10 meters

    -3 dB [Half-Power] Beamwidth

    0

    100

    200

    300

    200 300 400 500 600 700 800 900 1000

    Frequency (MHz)

    -3 d

    B Be

    amw

    idth

    (deg

    rees

    )

    H-Plane

    E-Plane

    Log Periodic AntennaAL-100

    http://www.com-power.com