Log Periodic Antennas

  • The EM-6917B-1, a hybrid combination of the industry standard biconical and log periodic antennas, delivers an unmatched combination of frequency coverage and high power handling capability. Featuring exceptionally broad frequency coverage of 26 MHz to 3 GHz, the EM-6917B-1 eliminates the need for adjustments or switching antennas in most test applications up to 3 GHz, and it does so without compromising power handling capability for transmit applications.

    The EM-6917B-1 is supplied with an integral balun that minimizes the effect of cable placement on measurements as seen with some other antennas. Telescopically collapsible biconical elements are available for improved performance at lower frequencies. Each antenna is individually calibrated for field strength measurements from 26 MHz to 3 GHz.

    Specifications

    Electrical

    Frequency Range: 30 MHz to 3 GHz Impedance, nominal: 50 Ohm, nominal VSWR: <2.0:1, typical Power: 1000 W, peak Connector: Type "N", female

    Mechanical

    Log Periodic Section

    Length: 1.53 M (60.2") Height: 12.7 cm (5.0") Width: 1.02m (40.2")

    Fixed Elements

    Length: 1.98 m (78.0") maximum Diameter: 2.92 m (115.0") maximum Height: 1.58m (62")

    Product Sheet
  • The EM-6917B-2 is a hybrid combination of the industry standard biconical and log periodic antennas delivering an unmatched combination of frequency coverage and high power handling capability. Featuring exceptionally broad frequency coverage of 26 MHz to 3 GHz, the EM-6917B-2 eliminates the need for adjustments or switching antennas in most test applications up to 3 GHz, and it does so without compromising power handling capability for transmit applications.

    The EM-6917B-2 is supplied with an integral balun which minimizes the effect of cable placement on measurements as seen with some other antennas. Telescopically collapsible biconical elements improve performance at lower frequencies, increasing gain at 26 MHz as high as –20 dB. Each antenna is individually calibrated for field strength measurements from 26 MHz to 3 GHz.

    Specifications

    Electrical

    Frequency Range: 26 MHz to 3 GHz Impedance, nominal: 50 Ohm, nominal VSWR: <2.0:1, typical Power: 1000 W, peak Connector: Type "N", female

    Mechanical

    Telescoping Elements Length: 2.76 m (108.5”) tip to tip Diameter: 1.52 m (60”) Weight: 4.5 kg (10 lb)

    Log Periodic Section Length: 1.70 m (67") Height: 12.7 cm (5.0") Width: 1.02m (40.2")

    Product Sheet
  • The Electro-Metrics EM-6936 Log Periodic Antenna operates over the 700 MHz - 1300 MHz frequency range.

    Applications

    The EM-6936 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 700 MHz - 1300 MHz. Its linearly polarized designed permits separate measurement of horizontal and vertical electric field components over its established range.

    Specifications

    Electrical

    Frequency Range: 700 MHz - 1300 MHz Impedance: 50 Ohms, nominal VSWR: < 2:1, average Gain: 3-6 dBi Average Beamwidth: E Plane: 70º H Plane: 125º Maximum Continuous Power: 5 W Connector: Type SMA (Jack)

    Mechanical

    Length: 18.4 cm (7 ¼”) Width: 13.3 cm (5 ¼”) Depth: 1.58 cm (5/8”) Weight: 0.1 kg (.22 lb.) Mounting: Standard ¼-20 thread

    Product Sheet
  • The Electro-Metrics EM-6937 Log Periodic Antenna operates over the 1.1-18 GHz frequency range.

    Applications

    The EM-6937 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 1.1-18 GHz. Its linearly polarized designed permits separate measurement of horizontal and vertical electric field components over its established range.

    Specifications

    Electrical

    Frequency Range: 1.1 GHz - 18 GHz Impedance: 50 Ohms, nominal VSWR: < 2:1, average Gain: 3-6 dBi Average Beamwidth: E Plane: 70º H Plane: 125º Maximum Continuous Power: 5 W Connector: Type SMA (Jack) Mechanical

    Mechanical

    Length: 13.7 cm (5 7/16”) Width:10.6 cm (4 ½”) Depth: 1.58 cm (5/8”) Weight: .05 kg (.11 lb.) Mounting: Standard ¼-20 thread

    Product Sheet
  • The Electro-Metrics EM-6939 Log Periodic Antenna operates over the 800 MHz - 20 GHz frequency range.

    Applications

    The EM-6939 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 800 MHz - 20 GHz. Its linearly polarized designed permits separate measurement of horizontal and vertical electric field components over its established range.

    Specifications

    Electrical

    Frequency Range: 800 MHz - 20 GHz Impedance: 50 Ohms, nominal VSWR: < 2:1, average Gain: 3-6 dBi Average Beamwidth: E Plane: 70º H Plane: 125º Maximum Continuous Power: 5 watts Connector: Type SMA (Jack)

    Mechanical

    Length: 27 cm (10.07”) Width: 20 cm (8”) Depth: 1.5 cm (5/8”) Weight: .05 kg (.11 lb.) Mounting: Standard ¼-20 thread

    Product Sheet
  • The EM-6944 offers an exceptional combination of frequency coverage from 200 MHz – 3 GHz and high power handling capability without compromising the consistent performance versus frequency that makes the log periodic antenna so desirable for test applications.

    The wide band technology employed in the EM-6944 allows the convenience of a single antenna for tests that would require two or more antennas in the past.

    Specifications

    Electrical

    Frequency Range: 200 MHz - 3 GHz Impedance, nominal: 50 Ohms Average VSWR: 2.0:1 Power handling: 1000 Watts Continuous Connector: Type N

    Mechanical

    Length: 80 cm (31”) Width: 75 cm (30”) Height: 12.7 cm (5.0”) 55 cm (22”) with antenna mount Weight: 1.9 kg (5 lb.)

    Product Sheet
  • The EM-6946 offers an exceptional combination of frequency coverage of 300 MHz –3 GHz and high power handling capability without compromising the consistent performance versus frequency that makes the log periodic antenna so desirable for test applications.

    The wide band technology employed in the EM-6946 allows the convenience of a single antenna for tests that would require two or more antennas in the past. This antenna is ruggedly built and is individually calibrated.

    Specifications

    Electrical

    Frequency Range: 300 MHz - 3 GHz Impedance, nominal: 50 Ohms, nominal Average VSWR: <2:1 Maximum Continuous Power: 1000 W Connector: Type N, female

    Mechanical

    Length: 641 mm (25.25”) Width: 552 mm (21.75”) Depth: 63.5 mm (2.5”) Weight: 1.6 kg (3.5 lbs.)

    Product Sheet
  • The EM-6947 is an ultra-wide bandwidth log periodic dipole array aimed at applications requiring consistent performance over a very wide frequency range. Capable of both receiving and moderate power level transmitting, the EM-6947 can take the place of two or more conventional antennas, allowing you to take full advantage of the tuning range capabilities of modern receiver and spectrum analyzer designs with less inconvenience caused by the need to switch antennas.

    The EM-6947 is supplied with individually measured calibration data for EMC testing applications, and has many uses in communications spectrum monitoring and surveillance was well.

    Specifications

    Electrical

    Frequency: 200 MHz - 5 GHz Gain: 6 dBi, typical Average VSWR: 1.8:1 Connector: Type N, female Maximum Continuous Power: 150 W < 1 GHz 70 W > 1 GHz

    Mechanical

    Length: 82.6 cm (32.5”) Width: 74.9 cm (29.5”) Depth: 6.4 cm (2.5”) Weight: 1.8 kg (4.0 lbs.)

    Product Sheet
  • The Electro-Metrics EM-6950 Log Periodic Antenna was designed to operate over the 200 MHz to 1 GHz frequency range to meet VDE/FCC, military, and other EMI specifications.

    Applications

    The EM-6950 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 200 MHz to 1 GHz. Its linearly polarized design permits separate measurement of horizontal and vertical electric field components over its established range. The broadband frequency capacity of the EM-6950 eliminates the need for band switching, element extension or external tuning when used for EMI ambient surveys or spectrum signature measurements.

    Specifications

    Electrical

    Frequency Range: 200 MHz – 1 GHz Input Impedance: Calibrated in a 50-ohm system Average VSWR: <2:1 Maximum Continuous Power: 1000 W Peak Power (short term): 1300 W Output Connector: Type N, female

    Mechanical

    Length: 749 mm (29.5”) Width: 749 mm (29.5”) Depth: 63.5 mm (2.5”) Weight: 1.8 kg (5 lbs.)

    Product Sheet
  • The Electro-Metrics EM-6951 Log Periodic Antenna was designed to operate over the 300 MHz to 1 GHz frequency range.

    Applications

    The EM-6951 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 300 MHz to 1 GHz. Its linearly polarized design permits separate measurement of horizontal and vertical electric field components over its established range. The broadband frequency capacity of the EM-6951 eliminates the need for band switching, element extension or external tuning when used for ambient surveys or spectrum signature surveys. All-aluminum construction makes it easily portable and suitable for use in applications where space is limited.

    Specifications

    Electrical

    Frequency Range: 300 MHz – 1 GHz Gain: 5 dB Typical Impedance: 50 Ohms, nominal Average VSWR: 2:1 Maximum Continuous Power: 1000 W Connector: Type N, female

    Mechanical

    Length: 572 mm (22.5”) Width: 483 mm (19”) Depth: 127 mm (5”) Weight: 1.4 kg (3 lbs.)

    Product Sheet
  • The Electro-Metrics EM-6952 Log Periodic Antenna operates over the 1-18 GHz frequency range. The broadband frequency capacity of the EM-6952 eliminates the need for band switching, element extension or external tuning.

    Applications

    The EM-6952 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 1-18 GHz. It’s linearly polarized designed permits separate measurement of horizontal and vertical electric field components over its established range.

    Specifications

    Electrical

    Frequency Range: 1 - 18 GHz Impedance: 50 Ohms, nominal Average VSWR: <3:1 Average Beamwidth: E Plane: 70º H Plane: 125º Maximum Continuous Power: 5 W Connector: Type N, female

    Mechanical

    Length: 260 mm (10.24”) Width: 203 mm (8”) Depth: 32 mm (1.25”) Weight: 454 g (1 lb.)

    Product Sheet
  • The Electro-Metrics EM-6952-1 Log Periodic Antenna operates over the 1 to 2 GHz frequency range. The EM-6952-1 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 1 to 2 GHz. Its linearly polarized designed permits separate measurement of horizontal and vertical electric field components over its established range. Enclosed in a weather resistant radome, this antenna is suitable for indoor or outdoor usage.

    Specifications

    Electrical

    Frequency Range: 1 GHz – 2 GHz Impedance: 50 Ohms, nominal VSWR: < 2.5:1, average Average Beamwidth: E Plane: 70° H Plane: 125° Maximum Continuous Power: 50 W Connector: Type N, female

    Mechanical

    Length: 26.04 cm (10.25”) Width: 20.32 cm (8”) Depth: 3.125 cm (1.25”)

    Product Sheet
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