Stacked LPDA

Stacked Log Periodic Antennas Overview Table

Horn AntennaNominal Frequency (MHz)Isotropic Gain (dBi)Antenna Factor (dB/m)SWR (typ.)Max. Input Power (W)ConnectorMount
MinMaxMinMaxMinMax
STLP 9128 C 2001500811824< 1.53000 *N, 7/1622 mm Tube
STLP 9128 C 13/30 2002000910824< 1.5800013-3038 mm Tube
STLP 9128 E Special 13/30 801200710223< 21400013-3038 mm Tube
STLP 9129 7010000611244< 24000 *N, 7/1622 mm Tube
STLP 9129 Special 8010000511344< 24000 *N, 7/1622 mm Tube
STLP 9128 F 701500810-240< 1.52000 *N, 7/16, 13-3022 mm Tube
STLP 9149 70090009121841< 1.5300 *N, 7/1622 mm Tube
STLP 9148 1000180007102049< 250N22 mm Tube
STLP 9128 E Special 801700710326< 1.52000 *N, 7/1622 mm Tube
STLP 9128 E 801500810022< 1.52000 *N, 7/1622 mm Tube
STLP 9128 D Special 803000612232< 1.62000 *N, 7/1622 mm Tube
STLP 9128 D 803000711230< 1.52000 *N, 7/1622 mm Tube

* Note. Max. Input Power depends on connector type. The Overview Table shows the maximum Max. Input Power (CW). For details, please refer to the product datasheet.


Schwarzbeck STLP 9128 C – Stacked Logarithmic Periodic Antenna

STLP 9128 C – Stacked Log Periodic Antenna

Main Application: Generation of defined fieldstrength levels for immunity testing.

  • Nominal Frequency: 200 MHz – 1500 MHz
  • Usable Frequency: 150 MHz – 4 GHz
  • Isotropic Gain: 8...11 dBi
  • Antenna Factor: 8...24 dB/m
  • Connector: N, 7/16
  • VSWR (typ.): < 1.5
  • Nominal Impedance: 50 Ω
  • Max. Power: 3000 W
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Schwarzbeck STLP9129 Stacked LPDA

STLP 9129 – Stacked Log Periodic Antenna

The unique STLP 9129 is able to cover the entire frequency range from 70 MHz to 10 GHz with a typical isotropic farfield gain of 8.6 dBi with a ripple of less than +/-2.3 dB only.
Main Application: Generation of defined high field strength levels for radiated immunity testing acc. IEC 61000-4-3.

  • Nominal Frequency: 70 MHz – 10 GHz
  • Isotropic Gain: 6...11 dBi
  • Antenna Factor: 2...44 dB/m
  • Connector: N, 7/16
  • VSWR (typ.): < 2
  • Nominal Impedance: 50 Ω
  • Max. Power: 4000 W
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STLP 9129 Special – Stacked Log. Periodic Antenna

STLP 9129 Special – Stacked Log. Periodic Antenna

The STLP 9129 Special is nearly identical to the STLP 9129 but with smaller dimensions because of the folded longest elements.
Main Application: Generation of defined high field strength levels for radiated immunity testing acc. IEC 61000-4-3.

  • Nominal Frequency: 80 MHz – 10 GHz
  • Isotropic Gain: 5...11 dBi
  • Antenna Factor: 3...44 dB/m
  • Connector: N, 7/16
  • VSWR (typ.): < 2
  • Nominal Impedance: 50 Ω
  • Max. Power: 4000 W
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STLP 9128 F – Stacked Log Periodic Antenna

Main Application: Generation of defined high field strength levels for radiated immunity testing.

  • Nominal Frequency: 70 MHz – 1.5 GHz
  • Usable Frequency: 55 MHz – 3 GHz
  • Isotropic Gain: 8...10 dBi
  • Antenna Factor: -2...40 dB/m
  • Connector: N, 7/16, 13-30
  • VSWR (typ.): < 1.5
  • Nominal Impedance: 50 Ω
  • Max. Power: 2000 W
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STLP 9149 – Stacked Microwave Log-Periodic Antenna

STLP 9149 – Stacked Microwave Log-Periodic Antenna

The STLP 9149 is especially suitable for Immunity Testing acc. to IEC 61000-4-3 because of its good field uniformity. Further outstanding characteristics of the STLP 9149 are the wide bandwidth, the nearly constant high gain, very good impedance matching as well as equal beamwidth in E- and H-plane.

  • Nominal Frequency: 0.7 GHz – 9 GHz
  • Usable Frequency: 0.6 GHz – 10.5 GHz
  • Isotropic Gain: 9...12 dBi
  • Antenna Factor: 18...41 dB/m
  • Connector: N, 7/16
  • VSWR (typ.): < 1.5
  • Nominal Impedance: 50 Ω
  • Max. Power: 300 W
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STLP 9128 D Special – Stacked Log Periodic Antenna

STLP 9128 D Special – Stacked Log Periodic Antenna

Main Application: Generation of defined fieldstrength levels for immunity testing with good field uniformity and limited space.

  • Nominal Frequency: 80 MHz – 3 GHz
  • Usable Frequency: 70 MHz – 4 GHz
  • Isotropic Gain: 6...12 dBi
  • Antenna Factor: 2...32 dB/m
  • Connector: N, 7/16
  • VSWR (typ.): < 1.6
  • Nominal Impedance: 50 Ω
  • Max. Power: 2000 W
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STLP 9128 D – Stacked Log Periodic Antenna

STLP 9128 D – Stacked Log Periodic Antenna

Main Application: Generation of defined field strength levels for radiated immunity testing.

  • Nominal Frequency: 80 MHz – 3 GHz
  • Usable Frequency: 65 MHz – 4 GHz
  • Isotropic Gain: 7...11 dBi
  • Antenna Factor: 2...30 dB/m
  • Connector: N, 7/16
  • VSWR (typ.): < 1.5
  • Nominal Impedance: 50 Ω
  • Max. Power: 2000 W
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