Com-Power AL-100 Log Periodic Antenna

Frequency Range: 300 MHz - 1 GHz

The Com-Power AL-100 Log Periodic Antenna is lightweight and rugged. This Log Periodic Antenna can be utilised for EMI radiated emissions or immunity testing to meet the various test standards. Our Log Periodic Antenna has a low VSWR and can be used inside an anechoic chamber or outdoors in an open area test site. This Log Periodic Antenna operates in the frequency range of 300 MHz to 1 GHz.

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Com-Power AL-100 Log Periodic Antenna Product Description

The AL-100 is a broadband, linearly polarised 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.

Com-Power AL-100 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 gauge, corrosion resistant aluminium.


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 Normalised 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 AL100 can also be used for test site comparisons, shielding effectiveness tests of large enclosures, field monitoring, site surveys and other general purposes.

Com-Power AL-100 Log Periodic Antenna Resources

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