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Antenna Selection - Railway Emissions Test Antenna Solutions

Electromagnetic Compatibility (EMC) testing in the railway industry requires a range of specialized antennas to measure both radiated emissions and immunity across various frequency ranges, ensuring compliance with standards such as EN 50121 and IEC 61000. Biconical antennas, typically covering 20 MHz to 300 MHz, are used for radiated emissions and immunity tests in the lower frequency range due to their wideband performance and omnidirectional characteristics. Log-Periodic Dipole Array (LPDA) antennas, operating from approximately 200 MHz to 1 GHz, provide high gain and directional properties, making them ideal for emission and immunity tests in the VHF and UHF bands. For higher frequencies, horn antennas, which generally cover 1 GHz to 18 GHz or beyond, offer high directivity and efficient power handling, making them essential for immunity testing and emission measurements.

At lower frequencies, loop antennas, covering 9 kHz to 30 MHz, are used to assess magnetic field emissions and immunity, particularly in railway signaling and power systems, while rod (monopole) antennas serve a similar role in measuring electric field emissions in the same frequency range. Additionally, hybrid antennas, such as Biconilog antennas, combine biconical and log-periodic designs to provide a broad frequency range from 30 MHz to 3 GHz, offering a single-antenna solution for multiple EMC tests. These antennas are critical for ensuring railway systems meet electromagnetic compatibility requirements, preventing interference with onboard electronics, signaling equipment, and infrastructure.

MIL-STD 461 Active Monopole antenna
Active Monopole Antenna

This Biconical antenna is the standard workhorse of any EMC test house for emissions testing.

Active 12-inch Loop Antenna
Active 12" Loop Antenna

A 12" Broadband Loop Antenna with preamplifier is an excellent solution for shielding effectiveness or emissions testing.

24-inch Passive Loop Antenna
24" Loop Antenna

This Passive Shielded Loop Antenna is an excellent solution for both emissions and immunity testing at high frequencies.

standard biconical antenna
Biconical Antenna

This Biconical antenna is the standard workhorse of any EMC test house for emissions testing.

log periodic antenna
Log Periodic Antenna

This Log Periodic has been manufactured to ensure maximum gain, low VSWR and high power

antenna kit
High Frequency Bilogical Kit

For rapid deployment along with the mobility of small package, this Bilogical Antenna Kit provides an inexpensive solution.

hybrid (Biconical/Log periodic) antenna
High Frequency Bilogical Antenna

Simplify compliance testing with this broadband, high frequency hybrid antenna.

double ridge guide horn antenna
18 GHz Double Ridge Guide Horn Antenna

SAS-571 Double Ridge Guide Horn Antenna is a broadband antenna that offers excellent performance over the range of 700 MHz to 18.0 GHz.

Antenna Tripods and mounting adapters
Tripods and Mounting Adapters

Our tripods and antenna mounting adapters are specificly designed to meet the needs of any Test lab

RF cable assmeblies
RF Cables

We stock raw cables and connectors in order to make custom length RF cables within a few days.

EN 50121 Test Standard for Railway Electromagnetic Compatibility (EMC)
EN 50121 is a European standard that specifies the Electromagnetic Compatibility (EMC) requirements for railway applications. It ensures that railway equipment operates without causing or being affected by electromagnetic interference (EMI), ensuring the safe and reliable performance of electronic systems in railway environments. The standard is part of the broader EN 50121 series, which defines EMC limits and test procedures for various railway subsystems, including rolling stock, signaling equipment, and trackside infrastructure.

EN 50155 Test Standard for Railway Applications
EN 50155 is a European standard that defines the requirements for electronic equipment used in railway applications. It ensures that onboard electronic devices, such as control systems, data communication modules, and monitoring equipment, can withstand the harsh environmental and electrical conditions encountered in railway operations. The standard covers various aspects of performance, reliability, and durability to guarantee safe and uninterrupted railway operations.

IEC 61000 Test Standard for Electromagnetic Compatibility (EMC)
IEC 61000 is an international standard developed by the International Electrotechnical Commission (IEC) to define Electromagnetic Compatibility (EMC) requirements for electrical and electronic equipment. It ensures that devices can operate reliably in electromagnetic environments without causing or suffering from interference. The standard covers electromagnetic emissions and immunity to ensure compliance across various industries, including industrial, commercial, transportation (such as railways), and consumer electronics.

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