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Log Periodic and Biconical Antennas

Log periodic antennas are ideal for EMC (electromagnetic compatibility) broadband testing to verify compliance with worldwide regulations and requirements. These antennas are used for both injection RF and monitoring RF emissions in the course of device evaluation and certification. As a directional antenna, log period antennas balance directivity, gain, and a wide bandwidth to amplify the strength of a signal. There are multiple formats of log periodic antennas including zig-zag, slot log, v log, and trapezoidal. The most common format is called log periodic dipole arrays (LPDA). The LPDA integrates multiple dipole elements for a smoother frequency transition, where different dipoles will be activated as the frequency fluctuates. Log periodic antennas can be used within a frequency range of 80 MHz to 7 GHz and are exceptional for shielding effectiveness, site-survey, pre-compliance testing, and full compliance applications.

Biconical antennas are essential for lower frequency EMI (electromagnetic interference) testing for EMC applications including emissions testing, immunity testing, measuring RF shielding efficiency, and more. These antennas gain a broadband frequency with their double-cone design. These cones amplify the signal and enhance conductivity. Biconical antennas operate over the frequency range of 20 MHz to 18 GHz and are effective for FCC, MIL-STD, CISPR, EN, plus other immunity testing standards.

Avalon Test Equipment carries a wide variety of both log periodic and biconical antennas to meet your testing requirements. Rent or purchase from Avalon and Test With Confidence®.

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A.H. Systems SAS-510-2 Log Periodic Antenna

A compact, lightweight antenna that has been designed to ensure maximum gain, low VSWR and with high power handling capabilities.

Teseq CBL 6112D Bilog Antenna

30 MHz to 2 GHz, 300 Watts CW

Teseq CBL 6144 Ultra-broadband BiLog Antenna for Compact Chambers

The X-Wing® BiLog® for RF EMC immunity testing

A.H. Systems SAS-540 Biconical Antenna

Operates efficiently over the frequency range of 20MHz–330MHz.

ETS-Lindgren 3147 Log Periodic Dipole Array Antenna

ETS-Lindgren's Model 3147 Log Periodic Dipole Array is primarily designed for use with the FCC Part 15.

ETS Lindgren 3109 Biconical Antenna

ETS-Lindgren's Model 3109 Biconical Antenna uses a modified Guanella balun for impedance transformation and matching.

ETS Lindgren 3183B Broadband Mini-Bicon Antenna

ETS-Lindgren's Model 3183B is an end fed Mini-Bicon Antenna designed for CISPR 16-1-4 and ANSI C63.25 chamber validation testing above 1 GHz. The frequency range for the Model 3183B is 1 GHz to 18 GHz.