Omnidirectional Antennas - Antenna Selection by Application
An omnidirectional antenna is an antenna which radiates power uniformly in one plane with a directive pattern shape in a perpendicular plane. This pattern is often described as "donut shaped".
Omnidirectional Antennas
Monopole Antennas
100 Hz - 60 MHz
The Active Monopole Antenna can drive any receiver with 50 ohm input impedance and will perform FCC, MIL-STD and TEMPEST tests.
Dipole Antennas
25 MHz - 3 GHz
These half wavelength resonant dipole antennas are the foundation of every compliance testing lab and the ideal solution for site attenuation measurements.
Biconical Antennas
20 MHz - 18 GHz
7 models of Biconical Antennas operate efficiently over the frequency range of 20 MHz to 18 GHz. Suitable for FCC, MIL-STD, VDE, TEMPEST, and immunity testing.
Loop Antennas
20 Hz - 30 MHz
Whether used in a set to measure shielding effectiveness per MIL-STD 285 and NSA 65-6 or individually to satisfy specific requirements, the Loop Antenna is an efficient, low cost solution.
H-Field Rod Antennas
30 MHz - 1 GHz
For those situations when improved sensitivity is desired in magnetic field testing, the H-Field Rod is an effective alternative to traditional loop antennas.
RF Cables
up to 40 GHz
Our Low-Loss High-Frequency flexible cables are the preferred choice over standard cable types.
Tripods and Mounting Adapters
Our tripods and antenna mounting adapters are specificly designed to meet the needs of any Test lab
Other Related Resources
Biconical Antenna Selection for Compliance Testing
Application Note
The Biconical Antenna is considered a standard workhorse for every compliance test lab. Used in a variety of applications such as radiated emissions, immunity and shielding effectiveness testing; this application note will help guide the decision process of which Biconical Antenna to purchase.
Tuneable Dipole element lengths
Application Note
Our tunable dipole antennas have a set of telescoping elements that needs to be adjusted to the frequency of interest. Here is a lookup table of our Tuned Dipole Antennas and the appropriate element lengths for each balun.
Antenna Factor Calculations and Deviations
Article
Antenna Factor is used in EMC/EMI testing to convert received voltage to the radiated field intensity. This article explains the term and it's deviations.
The 10 Factors You Need to Consider When Selecting an EMC Antenna
Webinar
The antenna is one of the least understood components in an EMC test instrumentation set-up, and a poor choice of antenna(s) can lead to multiple problems. this webinar, presented by AH Systems, guides you through the key parameters that need to be considered when selecting an EMC test antenna.
Typical EMC Related Formulas
Formulas and Calculations
This Tech. Note covers frequently used conversion factors, how they are derived, and why they are used. If you need to convert from one series of units to another for any reason, this is the tech. note for you.
Other Services
Additional Resource
Antenna Factor and Gain Calculations
Have a gain value but need the Antenna Factor? or the other way around? This calculator will calculate the Antenna Factor (dB/m), gain (dBi), and gain (Numeric) values... [more...]
Popular links
Product Showcase
Broadband Biconical Antenna:
- 30 MHz to 1 GHz
- Broadband, Omni-Direction
- Transmit and recieve
This Biconical Antenna is an ideal solution for high frequency, broadband, omni-direction requirements.
Contact Details
A.H. Systems, inc.
9710 Cozycroft Ave.
Chatsworth, CA 91311
P: (818) 998-0223
F: (818) 998-6892
E: Email