Antenna pattern measurement (APM) and over-the-air (OTA) measurements are integral parts of compliance testing for Bluetooth, zigbee, antennae, and other wireless devices. In addition to measuring operability and performance, these methods are required for a variety of certifications, including CE marking and CTIA approval.

Antenna Pattern Measurements

Element's antenna pattern measurement testing chamber is equipped with state-of-the-art technology for the latest radio testing standards. Our AMS-8923-195 lab includes a multi-antenna array that houses twenty-three (23) dual-polarized measurement antennas spaced every 15º. The turntable/positioner for the device under test (DUT) provides continuous rotation along the phi axis with minimized reflections through the use of low dielectric materials in a fully anechoic room (FAR.) 

Our antenna pattern measurement lab is also equipped with a goniometer to improve that 3D resolution from 15º down to 1º as needed. An integrated laser alignment system assists with DUT positioning, and with an integrated high-speed switch controller, the system provides fast switching between antennas for accelerated testing.  

APM testing capabilities

Some of the features we test for include:

  • 400 MHz – 6 GHz
  • 3D and 2D patterns
  • Bluetooth, WiFi (802.11), ZigBee (802.15.4), ISM, RFID, Med radio- MICS bands
  • Antenna efficiency measurements
  • Absolute gain
  • Passive and active measurements
  • Design and evaluation for antenna designers and system integrators
Over-the-Air Measurements

We provide testing per the Cellular Telecommunications and Internet Association (CTIA) Test Plan for Mobile Station Over-the-Air (OTA) performance. As required for OTA testing, our test chamber supports testing for both Total Radiated Power (TRP) and Total Isotropic Sensitivity (TIS) measurements according to the CTIA specifications. 

Our test program is designed for testing various antenna devices and mobile handsets, with or without a simulated human head or hand. This includes mobile stations, handsets and the incorporation of pre-certified modules at the system level. To ensure full compliance, our over-the-air measurement system is compliant with software and hardware requirements defined by the CTIA for testing mobile handsets. 

OTA testing capabilities

Some of the technologies that we test include:

  • GSM
  • CDMA
  • GPRS
  • WCDMA
  • 1xEVDO
  • HSUPA/HSPA+
  • HSDPA
  • LTE-SISO
The Element Advantage

With years of experience in locations across the globe, we support your team with world-class testing, expert guidance, and access to markets in multiple countries. We leverage our global platform of labs to provide service when you need it, employing integrated high speed switch controllers, accelerating antenna pattern measurements and decreasing time to market. Our team also includes experts in global approvals and related services such as EMC and SAR testing, making us a single source provider for all of your product compliance needs (link). 

For more information about our antenna pattern measurements and over-the-air measurements, or to request a quote, speak to an expert today. 

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