Antennas

For Customers Developing Antennas

For millimeter wavebands in 5th generation mobile communications systems (5G),
antennas and wireless send/receive modules have been integrated into a single unit to reduce transmission losses.
For this reason, performance evaluations, such as temperature dependency
and reliability evaluations must be performed wirelessly (OTA: Over the Air).
Protocol tests in a temperature environment must also be conducted on communications modules for antennas.
ESPEC provides optimal products for these evaluations.

Test Systems

Systems for OTA Tests/Wireless Tests in Temperature Environments

For 5G base stations, temperature dependency evaluations in OTA measurements are required because antennas and wireless send/receive modules have been integrated into a single unit to reduce transmission losses.
These systems are capable of conducting temperature tests while possessing the functionality of an RF anechoic chamber.

  • Systems for OTA Tests/Wireless Tests in Temperature Environments Constant Temperature RF Anechoic Chamber
    • It is possible to conduct wireless RF performance tests in a temperature environment.
    • Shielding performance → frequency range: 0.5 to 30 GHz, attenuation rate: 60 db or higher.
    • There is no negative impact on peripheral equipment because leaking of radio waves generated by the specimen is prevented.
    • The interior of the RF anechoic chamber can be precisely controlled from low temperature to high temperature.
    • Freezing is prevented by our proprietary insulation technology, which allows the operation of a turntable or positioner without operating restrictions even at low temperatures.
    Controlled temperature range -40 to +100 °C
    Shielding performance Frequency range 0.5〜30 GHz *
    Attenuation rate 60 db or higher*
    Interior dimensions(mm) W14000×H3000×D7000 *

    * Contact ESPEC for shielding performance and interior dimensions not listed above.

  • Systems for OTA Tests/Wireless Tests in Temperature Environments Shielded Box/RF Anechoic Box + Precision Air Supply System
    • It is possible to conduct wireless RF performance tests
      in a temperature environment.
    • Temperature-regulated air from the unit-type temperature supply system is supplied to the RF anechoic box through
      a duct.
    • A box that allows radio wave transmissions is used to keep
      the temperature environment of the specimen constant.
    • You can connect this system to an RF anechoic box/shielded box that you already own.
      * Contact ESPEC in advance to determine if the system can be connected.
    Controlled temperature range -40 to +100 °C
    Shielding performance Frequency range 77 GHz
    Attenuation rate 50 db
    Interior dimensions(mm) W1200×H1200×D12000
    (The interior dimensions can be changed.)
  • Temperature Environment Wireless Protocol Test System - RF Anechoic Box-Type Low Temperature Chamber
    • Capable of wireless protocol tests in a temperature environment.
    • Ensures an attenuation rate of 60 dB or greater in 4.0 to
      6.0 GHz frequency bands.
    • The interior of the RF anechoic box can be precisely controlled from low temperature to high temperature.
    • Smaller installation area than an RF anechoic chamber to facilitate testing of small communications modules.

    Description Video

    ModelPUAN-3PUAN-4
    Frequency range /
    Attenuation rate
    0.7~2.4GHz/45dB~
    2.4~4GHz/50dB~
    4~6GHz/60dB~
    Controlled temperature range -40 to +100 °C
    Interior dimensions(mm) W300×H550×D500 W750×H750×D550

Consult with Our Dedicated 5G/IoT Advisors

We can help you work through issues related to testing.

ESPEC Has Acquired ISO 27001 Information Security Certification

We will continue to maintain and improve our information security management systems so our customers can perform testing with peace of mind.



*The organization of these certificates is ESPEC CORP. Japan.

Motoki Syouzu

Environmental Test Equipment Headquarters Marketing Group

Let me make the most of the years the years of knowledge I have obtained as a sales representative for communications device and electronic components manufacturers to help you develop cutting-edge technologies.

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