Trend of practical application of products utilizing mmWave
What is millimeter wave
Millimeter waves are generally referred to as electromagnetic waves (radio waves) with a frequency range of 30 to 300 GHz. Compared to the frequency of radio and television broadcast waves, millimeter waves are orders of magnitude higher in frequency.
Due to the high frequency feature, it can be used for large capacity data transmission and high precision sensing.
Background requiring millimeter waves
Devices and terminals that support wireless signal transmission are indispensable in daily life. If end users handle more information, more signal bandwidth will be needed as a wireless resource.
This wireless signal band may be exhausted in places where traffic is concentrated. We face the urgent task of not relying on wireless signal transmission for communication, management and control that supports everyday life.
For these reasons, it has become necessary to actively utilize millimeter waves with very high frequencies.
General propagation characteristics of millimeter waves
Radio and television broadcast waves can be propagated with little signal power attenuation in the air, even if the end user's receiving (receiving) location is far from the base station. In addition, supported by the nature of spreading waves called diffraction and the propagating nature of the ionosphere, buildings, etc., the broadcast waves wrap around to the receiving antenna and reception (reception) is established.
In the case of millimeter waves, the directivity is high like light waves, the diffraction is small, and additionally, the signal power attenuates greatly in the atmosphere. Millimeter waves are hard to use for long distance transmission between base station and end user.
However, since the two properties of high frequency and low diffraction are suitable for short-distance transmission, in-vehicle radar, high-precision sensing, etc., these systems based on millimeter waves are currently being put to practical use.
Tasks for solving practical use of millimeter waves
To properly guide the millimeter wave signal to the RF integrated circuit inside the device, peripheral components such as high frequency circuit boards, antennas, connectors and cables corresponding to the high frequency are required. In order to ensure the signal quality of millimeter waves, high precision parts processing technology is also required for these peripheral parts. Mass production compatibility of peripheral parts is also important for practical use of millimeter-wave terminals, devices and systems.
In recent years, due to advances in semiconductor process / device technologies corresponding to millimeter waves, mass productivity of RF integrated circuits has been rapidly improved. Both mass productivity and quality are also important for antennas, connectors and cables.
Our millimeter wave coaxial connectors
In view of the above background and the progress of peripheral technologies, we introduce Hirose Electric's millimeter wave product lineup and its features.
We would be pleased if we could serve as many customers involved in the development of millimeter-wave related products. Thank you for your consideration.
Related links
HRS connectors for mmWave
mmWave coaxial connectors for high frequency test applications
Push-on connectors for internal wiring for RF instruments
Cable harness, adapter, terminator for mmWave
[Category] RF/Coaxial
