5G Multi-layer PCB Solutions

5G Wireless Communications

Network Architecture

Governments and private industry are working together to develop 5th generation(5G) mobile communication systems by designing network architectures capable of delivering "enhanced Mobile Broadband” (eMBB), "Ultra Reliable Low Latency Communications” (URLLC) and "massive Machine Type Communications” (mMTC). While 4G systems use frequencies in the 700MHz to 3.5GHz range, 5G functions in higher frequency bands. 5G architecture employs macrocell base stations operating sub-6GHz bands (like 3.7 GHz and 4.5GHz) to cover wide areas in combination with smaller base stations running in the millimeter wave band to provide local coverage.

Massive MIMO Technology

4G base stations emit their radio waves in all directions while 5G base stations employ "Beamforming" technology which uses multi-element antennas to form sharply focused beams.
This architecture supports “Massive Multi-Input Multi-Output” (MIMO) which enables simultaneous communication with multiple devices and greatly expands network coverage capability.

Multi-layer PCB Solutions

Because 5G uses higher frequencies, low transmission loss circuit board materials are required. Panasonic has created a suite of Multilayer Circuit Board Materials that enable high-speed, low transmission loss designs by combining innovative resin systems with low-roughness copper foil bonding technology.
Panasonic low-loss PCB materials also exhibit superior workability which supports the requirements of leading-edge super multi-element antennas. This is important because ‘Multilayering” enables highly efficient integrated modules in which the antenna and the RF chip are on the same board.
To support product development, Panasonic has developed a unique modelling technology that can be applied for PCB materials up to 110GHz.

Panasonic introduces an innovative test methodology for accurately characterizing PCB materials for high-speed communication system designs.

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Product Press Release

Panasonic Commercializes R-5410 Halogen-free Ultra-low Transmission Loss Multi-Layer Circuit Board Material for Millimeter-Wave Antennas
- This material improves antenna performance and reduces circuit board manufacturing costs

Panasonic Low Transmission Loss Multi-layer Circuit Board Materials

Dk Df Test method

Easy handling at PCB process
Possible to multilayered of Antenna
3.0 0.002 10GHz
Cavity resonance

High thermal conductivity
Stability under high temperature storage
3.6 0.005
Ultra low loss
High layer count
3.4 0.002 12GHz
circular disk resonator

Halogen-free type
Stability under high temperature storage
3.4 0.003
De facto standard material in industry
Stability under high temperature storage
3.4 0.004

Highly heat resistant at Reflow process
Good transmission loss
3.8 0.007 10GHz

Our Halogen-free materials are based on JPCA-ES-01-2003 standard and others.
Contain; Chlorine:≤0.09wt%(900ppm), Bromine:≤0.09wt%(900ppm),

The above data are typical values and not guaranteed values.